Term
The digestive tract is... |
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Definition
a long tube, which leads from the mouth, through the neck, thorax, abdomen and pelvis and finishes at anus. |
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Term
The contents of the digestive tract are... |
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Definition
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Term
The contents of the digestive tract become part of the body through... |
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Definition
absorption through the lining of the tract. |
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Term
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Definition
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Term
The stomach, hydrochloric acid and enzymes do what? |
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Definition
reduce the food into a liquid form (chyme). |
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Term
Digestive enzymes are added in the duodenum from... |
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Definition
duodenal glands, and the pancreatic and common bile duct. |
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Term
What do the jejunum and ileum possess that are designed to absorb broken down food into the bloodstream? |
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Definition
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Term
In what part of the digestive system is most of the water, found in the lumen, absorbed? |
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Definition
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Term
What are the names of the salivary glands of the mouth? |
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Definition
parotid, submaxillary and sublingual. |
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Term
The liver adds enzymes and toxins via the... |
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Definition
extra-hepatic biliary apparatus. |
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Term
Control of the digestive tract is via... |
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Definition
the endocrine and the ANS. |
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Term
The mucosa has how many layers? |
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Definition
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Term
The mucosal epithelium... |
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Definition
varies from proximal to distal. |
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Term
What type of epithelium forms a protective layer for the esophagus, mouth, pharynx, and anal canal? |
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Definition
stratified squamous epithelium. |
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Term
The stomach has secretory epithelium with... |
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Definition
long, tubular glands that secrete HCl and digestive enzymes. |
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Term
The small intestine has what type of epithelium? |
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Definition
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Term
What increases the surface area of the small intestinal epithelium? |
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Definition
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Term
The large intestine has what type of epithelium? |
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Definition
absorptive/protective epithelium. |
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Term
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Definition
secrete mucous, enabling feces to pass smoothly. |
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Term
The lamina propria may contain: |
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Definition
lymphoid tissue (peyers patches). |
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Term
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Definition
produce folding on the mucosa. |
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Term
The submucosa is composed of... |
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Definition
loose connective tissue, containing nerve plexuses. |
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Term
Sub mucosal glands found in the duodenum are called... |
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Definition
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Term
The muscularis is usually composed of... |
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Definition
2 layers of smooth muscle, and inner circular layer and an outer longitudinal layer. |
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Term
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Definition
contractile waves that move the contents down the lumen. |
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Term
Peristalsis is controlled by... |
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Definition
the ANS via nerve plexuses located between the muscle. |
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Term
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Definition
the outer layer of loose connective tissue. |
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Term
In the abdomino-pelvic cavity, the adventitia is lined with what type of epithelium? |
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Definition
visceral peritoneum (simple squamous). |
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Term
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Definition
muscular tube that hangs down from the base of the occipital bone in front of the cervical vertibrae. |
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Term
The pharynx communicates anteriorly with the... |
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Definition
nasal cavity, mouth and larynx. |
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Term
The pharynx is continuous inferiourly with what? |
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Definition
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Term
How long is the nasopharynx? |
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Definition
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Term
The nasopharynx opens anteriorly into the nasal cavity via what? |
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Definition
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Term
The nasopharynx communicates with the middle ear via the... |
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Definition
tympanic (Eustachian) tube. |
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Term
The oropharynx extends from... |
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Definition
the soft palate down to the hyoid bone. |
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Term
The oropharynx is connected to the mouth via the... |
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Definition
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Term
The laryngopharynx extends from... |
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Definition
the hyoid bone to the esophagus. |
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Term
Where is the opening to the larynx located? |
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Definition
the wall of the proximal laryngopharynx. |
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Term
What protects the entrance of the larynx? |
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Definition
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Term
How many sets of tonsils are there encircling the openings of the mouth and nose? |
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Definition
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Term
What function do the tonsils provide? |
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Definition
primary defense mechanism against infection. |
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Term
Where is the pharyngeal tonsil located? |
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Definition
posterior wall of the top of the pharynx. |
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Term
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Definition
infected pharyngeal tonsils. |
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Term
Where are the palatine tonsils located? |
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Definition
in a depression at the base of the fauces, one on each side |
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Term
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Definition
are oval and have an upper and lower pole; rest on an extremely thick, fibrous base. |
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Term
The lingual tonsils are... |
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Definition
small clusters of lymphoid tissue. |
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Term
Where are the lingual tonsils located? |
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Definition
posterior part of the tongue. |
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Term
What are the 2 division of the mouth (by the teeth)? |
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Definition
vestibule, oral cavity (mouth proper). |
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Term
Where is the vestibule located? |
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Definition
between the lips and gums (teeth). |
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Term
What is the vestibule lined with? |
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Definition
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Term
The vestibule contains... |
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Definition
the opening of the duct of the parotid gland (opposite 2nd molar). |
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Term
The oral cavity contains what? |
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Definition
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Term
Characteristics of the oral cavity: |
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Definition
roof (palate), floor (beneath the tongue), and 2 walls (cheeks). |
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Term
The hard palate is made of... |
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Definition
palatine processes of the maxilla and the 2 palatine bones. |
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Term
The soft palate features what? |
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Definition
the non-functional uvula. |
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Term
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Definition
is a muscular organ with a specialized mucosa containing the taste buds |
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Term
The body of the tongue is made up of what? |
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Definition
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Term
What are the 3 groups od intrinsic muscle fibres? |
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Definition
vertical, horizontal and transverse. |
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Term
How many extrinsic mucles are there in the tongue? |
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Definition
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Term
What are the specialized processes of the tongue called? |
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Definition
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Term
Where are the papillae most concentrated? |
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Definition
on the top and sides of the tongue. |
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Term
What tethers the tongue to the floor of the mouth? |
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Definition
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Term
2/3 back from the tip of the tongue is a V-shaped groove called the... |
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Definition
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Term
Where is the parotid gland located? |
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Definition
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Term
the parotid gland secretes a... |
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Definition
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Term
The parotid gland empties into the mouth opposite the... |
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Definition
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Term
Where is the submandibular gland located? |
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Definition
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Term
What does the submadibular gland secrete? |
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Definition
a serous and mucous fluid (mixed). |
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Term
Where are the sublingual glands located? |
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Definition
the floor of the mouth on each side. |
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Term
Which cranial nerve innvervates the parotid gland? |
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Definition
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Term
Which cranial nerve innervates the submandibular gland? |
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Definition
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Term
Which cranial nerve innervates the sublingual glands> |
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Definition
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Term
What is the average number teeth an adult has? |
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Definition
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Term
Each half jaw contains... |
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Definition
2 incisors, 1 canine, 2 pre molars, and 3 molars. |
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Term
The upper jaw and teeth are innervated by which cranial nerve? |
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Definition
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Term
The lower jaw and teeth are innervated by which cranial nerve? |
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Definition
the mandibular nerve (V). |
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Term
The esophagus enters the abdomen by... |
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Definition
penetrating the diaphragm at T10. |
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Term
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Definition
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Term
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Definition
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Term
Where is the fundus located? |
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Definition
under the left diaphragm, rising form the gastro-esophageal sphincter. |
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Term
What does the gastro-esophageal sphincter do? |
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Definition
controls the admission of food into the stomach. |
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Term
What is the fundus lined with? |
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Definition
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Term
What is the largest part of the stomach? |
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Definition
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Term
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Definition
lesser and greater curvature. |
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Term
What position is the pylorus usually in? |
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Definition
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Term
When does the pyloric sphincter open? |
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Definition
when the duodenum is ready. |
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Term
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Definition
the area where the stomach tapers down towards the pylorus and pyloric sphincter. |
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Term
What is the pyloric sphincter? |
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Definition
a thick, muscular valve that controls the flow of liquified fluid into the duodenum. |
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Term
What hangs from the greater curvature? |
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Definition
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Term
What is pyloric stenosis? |
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Definition
pyloric sphincter doesn't open and chyme can't pass- infant dies eventually. |
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Term
How long is the duodenum? |
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Definition
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Term
In what part of the digestive tract are digestive enzymes from the liver and pancreas mixed with food? |
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Definition
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Term
Describe the shape of the duodenum. |
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Definition
horseshoe-shaped (concave to the left), with the head of the pancreas in its concavity. |
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Term
What does the superior (horizontal) lim of the duodenum do? |
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Definition
links the stomach (via the pylorus) to the descending limb. |
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Term
The descending limb of the duodenum... |
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Definition
has the entrance and valve for the conjoined pancreatic and bile duct. |
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Term
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Definition
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Term
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Definition
continuous with the jejunum. |
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Term
How does cancer spread through the body? |
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Definition
via the venous and lymphatic drainage. |
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Term
What is the approximate combined length of the jejunum and ileum? |
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Definition
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Term
Where is the jejunum located? |
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Definition
upper left of the abdominal cavity. |
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Term
Where is the ileum located? |
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Definition
the lower right of the abdominal cavity. |
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Term
What is the ileum more likely to have migrating around it? |
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Definition
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Term
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Definition
a more complex system of arteries running to it. |
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Term
What does the ileum empty into? |
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Definition
the cecum, via the ileo-cecal valve. |
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Term
What is the main function of the large bowel? |
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Definition
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Term
What is the vestigial addition on the cecum called? |
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Definition
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Term
How long is the ascending colon? |
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Definition
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Term
The ascending colon ascends to the... |
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Definition
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Term
The middle transverse colon transverses to... |
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Definition
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Term
Where is the descending colon located? |
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Definition
left side of the abdomen. |
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Term
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Definition
very mobile, S-shaped and empties into the rectum. |
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Term
What are the names of the longitudinal muscle strips that run the length of the large bowel? |
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Definition
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Term
What do you call the gatherings of the large bowel?
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Definition
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Term
What are the fat sacs on the large bowel called? |
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Definition
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Term
The rectum is continuous with what? |
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Definition
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Term
When the rectum pierces the levator abi muscle, it becomes what? |
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Definition
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Term
How long is the anal canal? |
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Definition
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Term
The upper half of the anal canal is thrown into longitudinal folds called what? |
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Definition
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Term
What is located at the distal end of the anal canal? |
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Definition
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Term
The internal sphincter is... |
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Definition
a thickening of the smooth muscle wall (involuntary). |
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Term
The external sphincter is... |
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Definition
striated muscle with a superficial, middle and deep component (voluntary). |
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Term
What is the largest solid organ in the body? |
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Definition
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Term
The liver receives blood from... |
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Definition
common hepatic artery and the protal vein. |
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Term
What does the lvier produce? |
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Definition
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Term
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Definition
extra-hepatic biliary apparatus. |
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Term
What are the function of bile salts? |
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Definition
emulsift fats and toxic wastes excreted in feces. |
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Term
How does the liver store energy? |
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Definition
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Term
How many liver lobules is the liver composed of? |
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Definition
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Term
What radiates from the central vein of the liver lobules? |
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Definition
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Term
How are hepatocytes separated from each other? |
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Definition
sinusoids (highly permeable, specialized blood vessels). |
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Term
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Definition
allow blood to travel through the lobule towards the central vein. |
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Term
What veins contribute to the inferior vena cava? |
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Definition
left and right hepatic veins. |
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Term
What is bile excreted into? |
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Definition
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Term
Bile ducts coalesce to form what? |
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Definition
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Term
The common hepatic duct leaves the liver via what? |
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Definition
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Term
What are the names of the lobules of the left and right liver? |
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Definition
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Term
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Definition
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Term
The liver is innervated by what cranial nerve? |
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Definition
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Term
What enters the porta hepatis? |
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Definition
vestigial round ligament. |
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Term
How is the vestigial round ligament connected to the anterior abdominal wall? |
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Definition
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Term
Anteriorly, the liver looks... |
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Definition
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Term
What is the ligamentum teres? |
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Definition
remnant of the umbilical vein. |
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Term
(superiorly) The dome of the right lobe is called the... |
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Definition
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Term
The porta hepatis contains what? |
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Definition
hepatic artery, portal vein and biliary apparatus. |
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Term
The common hepatic duct + the cystic duct makes... |
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Definition
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Term
The main pancreatic duct enters the duodenum through the... |
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Definition
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Term
The gall bladder is what? |
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Definition
muscular and pear-shaped. |
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Term
What does the gall bladder do? |
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Definition
stores and concentrates bile. |
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Term
What id the condition called when bile is too concentrated? |
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Definition
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Term
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Definition
a mixed gland (endorine and exocrine). |
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Term
Where is the pancreas located? |
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Definition
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Term
What surrounds the head and uncinate process of the pancreas? |
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Definition
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Term
What percent of the pancreas is endocrine? |
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Definition
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Term
The gall bladder is lined with what type of epithelium? |
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Definition
very tall absorptive epithelium. |
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Term
The celiec trunk serves what? |
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Definition
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Term
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Definition
stomach, first part of the duodenum, liver, gall bladder, pancreas, and spleen. |
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Term
The left gastric artery supplies the... |
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Definition
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Term
The common hepatic artery supplies the... |
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Definition
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Term
The splenic artery supplies the... |
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Definition
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Term
The superior mesenteric artery supplies the... |
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Definition
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Term
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Definition
lower duodenum, jejunum, ileum and 2/3 or the large bowel. |
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Term
The inferior mesenteric artery supplies the... |
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Definition
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Term
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Definition
distal transverse colon, the descending and sigmoid colon and rectum. |
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Term
The inferior mesenteric artery originates... |
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Definition
~4 cm above the aortic bifurcation. |
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Term
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Definition
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Term
The IVC is fed by veins from where? |
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Definition
the abdominal wall and paired glands. |
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Term
The portal vein is made up of... |
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Definition
the splenic, superior mesenteric and inferior mesenteric veins. |
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