Term
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Definition
- Paratiod
- Sublingual
- Submandibal
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Term
| 4 Layers of the G.I. Track |
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Definition
- Muscosa
- Submuscosa
- Muscularis
- Serosa
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Term
| List the digestive track from beginning to end |
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Definition
- Oral cavity
- Orophaynx
- Espagus
- Stomach
- Small Intestine
- Large Intestine (colon)
- Rectum
- Anus
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Term
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Definition
| Circular muscle that contracts (closed) and relaxes (open) |
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Term
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Definition
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Term
Is deglutition voluntary, involuntary or both?
Where does deglutition occur? |
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Definition
Deglutition can be both voluntary and involuntary.
In the oral cavity during swallowing it is voluntary.
In the oropharynx (throat) it is involuntary. |
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Term
Describe the esophagus.
What type of muscle make up the esophagus. |
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Definition
The esophagus is a conduit that connects the throat and the stomach.
The esophagus is divided up into a upper, middle and lower part.
- The upper consists of skeletal muscle.
- The middle consists of both skeletal and smooth muscle.
- The lower consists of smooth muscle.
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Term
| Name the parts of the stomach. |
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Definition
- Cardia
- Fundus
- Body
- Pylorus
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Term
Name the muscle layer of the stomach.
Are they smooth or skeletal muscles? |
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Definition
- the outer longitudinal muscles
- the middle circular muscles
- the inner oblique muscles
The muscles are all smooth. |
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Term
| Food traveling through the digestive track is called what and where? |
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Definition
Food in the oropharynx, esophagus and stomach is called bolus.
Food in the stomach and small intestine is called chyme. |
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Term
| Saliva contains what and what does it do? |
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Definition
- mucus - lubrication
- electrolytes
- lysoyme - defense against food borne pathagens
- IgA - defense against food borne pathagens
- Salivary amylase - chemical digestion of starch
- Salivary lipase - chemical digestion of lipids
- H2O - 98% of salvia
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Term
| What are auxiliary organs and glands of the digestive track? |
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Definition
- Teeth - mastication
- Salivary glands
- tongue - tasting
- liver - bile
- pancreas - Pancreatic amylase - which helps to digest sugars (carbohydrates) and Pancreatic lipase - which helps to digest fat
- gall bladder -storage for bile
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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
What are hormone causes the gallbladder to secrete bile?
What make the hormone? |
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Definition
Cholecystokinin
CCK is produced by enterocytes. |
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Term
| What does bile do to a fat globule? |
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Definition
Bile increases the surface area of a fat globule by breaking into smaller sized fat globules which increases the surface are so lipase can begin chemical digestion. |
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Term
| What is the surface area of the inside of the stomach called? And what is it purpose? |
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Definition
The inside surface of the stomach is call the rugae and it increases surface area. |
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Term
What are the functions of hydrochloric acid, HCL?
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Definition
- Activates pepsin
- Makes Fe2+ available
- Kills microbes
- Breaks down plant cell walls
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