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Major Mammalian Organs
significant respiratory and digestive structures of felis
29
Biology
Undergraduate 3
06/16/2009

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Term
Gastrointestinal tract
Definition
Physical and chemical breakdown of food to acquire nutrients
Term
muscular tongue
Definition
aid in manipulation of food during mastication
Term
salivary glands (parotid & submandibular)
Definition
lubrication of food to assist in swallowing and secreting digestive enzymes to assist in chemical breakdown of food
Term
parotid gland
Definition
secrets saliva into buccal cavity and facilitates mastication and swallowing
Term
submandibular gland
Definition
secrets saliva into buccal cavity to facilitate mastication and swallowing
Term
esophagus
Definition
passage of food from the mouth to the stomach
Term
stomach
Definition
storage and treatment center for food prior to entry into the intestine (lined with rugae)
Term
small intestine (duodenum, jejunum, ileum)
Definition
majority of chemical digestion occurs here
Term
duodenum
Definition
breakdown of food in small intestine
Term
jejunum
Definition
absorption of nutrients in small intestine
Term
ileum
Definition
absorption of vitamin B12, bile salts and nutrients not absorbed by the jejunum
Term
colon (large intestine)
Definition
further treatment of foods that have resisted treatment thus far, facilitated by abundant intestinal flora
Term
macrovilli & microvilli
Definition
increase surface area in intestine for absorption of nutrients
Term
liver
Definition
secretes bile into the intestinal track to aid digestion and involved in the storage and processing of nutrients (know the six different lobes)
Term
gall bladder
Definition
stores and releases bile when fatty foods enter the digestive tract
Term
pancreas
Definition
secretes digestive enzymes (insulin and glucagon)
Term
kidney
Definition
filters nitrogenous waste products from the blood and maintains body fluid homeostasis by regulating water and sodium balance
Term
thyroid gland
Definition
secretes several hormones involved in regulation of metabolism
Term
thymus gland
Definition
lymphatic organ that is essential in immune response
Term
greater omentum (mesentary)
Definition
fat storage, immunity and cushioning
Term
mandibular lymph nodes
Definition
contains lymphocytes that collect and destroy bacteria and viruses (found on jaw)
Term
spleen
Definition
controls red blood cell homeostasis through their storage and destruction
Term
epiglottis
Definition
guards the trachea from the entry of food particles
Term
trachea
Definition
passage of air. Contains ccratilaginous rings that prevent airway from collapsing
Term
larynx
Definition
sound production (houses true and false vocal chords
Term
glottis
Definition
involved in sound production
Term
lung
Definition
gas exchange; absorbs oxygen and expels carbon dioxide
Term
diaphragm
Definition
increases and deceases volume of pleural cavity
Term
heart
Definition
pumps blood through blood vessels to the lungs and body
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