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Terms in this set (35)
what is the function of the digestive system?
preparing food for absorption: ingestion, grinding, absorption, elimination
what are 2 other names for the digestive system?
what 5 organs make up the digestive system?
what are the 5 accessory organs of the digestive system?
What are the 6 types of walls of organs?
mouth to stomach
stomach to anus
connective tissue - blood vessels present
esophagus - striated and smooth
stomach - three layers of smooth (1.circular 2.longitudinal 3.oblique)
small intestine - two layers of smooth (1.circular 2.longitudial)
large intestine - outer longitudinal (incomplete) internal and external anal sphincters
a. esophagus - outer coat - fibrous connective tissue
c. small intestine - outer coat is visceral peritoneum
d. large intestine
what is the function of the mouth
grinding, mixing, prehension, defense, salivation
what are the 4 main parts of the mouth
teeth, tongue, salivary glands, pharynx
what makes up the tongue
muscle covered by stratified squamous epithelium
what are the 4 types of papillae
what are the 3 parts of the salivary glands
parotid - serous
submandibular - mixed
sublingual - mixed
what is the pharynx
common passageway for food and air
pharynx to stomach
dorsal to trachea
enters stomach s cardiac sphincter
lined with stratified squamous epithelium
what am I?
what are the 2 functions of the esophagus?
passageway for into the stomach and mouth
esophagus musculature of a horse
striated - upper 2/3
smooth - lower 1/3
esophagus musculature of a pig
striated to diaphragm
esophagus musculature of a dog and ruminant
striated to stomach
internal folds - rugae
what am I?
what are the functions of a non-ruminant stomach?
what are the external parts of a non-ruminant stomach?
cardi - entrance
fundus - left and above opening of esophagus
body - central
pylorus - lower
simple columnar epithelium
two and a half inches wide and 5 feet long (man)
ileum enters large intestine at ileo-ceco-colic junction
what am I?
what are the functions of the large intestine?
absorption of water
elimination of waste
what are the 6 segments of the large intestine?
describe the cecum
small in man, large in horse, microorganisms present
describe the appendix
vestigial rudiment of cecum in man
describe the colon
many Goblet cells; ascending, transverse, descending colon
describe the rectum
many Goblet cells; last 8 inches of colon
describe the anal canal
terminal inch of rectum; mucous lining arranged in folds called columns; artery and vein supply each column; hemorrhoids are enlargements of the vein
describe the anus
exterior opening; 2 sphincters surround anal opening
describe the internal and external muscles of the anus
internal - smooth muscle
external - striated muscle
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