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UTA A&P II EXAM 3 STUDY QUESTIONS And Answers $9.89
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UTA A&P II EXAM 3 STUDY QUESTIONS And Answers
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Peristalsis - ANS the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wavelike movements that push the contents of the canal forward. uvula - ANS small projection hanging from the back middle edge of the soft palate mesenterie...

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  • September 24, 2024
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UTA A&P II EXAM 3 STUDY QUESTIONS
And Answers
​




Peristalsis - ANS the involuntary constriction and relaxation of the muscles of the intestine
or another canal, creating wavelike movements that push the contents of the canal forward.

uvula - ANS small projection hanging from the back middle edge of the soft palate

mesenteries - ANS connective tissue sheets that loosely suspend the stomach and
intestines from the abdominal wall.

provide access route for blood vessels, nerves, and lymphatic vessels to and from digestive
tract

pylorus - ANS portion of the stomach that connects to the small intestine

greater omentum - ANS part of the peritoneum attached to the stomach and to the colon
and covering the intestines

plicae circulares - ANS folds of the small intestine wall

pairs of salivary glands - ANS parotid (produce amylase), sublingual (produce mucus),
submandibular(secrete buffers, glycoproteins and salivary amylase)

Which salivary gland secretes a watery mixture rich in salivary amylase and bicarbonate ion? -
ANS parotid

Functions of the digestive system - ANS secretion, absorption, digestion (chemical and
mechanical), ingestion, and excretion

Layers of the intestinal wall - ANS 1. Mucosa--epithelium and lamina propia of areolar
tissue
2. Submucosal layer--irregular connective tissue
3. Muscularis externa--smooth muscle
4. Serosa (or adventitia if retroperitoneal) --serous membrane

What is between the layer of circular and longitudinal muscle in the muscularis externa? - ANS
myenteric plexus

, What layer are the sensory nerve cells, parasympathetic ganglia, and sympathetic
postganglionic fibers? - ANS submucosa in submucosal plexus

What layer alters the shape of the intestinal lumen and moves epithelial pleats and folds? - ANS
muscularis mucosae

Which layer contains the lamina propria and mucous epithelium? - ANS mucosa

Which layer are large blood vessels and lymphatics are found in? - ANS submucosa

What is the function of pepsin? - ANS protein digestion

where is pepsin secreted? - ANS pepsinogen is secreted by chief cells. pepsinogen is later
converted to pepsin in the stomach due to the highly acidic environment

what part of the stomach connects to the duodenum? - ANS pylorus

which part of the stomach connects to the esophagus? - ANS cardia

What are the the prominent ridges in the lining of the empty stomach? - ANS ruggae

function of chief cells - ANS secrete pepsinogen

Function of G cells - ANS secrete gastrin

function of gastrin - ANS stimulate parietal cells to secrete HCL.

stimulates contractions of gastric walls

function of GIP - ANS insulin release from the pancreas

function of secretin - ANS Increase HCO3 production by pancreas
Decrease gastric acid secretion
Increase bile secretion and buffers by liver and pancreas

function of lacteals - ANS absorb digested fat and deliver fatty lymph to the blood

Which structures enhance the absorptive effectiveness of the small intestine? - ANS
microvilli

function of cholecystokinin - ANS 1) accelerates pancreatic production and secretion of
digestive enzymes
2) relaxes hepatopancreatic sphincter and gallbladder which ejects bile and pancreatic juice into
duodenum

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