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5.0
BIO253 quiz 1 Questions with Detailed Verified
Answers (100% Correct Answers) /Already Graded
A+
Quiz: what is the primary function of the digestive system
Ans: dismantling and reassembling of food, production of enzymes and
hormones, storage and synthesis of vitamins, collection and elimination of
wastes
Quiz: what is the first layer of tissue called and made of in the GI
tract
Ans: mucosa- epithelial tissue (simple columnar)
Quiz: what is the second layer of tissue called and made of in the GI
tract
Ans: submucosa-connective tissue
Quiz: what is the third layer of tissue called and made of in the GI
tract
Ans: circular muscular layers (longitudial and oblique)- muscle tissues
Quiz: what is the fourth layer of tissue called and made of in the GI
tract
Sunday, 02 March 2025
,Ans: paritoneum (visceral and parietal)- serosa
Quiz: what is third spacing
Ans: any fluid in the peritoneal cavity
Quiz: what is a function of a healthy GI tract epithelial lining
Ans: can resist the effects of its own digestive secretions
Quiz: what absorbs the fats/how do they get in
Ans: lacteal
Quiz: what are the three GI hormones
Ans: CCK, secretin, gastrin
Quiz: what does CCK do
Ans: comes from gall bladder, stimulates contraction of the gall bladder
stimulates secretion of pancreatic enzymes, slows gastric emptying (bits of
chyme released into duodenum at a time)
Quiz: what does secretin do
Examstudy - Stuvia US
,Ans: (S and M cells from small intestine secrete this) stimulates secretion of
bicarbonate-containing solution by pancreas and liver (stomach pH is 2/very
acidic, so bicarb neutralizes the chyme)
Quiz: what does gastrin do
Ans: stimulates secretion of gastric acid (HCL from parietal cells) and
pepsinogen (chief cells) (not active, becomes pepsin), increases gastric
blood flow, stimulates gastric smooth muscle contraction, stimulates growth
of the gastric, small intestine, and colon mucosa, released when you
see/smell food, comes from G cells
Quiz: what does bile do
Ans: emulsifies fats
Quiz: what are the requirements for digestion
Ans: hydrolysis, enzyme cleavage, fat emulsification
Quiz: what do parietal cells release
Ans: gastric acid (HCL)
Quiz: what do chief cells release
Ans: pepsinogen
Examstudy - Stuvia US
, Quiz: what does the liver do
Ans: make bile
Quiz: what does the gall bladder do
Ans: store bile
Quiz: what do brunner glands do
Ans: produce mucous
Quiz: how is the acid secretion stimulated
Ans: hormones gastrin and histamine and acetylcholine- parasympathetic
NS/ rest and digest, vagus nerve here, stimulates digestion
Quiz: why are NSAIDs bad for digestion
Ans: they block prostaglandins synthesis, which inhibit acid secretions and
stimulate mucous production. This will cause bleeds because there is less
protective mucous and more acid
Quiz: how do they -ozle meds work? (ex. omeprazole)
Ans: proton pump inhibitor- less protons available to make HCL= less gastric
acid
Examstudy - Stuvia US
In today's fast-paced educational landscape, students need reliable resources to excel in their studies.
5.0
BIO253 quiz 1 Questions with Detailed Verified
Answers (100% Correct Answers) /Already Graded
A+
Quiz: what is the primary function of the digestive system
Ans: dismantling and reassembling of food, production of enzymes and
hormones, storage and synthesis of vitamins, collection and elimination of
wastes
Quiz: what is the first layer of tissue called and made of in the GI
tract
Ans: mucosa- epithelial tissue (simple columnar)
Quiz: what is the second layer of tissue called and made of in the GI
tract
Ans: submucosa-connective tissue
Quiz: what is the third layer of tissue called and made of in the GI
tract
Ans: circular muscular layers (longitudial and oblique)- muscle tissues
Quiz: what is the fourth layer of tissue called and made of in the GI
tract
Sunday, 02 March 2025
,Ans: paritoneum (visceral and parietal)- serosa
Quiz: what is third spacing
Ans: any fluid in the peritoneal cavity
Quiz: what is a function of a healthy GI tract epithelial lining
Ans: can resist the effects of its own digestive secretions
Quiz: what absorbs the fats/how do they get in
Ans: lacteal
Quiz: what are the three GI hormones
Ans: CCK, secretin, gastrin
Quiz: what does CCK do
Ans: comes from gall bladder, stimulates contraction of the gall bladder
stimulates secretion of pancreatic enzymes, slows gastric emptying (bits of
chyme released into duodenum at a time)
Quiz: what does secretin do
Examstudy - Stuvia US
,Ans: (S and M cells from small intestine secrete this) stimulates secretion of
bicarbonate-containing solution by pancreas and liver (stomach pH is 2/very
acidic, so bicarb neutralizes the chyme)
Quiz: what does gastrin do
Ans: stimulates secretion of gastric acid (HCL from parietal cells) and
pepsinogen (chief cells) (not active, becomes pepsin), increases gastric
blood flow, stimulates gastric smooth muscle contraction, stimulates growth
of the gastric, small intestine, and colon mucosa, released when you
see/smell food, comes from G cells
Quiz: what does bile do
Ans: emulsifies fats
Quiz: what are the requirements for digestion
Ans: hydrolysis, enzyme cleavage, fat emulsification
Quiz: what do parietal cells release
Ans: gastric acid (HCL)
Quiz: what do chief cells release
Ans: pepsinogen
Examstudy - Stuvia US
, Quiz: what does the liver do
Ans: make bile
Quiz: what does the gall bladder do
Ans: store bile
Quiz: what do brunner glands do
Ans: produce mucous
Quiz: how is the acid secretion stimulated
Ans: hormones gastrin and histamine and acetylcholine- parasympathetic
NS/ rest and digest, vagus nerve here, stimulates digestion
Quiz: why are NSAIDs bad for digestion
Ans: they block prostaglandins synthesis, which inhibit acid secretions and
stimulate mucous production. This will cause bleeds because there is less
protective mucous and more acid
Quiz: how do they -ozle meds work? (ex. omeprazole)
Ans: proton pump inhibitor- less protons available to make HCL= less gastric
acid
Examstudy - Stuvia US
