Week 8 Knowledge Check
A - ANS The stomach cell type that secretes hydrochloric acid is the:
a) Parietal cell
b) Intrinsic cell
c) Chief cell
d) Goblet cell
e) Enteroendocrine cell
B - ANS Intrinsic factor is necessary for the absorption of :
a) Water
b) Vitamin B12
c) Carbohydrates
d) Fats
e) Proteins
C - ANS Which is the SHORTEST subdivision of the small intestine?
a) Fundus
b) Jejunum
c) Duodenum
d) Ileum
e) Body
B - ANS The pancreas secretes water & bicarbonate to:
a) Increase duodenal acidity
b) Decrease duodenal acidity
c) Increase the rate of water expulsion from the body
d) Break down amylase
e) Cleanse brush border enzymes
D - ANS The uninhibited movement of fluids & foods is/are stopped by:
a) Longitudinal muscle ridges
b) Torniquets
c) Tinctures
d) Sphincters
e) Ducts
,C - ANS Which are three subdivisions of the large intestine?
a) Appendicular, Caecum, & Pyloric regions
b) Oral, Gastric, & Cephalic regions
c) Ascending, Transverse & Descending regions
d) Duodenum, Jejunum, & Ileum
e) Caecum, Body & Sigmoid
B - ANS What is the fundamental meaning of 'Chemical digestion'?
a) Addition of fats to other particles to allow easier disposal
b) Catabolic processes that breaks down large food molecules to monomers
c) Uptake of carbohydrates into the Stomach crypts for processing
d) Creation of more complex molecules inside the intestinal cells
e) Grinding of large particles into smaller ones
D - ANS The mechanical methods used to move material in the lumen of the main part of the
GIT are:
a) Secretion & Storage
b) Absorption & Defecation
c) Pushing & Sequestration
d) Segmentation & Peristalsis
e) Grinding & Swirling
C - ANS In order to prevent self-digestion of the pancreas, activation of pancreatic proteases
occurs in the: stomach.
a) pancreas.
b) liver.
c) duodenum.
d) gallbladder.
C - ANS During deglutition, the bolus passes into the stomach from the esophagus through the:
a) ileocecal valve.
b) urethral sphincter.
c) gastroesophageal sphincter.
d) pyloric sphincter.
e) esophageal sphincter.
E - ANS During the intestinal phase of gastric regulation:
a) the gastroenteric reflex reduces stomach activity.
b) hormones reduce chief cell activity.
, c) secretin causes more HCl release.
d) the enterogastric reflex is turned off.
e) the stomach is initially stimulated and later inhibited.
A - ANS Protective collections of lymphocytes and macrophages occur in:
a) the Peyer's patches.
b) the intestinal crypts.
c) the muscularis externa.
d) the muscularis mucosae.
e) the gastric pits.
C - ANS What is the main organic molecule digested in the stomach?
a) Nucleic acids
b) Carbohydrates
c) Proteins
d) Lipids
e) Sugars
E - ANS The propulsive function that occurs in the esophagus is called:
a) segmentation.
b) swallowing.
c) defecation.
d) ingestion.
e) peristalsis.
D - ANS Which of the following is a characteristic of the large intestine?
a) It has villi.
b) It provides no absorptive function.
c) It is the site for acid neutralization.
d) It contains a large number of bacteria.
e) Is longer than the small intestine.
E - ANS Which regulatory chemical stimulates gastric gland activity and motility?
a) Secretin
b) Histamine
c) CCK
d) Vasoactive peptide
e) Gastrin
A - ANS The stomach cell type that secretes hydrochloric acid is the:
a) Parietal cell
b) Intrinsic cell
c) Chief cell
d) Goblet cell
e) Enteroendocrine cell
B - ANS Intrinsic factor is necessary for the absorption of :
a) Water
b) Vitamin B12
c) Carbohydrates
d) Fats
e) Proteins
C - ANS Which is the SHORTEST subdivision of the small intestine?
a) Fundus
b) Jejunum
c) Duodenum
d) Ileum
e) Body
B - ANS The pancreas secretes water & bicarbonate to:
a) Increase duodenal acidity
b) Decrease duodenal acidity
c) Increase the rate of water expulsion from the body
d) Break down amylase
e) Cleanse brush border enzymes
D - ANS The uninhibited movement of fluids & foods is/are stopped by:
a) Longitudinal muscle ridges
b) Torniquets
c) Tinctures
d) Sphincters
e) Ducts
,C - ANS Which are three subdivisions of the large intestine?
a) Appendicular, Caecum, & Pyloric regions
b) Oral, Gastric, & Cephalic regions
c) Ascending, Transverse & Descending regions
d) Duodenum, Jejunum, & Ileum
e) Caecum, Body & Sigmoid
B - ANS What is the fundamental meaning of 'Chemical digestion'?
a) Addition of fats to other particles to allow easier disposal
b) Catabolic processes that breaks down large food molecules to monomers
c) Uptake of carbohydrates into the Stomach crypts for processing
d) Creation of more complex molecules inside the intestinal cells
e) Grinding of large particles into smaller ones
D - ANS The mechanical methods used to move material in the lumen of the main part of the
GIT are:
a) Secretion & Storage
b) Absorption & Defecation
c) Pushing & Sequestration
d) Segmentation & Peristalsis
e) Grinding & Swirling
C - ANS In order to prevent self-digestion of the pancreas, activation of pancreatic proteases
occurs in the: stomach.
a) pancreas.
b) liver.
c) duodenum.
d) gallbladder.
C - ANS During deglutition, the bolus passes into the stomach from the esophagus through the:
a) ileocecal valve.
b) urethral sphincter.
c) gastroesophageal sphincter.
d) pyloric sphincter.
e) esophageal sphincter.
E - ANS During the intestinal phase of gastric regulation:
a) the gastroenteric reflex reduces stomach activity.
b) hormones reduce chief cell activity.
, c) secretin causes more HCl release.
d) the enterogastric reflex is turned off.
e) the stomach is initially stimulated and later inhibited.
A - ANS Protective collections of lymphocytes and macrophages occur in:
a) the Peyer's patches.
b) the intestinal crypts.
c) the muscularis externa.
d) the muscularis mucosae.
e) the gastric pits.
C - ANS What is the main organic molecule digested in the stomach?
a) Nucleic acids
b) Carbohydrates
c) Proteins
d) Lipids
e) Sugars
E - ANS The propulsive function that occurs in the esophagus is called:
a) segmentation.
b) swallowing.
c) defecation.
d) ingestion.
e) peristalsis.
D - ANS Which of the following is a characteristic of the large intestine?
a) It has villi.
b) It provides no absorptive function.
c) It is the site for acid neutralization.
d) It contains a large number of bacteria.
e) Is longer than the small intestine.
E - ANS Which regulatory chemical stimulates gastric gland activity and motility?
a) Secretin
b) Histamine
c) CCK
d) Vasoactive peptide
e) Gastrin
