WorksheetsDigestive System Essay #1
Total questions: 27
Worksheet time: 24mins
Mucous cells trap a layer of (a) rich fluid to protect stomach cells
The gastric pit produces [alkaline/acidic] mucus
(a)
Epithelial cells are joined by _______ _______
(a)
(a) produce acidic mucus
Parietal cells secrete __________ and __________
(separate answers using commas)
(a)
After CO2 + H2O + CA --> H2CO3 --> H+ + HCO3-,
Bicarbonate will be ejected through the [apical/basolateral] side
(a)
HCO3- is transported with _____ _______
(a)
H+ is pumped out through the [apical/basolateral] side
(a)
H+ is pumped out using _____ _____
(a)
(a) is released by G cells
Na+/K+ ATPase on the [apical/basolateral] side to prevent H+ repulsion in lumen and keep K+ low
(a)
Intracellular Cl- will follow H+ into the (a) using Cl- leaky channels on [apical/basolateral] membrane.
(separate answers using commas)
Chief cells produce _______ and _______
(separate answers using commas)
(a)
(a) activates pepsinogen --> pepsin
Identify the hormone:
_______ is secreted due to presence of food in stomach and will stimulate gastric glands and motility
histamine
gastrin
serotonin
somatostatin
Identify the hormone:
_______ acts locally as a paracrine to increase gastric activity
histamine
gastrin
serotonin
somatostatin
Identify the hormone:
_______ is released due to stimulation of sympathetic nerve fibers to inhibit gastric secretion
histamine
gastrin
serotonin
somatostatin
Identify the hormone:
_______ is released when food is in the stomach / due to Ach secretion; stimulates parietal cells to increase HCl secretion and stimulate gastric emptying
histamine
gastrin
serotonin
somatostatin
Match the following:
longitudinal layer of muscularis externa --> __________
peristalsis
segmentation
push food into small intestine
all of the above
Match the following:
circular layer of muscularis externa --> __________
peristalsis
segmentation
push food into small intestine
all of the above
Match the following:
oblique layer of muscularis externa --> __________
peristalsis
segmentation
push food into small intestine
all of the above
Identify the part of the stomach:
(a) will secrete alkaline mucus
The fundus will secrete (a) to stimulate appetite and regulate insulin action
Identify the part of the stomach:
the (a) of the stomach secretes pepsin with chief cells for protein digestion
Identify the part of the stomach:
the (a) controls stomach emptying into the duodenum
Identify the part of the stomach:
the (a) secretes mucus with its mucus cells and several hormones with enteroendocrine cells
Chemoreceptors of the pylorus will activate (a)
