1) Vitamin B12 to be absorbed it must bind to protein known as intrinsic factor.
Anonymous Quiz
94%
T
6%
F
2) The absorption of vitamin B12 occurs in ------ portion of the small intestine.
Anonymous Quiz
24%
a) duodenum
68%
b) illum
8%
c) jejunum
4) ------ absorbs 80% of water.
Anonymous Quiz
18%
a) Stomach
69%
b) Small intestine
12%
c) Large intestine
👍2
6) Most of the iron in the diet is in the form of ferrous while the ferric form is absorbed.
Anonymous Quiz
39%
T
61%
F
7) Some of Fe+2 is stored in ------ while the remainder is transported out of the enterocytes by ------
Anonymous Quiz
34%
a) ferroportin 1, ferritin
66%
b) ferritin , ferroportin 1
8)The gastrointestinal tract has its own local nervous system a division of the somatic
nervous system known as the enteric nervous system.
nervous system known as the enteric nervous system.
Anonymous Quiz
50%
T
50%
F
9) In gastrointestinal tract ----- influences the smooth muscle activity while ----- influence the secretory activity.
Anonymous Quiz
30%
a) submucosal plexus , mynetric plexus
70%
b) mynetric plexus, submucosal plexus
10) The CNS can't influence the motility and secretory activity of the gastrointestinal tract.
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30%
T
70%
F
1) Which of the following initiate the cephalic phase?
Anonymous Quiz
30%
a) Acidity.
30%
b) Amino acids.
40%
c) Smell.
2) The response to stimuli in gastric phase is mediated by releasing of gastrin hormone.
Anonymous Quiz
74%
T
26%
F
3) The pepsinogen enzyme secreted in ----- portion of the stomach.
Anonymous Quiz
23%
a) fundus
26%
b) body
13%
c) antrum
38%
d) both a) and b)
5) ------ secrete intrinsic factor.
Anonymous Quiz
18%
a) Chief cells
56%
b) Parietal cells
26%
c) Enteroendocrine cells
7) ------ pumps hydrogen ions into the lumen of the stomach.
Anonymous Quiz
54%
a) H/K-ATPase
46%
b) H/Na-ATPase
8) ------ play role in regulating acid secretion by the stomach.
Anonymous Quiz
39%
a) Gastrin
11%
b) Histamine
13%
c) Somatostain
37%
d) All of them
10) The antrum portion of the stomach is responsible for mixing and grinding of the stomach contents.
Anonymous Quiz
70%
T
30%
F