题目内容

The characteristics of gastric secretion in the cephalic phase are ()

A. High acidity, especially low pepsin content
B. Low acidity, especially high pepsin content
C. High acidity and stomach protein content
D. Low acidity and pepsin content
E. Low secretion and low digestion

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The specific movement form of the stomach is ()

A. Tense contraction
B. Receptive relaxation
C. Peristalsis
D. Segmental movement
E. Group peristalsis

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Misrepresentation of gastric emptying ()

A. Gastric peristalsis is the power of gastric emptying
B. Vagal excitation promotes gastric emptying
C. Liquid food empties faster than solid food
D. Sugar food empties fastest, protein slowest
E. The mixed food is completely emptied 6 hours after eating

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The site that can promote vitamin B12 is ()

A. Duodenum
B. Jejunum
C. Ileum
D. Upper colon
E. Rectum

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Gastric mucosa often in high acid and pepsin environment will not digest itself, because of the existence of self-protection mechanism, the main mechanism is ()

A. Mucus barrier
B. Mucus cell protection
C. Bicarbonate barrier
D. Mucus bicarbonate barrier
E. mucilage gel layer protection

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The characteristics of gastric secretion in the cephalic phase are ()

A. High acidity, especially low pepsin content B. Low acidity, especially high pepsin content C. High acidity and stomach protein content D. Low acidity and pepsin content E. Low secretion and low digestion

The specific movement form of the stomach is ()

Misrepresentation of gastric emptying ()

The site that can promote vitamin B12 is ()

Gastric mucosa often in high acid and pepsin environment will not digest itself, because of the existence of self-protection mechanism, the main mechanism is ()

A. High acidity, especially low pepsin content
B. Low acidity, especially high pepsin content
C. High acidity and stomach protein content
D. Low acidity and pepsin content
E. Low secretion and low digestion