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Cephalic phase

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rolejawi's version from 2015-06-10 04:02

Section

Question Answer
Phase 1sight, taste, smell thought of food, tactile sensation in mouth stimulates medulla oblongata
phase 2impluses via vagus nerves (parasympathetic) to stomach -> eneteric plexus neurons activated
Phase 3stimulate secretion HCl & pepsin (parietal and chief cells), also stimulate release of hormone gastrin & histamine (paracrine)
Phase 4Gastrin travels via circulation back to stomach -> gastrin and histamine stimulate further secretion of HCl and pepsin
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