In the Cephalic Phase, Secretion of Acid by Parietal Cells

question 24

Multiple Choice

In the cephalic phase, secretion of acid by parietal cells is stimulated by

• A) Vagal afferents directly stimulating parietal cells with acetylcholine
• B) Vagal afferents stimulating parietal cells by releasing GRP onto G cells
• C) Vagal afferents stimulating ECL cells to release histamine onto parietal cells
• D) All of the above
• E) Only A and B

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Definitions:

Pollinators

Animals or insects that transfer pollen from one flower to another, facilitating plant fertilization.

Bryophytes

Term used to identify plants that do not have vascular tissue. Includes the liverworts, hornworts, and mosses.

Vascular Tissue

The complex tissue in plants responsible for conducting water, minerals, and nutrients throughout the plant.

Ferns

are a group of plant species that reproduce via spores and have neither seeds nor flowers, characterized by large, divided leaves.