Anatomy and Physiology For Dummies by Erin Odya & Maggie A. Norris

Author:Erin Odya & Maggie A. Norris [Odya, Erin]
Language: eng
Format: azw3, mobi, epub
ISBN: 9781119345237
Publisher: Wiley
Published: 2017-03-08T05:00:00+00:00

A low blood glucose level stimulates the pancreas to secrete insulin’s partner glucagon, which pulls glucose from cells where it’s stored and releases it into the blood. In particular, it stimulates the liver to break down glycogen, the storage form of glucose, leading to more sugar in the blood. Glucagon keeps the metabolic fires burning at a steady level.

Stomaching another gland

Yes, the stomach is a key organ in digestion (Chapter 11 covers the digestive system in detail), but it also secretes hormones that are used during digestion, making it a gland. The stomach secretes a group of hormones called gastrins. Many types of gastrin molecules — small, medium, and large — are responsible for stimulating the secretion of gastric acid. Gastrins also control the sphincter muscle at the bottom of the esophagus, thereby controlling when food can be passed into the stomach. Other cells in the stomach produce the hormone ghrelin, which targets the brain to stimulate the hunger.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.