GI Part 2- 1 Flashcards
What gastric secretion is:
Deposited close to blood vessels, and then blood carries the substances to their target tissues?
Endocrine secretions
What gastric secretion is:
Diffuse through the interstitial space to affect other cells?
Paracrine substances
What gastric secretion is:
Given cell regulate functions of the same cell?
Autocrine substances
What gastric secretion is:
Refers to secretions by enteric neurons that affect muscle cells, glands, and blood cells?
Neurocrine
What must be:
Secreted by one cell and affect another
Transported in the blood
Stimulated by food and its action must be mimicked by a synthetic analog molecule
Hormone
Besides the doudenum and jejunum, where is CCK found?
Ileum
Besides the doudenum, where is gastrin found?
Antrum
What two sections of the small intestine are secretin, GIP, and motilitn found?
Duodenum and jejunum
What GI hormone has these characteristics:
Stimulates bicarbonate secretion and inhibits acid secretion
Stimulus= acid, fat, protein
Secretin
What GI hormone has these characteristics:
Stimulates acid secretion
Stimulus = protein, high pH
Gastrin
What GI hormone has these characteristics:
Stimulates pancreatic enzyme secretion and gallbladder CONTRACTION
Stimulus= fats and proteins
CCK
What GI hormone has these characteristics:
Inhibits gastric secretion and stimulates insulin secretion
Stimulus = fats and glucose
GIP
What GI hormone has these characteristics:
Induction of intestinal motility during fasting
Stimulus = Ach
Motilin
What 2 glandular zones of the stomach has mucus?
Cardias and pylorus
What glandular zone of the stomach had HCl and enzymes?
Fundus
