2 Response To Gastrointestinal Tract To A Meal

Question 1

What does reclaimed mean

Answer 1

Reabsorbed back into circulation

Question 2

4 major functions of gut

Answer 2

Secretion
Digestion
Absorption
Motility

Question 3

What is one of the most important sphincters

Answer 3

Lower esophageal sphincters

Question 4

What does nerve causes receptive relaxation in the proximal stomach

Answer 4

Vagus nerve

Question 5

What area does all the mixing and grinding in the stomach

Answer 5

Antrum and pelorus

Question 6

What area is the reservoir of the stomach

Answer 6

Fundus and body

Question 7

What keeps food particles from passing out of the stomach

Answer 7

Pylorus

Question 8

What are the 3 phases of gastric acid secretion

Answer 8

Cephalic
Gastric
Intestinal

Question 9

What is the major regulator of your response to a meal

Answer 9

Brain

Question 10

What produces pepsinogin

Answer 10

Chief cell

Question 11

What cell produces acid in the stomach

Answer 11

Parital

Question 12

What are some characteristics of pepsinogin

Answer 12

Secreted by Chief cell inactive form

When enters stomach activates and becomes pepsin which breaks down food

Question 13

What does pepsin break down

Answer 13

Proteins

Question 14

Endocrine

Answer 14

Hormone produced, goes through circulation to target cell

Uses receptors

Question 15

Neurocrine

Answer 15

Uses acetylcholine

Question 16

Paracrine

Answer 16

Goes to nearby cells

Question 17

What does parietal cell produce

Answer 17

HCl

Question 18

What is important about the triggering mechanism of parietal cell

Answer 18

There are 3 ways to stimulate it as back ups

Question 19

What part of the stomach produces secretions

Answer 19

Glandular part

Question 20

What part of the stomach in the horse is more susceptible to ulcers

Answer 20

Nonglandular

Question 21

Why does the nonglandular part of the stomach get ulcers

Answer 21

Mucus layer produces bicarbonate to counter the acid. Nonglandular part of the stomach does not have bicarbonate

Question 22

What stops the production of acid

Answer 22

Negative feedback by acid to inhibit gastrin release

Acid stimulates somatostatin to block G cell

Question 23

What causes gastric emptying

Answer 23

Intragastric pressure exceeds duodenal and pyloric pressure.

Influenced by physical and chemical composition of a meal

Question 24

What is CCK released in response to

Answer 24

amino acids and fatty acids

Question 25

What does CCK do

Answer 25

Inhibit gastric emptying

Question 26

What must the tonicity of a meal be before entering small intestine

Answer 26

Isotonic | Regulated by duodenum

Question 27

What does the pancreas do

Answer 27

Produces enzymes

Question 28

What are the two parts of the pancreas

Answer 28

Exocrine: into duodenum, digestive function Endocrine: into blood, not as important for class

Question 29

Why are enzymes secreted in an inactive form

Answer 29

Keeps organs from digesting themselves before the enzyme can reach the stomach

Question 30

Main function of the gastrointestinal tract

Answer 30

Extract water, nutrients, and electrolytes and expel undirected residue as feces