Digestive System and GI Tract- Definitions

Question 1

Cephalic Phase

Answer 1

Digestive reflexes triggered by stimuli received in the brain, such as the smell or sight of food

Question 2

Chyme

Answer 2

a soupy substance produced by digestion in the digestive tract

Question 3

Deglutition

Answer 3

swallowing

Question 4

Digestion

Answer 4

chemical and mechanical breakdown of foods into smaller units that can be absorbed

Question 5

Digestive Process

Answer 5

the four main processes that occur in the digestive system; digestion, secretion, absorption and motility

Question 6

ENS

Answer 6

Enteric Nervous System: neurons in the wall of the gastrointestinal tract that are capable of sensing and integrating information and carrying out a response without input from the CNS

Question 7

Gastric Phase

Answer 7

processes occurring in the stomach during digestion

Question 8

GI Layers

Answer 8

the basic structure of the stomach and intestines consisting of four distinguishable layers: mucosa, submucosa, muscularis externa, and the serosa

Question 9

GI Peptides

Answer 9

hormones, peptides and cytokines that help to regulate GI function

Question 10

Long Reflex

Answer 10

a GI reflex that is integrated in the CNS rather than the ENS

Question 11

Mastication

Answer 11

Chewing

Question 12

Peptic Ulcer

Answer 12

open sores that develop on the inside lining of the stomach or upper portion of the small intestine

Question 13

Salivary Glands

Answer 13

glands in the mouth that produce watery enzyme and mucous secretions

Question 14

Short Reflex

Answer 14

a GI reflex that is integrated within the ENS