The Gastrointestinal System - Major Organs of the GI System Pt 2

Question 1

Esophagus

Answer 1

a 10- to 12-inch long tube that extends from the pharynx to the stomach

Question 2

Muscle movements in the esophagus called ____ move the food down into the stomach once it enters from the pharynx into the esophagus

Answer 2

peristalsis

Question 3

Sometimes, food can irritate your esophagus and cause the esophagus muscles to ____

Answer 3

contract and expel food

Question 4

The lower esophageal sphincter maintains enough pressure to prevent stomach content to ____ into the esophagus

Answer 4

reflux back

Question 5

The esophagus empties food straight into the ____

Answer 5

stomach

Question 6

The stomach has three parts:

Answer 6

• fundus
• body
• pylorus (or antrum)

Question 7

Fundus

Answer 7

the broad portion near the esophagus

Question 8

Body

Answer 8

the central portion of the stomach

Question 9

Pylorus (or antrum)

Answer 9

the lower, narrow section that joins with the small intestine

Question 10

When empty, the stomach is about ____ long with the widest part measuring about ____ around

Answer 10

12 inches long with the widest part measuring about six inches around

Question 11

On the outside of the stomach is a mucosa, a membrane that ____

Answer 11

lines various cavities in the body and surrounds internal organs

Question 12

The mucosa is composed of ____

Answer 12

layers of epithelial cells surrounding a layer of loose connective tissue

Question 13

The stomach’s mucosa folds into structures called ____, or a series of ridges

Answer 13

rugae

Question 14

As the stomach fills up, the rugae unfold so the ____

Answer 14

stomach can stretch and smooth out