MED TERM Digestive System

Breakdown of organic substances in the body is referred to as:

• catabolism

• anabolism

• metabolic turnover

• nutrient pool

Tags

NGSS.HS-LS2-5

Ridges and folds in the GI tract function to

• aid peristalsis

• increase surface area

• prevent rupture

• retain fluids

Nerve activities is MOST likely to stimulate digestive functions:

• parasympathetic

• somatic

• sympathetic

• reflex

Length of the entire digestive tract

• 1 meter

• 2 meters

• 10 meters

• 20 meters

Tags

NGSS.MS-LS1-3

The swallowing center is located in the:

• pituitary gland

• medulla oblongata

• hypothalamus

• pons

A full stomach can hold about:

• 0.5 liters

• 1-1.5 liters

• 3-5 liters

• 10 liters

HCL is secreted by:

• parietal cells

• enterogastric cells

• chief cells

• oblique cells

Tags

NGSS.HS-LS1-3

Materials that cannot enter the blood directly from the intestine enter the:

• larynx

• hepatic portal

• lacteal

• venules

Small intestine is responsible for ______ of absorption.

• 100

• 90

• 80

• 60

Most chemical digestion and absorption occurs in the:

• illeum

• doudenum

• jejunum

• stomach