Digestive System Review

Check all structures which are considered a part of the alimentary canal.

• esophagus

• liver

• small intestine

• stomach

• gallbladder

Mashing with teeth and stomach churning are examples of

• chemical digestion

• peristalsis

• mechanical digestion

• propulsion

True or False: Both mechanical and chemical digestion take place in the stomach.

• True

• False

Tags

NGSS.MS-LS1-7

In the picture, the large organ found in red (which is the heaviest internal organ) is the

• stomach

• gallbladder

• liver

• large intestine

Tags

NGSS.MS-LS1-3

In the picture, the small green structure, which is responsible for storing bile in humans, is the

• liver

• pancreas

• gallbladder

• epiglottis

Tags

NGSS.MS-LS1-3

The small intestine is lined with villi which are responsible for

• absorption

• chemical breakdown

• peristalsis

• propulsion

Most of the excess water in food is absorbed in the ____ before undigested byproduct is packaged as waste.

• stomach

• liver

• large intestine

• pancreas

Which of the following are functions of the liver (choose all that apply)?

• stores bile to be released between meals

• pulls nutrients out of blood

• produces bile from toxins

• produces enzymes and hormones

• filters toxins out of blood

If the pancreas were to stop functioning, what could be the result?

• loss of absorption of water from food

• loss of mechanical breakdown of food

• significant decrease in production of digestive enzymes

• inability to store bile to release between meals

Tags

NGSS.MS-LS1-7

This image shows the digestive process ____, which helps to move food through the GI tract via smooth muscle contraction.

• ingestion

• segmentation

• peristalsis

• absorption