digestive system review

Which of the following digestive regions is responsible for the propulsion of materials into the esophagus?

• stomach

• salivary glands

• gallbladder

• pharynx

The active process that occurs when materials enter the digestive tract via the mouth is ___.

• absorption

• ingestion

• secretion

• excretion

Which of the following is NOT a function of saliva?

• lubrication of food

• initial digestion of carbohydrates

• lubrication of the mouth

• initial digestion of proteins

Crushing, mashing, and grinding of food are best accomplished by the ___.

• tongue

• molars

• incisors

• canines

The pyloric sphincter is a valve that controls the movement of food between the stomach and the small intestine.

• true

• false

Digestion refers to the mechanical and chemical breakdown of food.

• True

• False

The salivary enzyme amylase functions to digest

• fats.

• proteins.

• carbohydrates.

• all of the above.

Peristalsis occurs in the digestive tract

• in the stomach, small intestine, and large intestine only.

• in the small and large intestine only.

• in the stomach and small intestine only.

• from the pharynx to the anus.

Tags

NGSS.MS-LS1-7

If the liver was damaged, which of the following would be difficult to digest?

• carbohydrates

• lipids

• proteins

• all of these

One of the main functions of the large intestine is to

• secrete digestive enzymes.

• break down hemoglobin.

• regulate the release of bile.

• reabsorb water from chime.