The Digestive System Ch 24

The chemical breakdown of food into small organic fragments that can be absorbed by the digestive epithelium is __________.

• digestion

• ingestion

• secretion

• mechanical processing

Which of the following is NOT produced by the gastric glands in the stomach of an adult?

• rennin

• HCl

• pepsinogen

• intrinsic factor

Cuspids are cutting or clipping teeth.

• True

• False

Strong contractions from the transverse colon to the rest of the large intestine that move the contents of the colon toward the sigmoid colon are called __________.

• mass movements

• pendular movements

• segmentation

• defecation

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

• bicuspids

• incisors

• cuspids

• eyeteeth

Which of the following is NOT a function of hydrochloric acid in the stomach?

• breaking down disaccharides into monosaccharides

• facilitating protein digestion

• killing microorganisms

• activating pepsin

Which salivary glands produce a thick serous secretion containing large amounts of salivary amylase?

• parotid glands

• sublingual glands

• submandibular glands

• labial glands

Which of the following is a passageway for air, food and water?

• Pharynx

• Larynx

• Paranasal sinuses

• Trachea

Liver cells, or hepatocytes, receive blood from the __________.

• left gastric artery

• left gastric artery

• hepatic artery

• both the hepatic artery and hepatic portal vein

Chief cells secrete __________.

• intrinsic factor

• pepsinogen

• hydrochloric acid

• None of the listed responses is correct.