Exam 19: The Digestive System

Most substances absorbed into the blood in the small intestine are carried to the liver by the

The layer of the GI tract wall containing networks of enteric neurons that control the secretory activity of the GI tract is called the

The exocrine portion of the pancreas

The gallbladder produces bile.

The lingual tonsil lies at the base of the tongue.

Teeth containing three or more blunt cusps used to crush and grind food are called premolars.

Which of the labeled regions of the large intestine is the rectum in which feces collects prior to defecation?

Which of the following organs does not release substances into the duodenum?

The exocrine portion of the pancreas consists of the acini that make up 1% of the mass of the pancreas.

Teeth are primarily composed of a bone-like substance called

Which of the labeled absorptive processes in the figure occur by passive transport without using cellular energy?

The liver is the largest organ of the body.

When empty, the mucosa of the stomach contains large folds called

The final portion of the small intestine, which is mostly found in the lower right quadrant, is called the

Pepsinogen is produced by the

Chief cells are found in the large intestine.

Name and describe the six basic processes performed by the digestive system.