Human Anatomy Test

Front

What is the Common Bile Duct?

Back

The Common Bile Duct is a tube that carries bile from the liver and gallbladder to the duodenum (the first part of the small intestine).

Front

Why doesn't the stomach digest itself?

Back

The stomach doesn't digest itself because of the mucous membrane that protects its lining from the acidic gastric juices.

Front

Where is the FIRST site of chemical digestion in humans?

Back

The mouth is the first site of chemical digestion, where enzymes in saliva begin breaking down food.

Front

What is the Gallbladder?

Back

The Gallbladder is a small organ that stores bile produced by the liver, releasing it into the small intestine to aid in digestion.

Front

What separates the esophagus from the stomach?

Back

The cardiac sphincter, also known as the lower esophageal sphincter, separates the esophagus from the stomach.

Front

What is the function of the pyloric sphincter?

Back

The pyloric sphincter controls the passage of partially digested food from the stomach to the small intestine.

Front

What are rugae?

Back

Rugae are folds in the stomach lining that allow it to expand when food enters.

Front

What is the role of pepsin in digestion?

Back

Pepsin is an enzyme produced in the stomach that helps break down proteins into smaller peptides.

Front

What is the function of villi in the small intestine?

Back

Villi are small, finger-like projections that increase the surface area for absorption of nutrients in the small intestine.

Front

What is the duodenum?

Back

The duodenum is the first section of the small intestine, where most chemical digestion occurs.