Question

Select the correct statement.

Options

• The U-shaped portion of the small intestine is termed the duodenum.

• The body of the tooth is made up of enamel.

• The buccal cavity leads into the esophagus.

• The pyloric sphincter prevents the regurgitation of food into the esophagus. 

Answer 1

The U-shaped portion of the small intestine is termed the duodenum.

Explanation:

The body of the tooth is made up of dentine, the buccal cavity leads into the pharynx, the pyloric sphincter is found at the posterior end of the stomach which prevents the backflow of food from the duodenum to the stomach.