Choose the answer which lists the correct order of the diges...

Which structure is the uppermost part of the alimentary canal or gastrointestinal (GI) tract?

Rationale: The alimentary canal begins at the mouth, followed by the esophagus, making the esophagus the uppermost structure listed.

A lack of functioning salivary amylase would prevent an individual from being able to digest lactose

Rationale: Salivary amylase digests starches, not lactose. Lactose digestion occurs in the small intestine via lactase.

Salivary amylase and pancreatic amylase are enzymes responsible for the chemical breakdown of

Rationale: Amylase enzymes break down starch into simpler sugars such as maltose during digestion.

Which of the following is not a major gastrointestinal hormone?

Rationale: Epinephrine is not a gastrointestinal hormone; it is primarily involved in the sympathetic nervous system.

What structure in the intestine increases surface area?

Rationale: Villi are finger-like projections in the small intestine that increase surface area for absorption.

Digestive System Questions