Question

Which of these definitions best describes the structure and function of the​ stomach?

A.A hollow organ that secretes digestive enzymes and churns food
B.A hollow organ that allows the absorption of nutrients into the bloodstream
C.A vascular abdominal organ that filters nutrients from the blood
D.A solid organ that regulates the balance of water in the body

Answer 1

The stomach is a hollow organ that secretes digestive enzymes and churns food, mixing it with gastric secretions for digestion before passing it to the small intestine.

Step-by-step explanation:

The best description of the structure and function of the stomach is A hollow organ that secretes digestive enzymes and churns food. This is because the stomach is a J-shaped organ that uses peristalsis to mix food with gastric secretions for mechanical and chemical digestion.

The gastric acid in the stomach, which is highly acidic, activates enzymes like pepsin for protein digestion. The stomach also acts as a temporary holding chamber before passing the semi-digested food, known as chyme, into the small intestine.