CNA Practice Test
Body systemsQuestion 771 of 1700

Which action begins mechanical digestion?

  1. Swallowing
  2. Peristalsis
  3. Absorption
  4. Chewing
Show answer

Correct answer: Chewing

Teeth crush and grind food into smaller pieces.

Source: Nursing Assistant (Reuter), 11.3: Digestive System

Practice body systems

Questions last reviewed: 18 October 2026