Multiple choice

Which of the following is NOT an effector of respiration in mammals?

  1. Heart

  2. Diaphragm

  3. Trapezius

  4. Intercostal muscles

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The trapezius muscle is a large, superficial muscle present in the neck, shoulders and back. It does not assist respiration whether at rest or during exercise.