Question

Voluntary muscle is controlled at will and comprises what percentage of body weight?

A) 10%
B) 20%
C) 30%
D) 40%

Answer 1

Voluntary muscles, mainly skeletal muscles, can be consciously controlled and are critical for movement and posture. They comprise a significant part of body weight; about 40-50% in males and 30-40% in females, with the correct answer being 40%.

Step-by-step explanation:

Voluntary muscle, which is under the control of the will, is mainly comprised of skeletal muscle. These muscles are critical for actions such as locomotion and maintaining posture. While some aspects of postural control are subconscious, the muscles involved can also be consciously controlled.

The body weight composition from voluntary muscles varies between genders; the body of an average adult male is made up of 40-50% skeletal muscle, whereas for an average adult female it's 30-40%. Therefore, the correct answer to the question is D) 40%.