MICROANATOMY

Detailed explanation-1: -Voluntary: Done in accordance with the conscious will of the individual. The opposite of involuntary. The terms “voluntary” and “involuntary” apply to the human nervous system and its control over muscles. The nervous system is divided into two parts–somatic and autonomic.

Detailed explanation-2: -Voluntary muscles can be controlled by our conscious thought, e.g. the muscles in our hands as we catch a ball. Involuntary muscles, like those that control the beating of the heart, do not require conscious thought to make them move even though their action is still controlled by the nervous system.

Detailed explanation-3: -Both involuntary and voluntary actions are controlled by the same parts of the brain. Hindbrain and midbrain control involuntary actions like salivation, vomiting, etc. All the body’s voluntary actions are controlled by the motor cortex in the frontal lobe of the cerebrum.

Detailed explanation-4: -Whether it is a facial expression or movement of the hand, tongue or finger, the main function of voluntary muscles is always the same: to allow the subject to perform muscle movements controlled by their own will.

Detailed explanation-5: -If you volunteered to do it, it’s voluntary. If you didn’t volunteer, but you find yourself doing it anyway, it’s involuntary.