Visceral muscles are involved in which type of control?

Visceral muscles, also known as smooth muscles, are primarily responsible for the involuntary movements of internal organs. This means they function without conscious control, regulating processes such as digestion, blood circulation, and the movement of substances through various systems in the body, such as the gastrointestinal tract.

Unlike skeletal muscles, which are under voluntary control (allowing us to choose when to move them), visceral muscles operate automatically and are controlled by the autonomic nervous system. This involuntary control enables vital bodily functions to occur seamlessly, maintaining homeostasis without requiring conscious effort.

The other choices refer to different types of muscle control. Voluntary control strictly pertains to skeletal muscles, which allows for intentional movement. Reflexive control typically involves rapid, automatic responses activated by the nervous system, but doesn't encompass the broader autonomic regulation of visceral muscles. Therefore, the choice highlighting involuntary and unconscious control accurately captures the nature of visceral muscle function.