What type of muscle is responsible for the movement of internal organs?

Smooth muscle is responsible for the movement of internal organs. This type of muscle tissue is found in the walls of hollow organs such as the intestines, bladder, and blood vessels. Unlike skeletal muscle, which is under voluntary control and is involved in movements that we consciously initiate, smooth muscle operates involuntarily. This means it cannot be controlled consciously and is governed by the autonomic nervous system.

Smooth muscle fibers have a non-striated appearance, which differentiates them from both skeletal and cardiac muscle, both of which exhibit striations. The contraction of smooth muscle helps facilitate processes such as peristalsis in the digestive tract, contraction of blood vessels, and regulation of airflow in the respiratory system. This involuntary contraction allows for the essential functions needed to maintain homeostasis within the body.