What is one key characteristic of smooth muscle?

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Smooth muscle is characterized by acting involuntarily, meaning that it operates without conscious control. This type of muscle tissue is found in various internal structures such as the walls of blood vessels, the intestines, and the bladder. It plays a crucial role in processes such as digestion and blood flow regulation, which are automatically managed by the body's autonomic nervous system.

Unlike skeletal muscle, which is striated and under voluntary control, smooth muscle is non-striated and functions automatically, allowing internal organs to contract and function efficiently without requiring conscious effort. This involuntary action is essential for maintaining homeostasis and responding to various physiological demands.

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