The sudden and involuntary jerking of a muscle or group of muscles is called a muscle spasm or muscle twitch. These spasms can occur due to various factors, including fatigue, dehydration, electrolyte imbalances, or nerve irritation. While they are usually harmless, persistent spasms may indicate an underlying medical condition that requires attention.
It is called involuntary muscle or smooth muscle.
There are some muscles in the body we cannot control: they are called involuntary muscles and cardiac muscles. Involuntary muscles are found in the digestive tract for example. Cardiac muscles are found in the heart. Neither these two muscle types are controlled. We can control what are called voluntary muscles which are the muscles that were used to move our bones.
straited muscles are those muscles which is under our control whereas those which are not are called involuntary.
Involuntary muscle control
Involuntary muscle control
The two main types of muscles are voluntary muscles and involuntary muscles. An voluntary muscle is a muscle that you use and work at your own will power such as your biceps or quads. In involuntary muscle is a muscle that is always being uses and you can not direct it otherwise, such as the heart.
Involuntary Muscle Immerse yourself medical language, page 431: "Smooth muscles are involuntary, nonstriated muscles."
Smooth muscles. These muscles are not striated and are involuntary.
Smooth muscles are involuntary, as are cardiac muscles. Only skeletal muscles are voluntary.
The skeletal muscles do have the involuntary muscle because they help it in the contraction process.
An involuntary muscle contraction is called a spasm.
Involuntary muscles (such as the heart, the sphincters, etc.) are traditionally smooth muscle.