What is the motor nerve?

Motor nerve is a nerve that carries impulses from the central nervous system that triggers the muscles for download. All voluntary muscles in the body are checked by motor nerves, which means that whenever it decides to move, the motor nerve is connected. All vertebrate animals use this highly effective system to control their voluntary muscles. Involuntary muscles such as the movement of the heart using another system. Where the motor nerve meets muscles, neural releases chemicals that stimulate muscle contraction. As soon as these chemicals disintegrate, the muscles are released again. The motor nerves have only an excitation effect, which means that they can only signal contractions, not muscle relaxation. When the information moves in the opposite direction, it is known as afferent. As an example of the difference between these nerve groups, the eperential nerves would be a signal to say their hand muscles to grasp the pot, but afferent nerves would bear the information that the pot is hot and the hand was burned.

It is possible to administer medicines that disrupt the activity of motor nerves. These drugs are known as muscle relaxants because they make it difficult or impossible for motor nerves to send signals that cause muscles to tighten, leaving the muscles in a relaxed state. An example of use for muscle relaxants is a medical procedure in which it is important to remain relaxed for the patient, such as inserting the urinary catheter.

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network of motor nerve pathways in the body allows people to perform different tasks, from simple to complex. Damage to these nerves or parts of the brain that communicate with them can lead to difficulties in performing movements or confused and irregular movements. For example, some people who experience brain damage have trouble walking due to damage, because part of their brain, which communicates with motor nerves in the feet, has been disrupted. In these cases they have to learn to walk again and teach their brain as whoto escape with motor nerve roads.