Fibers Nervous Motor

Introduction:

Nerve fibers are one of the main components of the nervous system, which is responsible for transmitting nerve impulses from a nerve cell to a muscle cell. Motor nerve fibers are one of the groups of nerve fibers that perform the function of contracting and relaxing muscles.

Motor nerve fibers consist of a large number of protein molecules that form a continuous network in the nerve trunk. Nerve impulses are transmitted through this network to the nerve ending (synapse), where they communicate with the muscle fiber. Such connections are called synaptic connections, and they are one of the main mechanisms for transmitting nerve impulses in the nervous system.

One of the important properties of motor nerve fibers is their ability to excite and depolarize. This means that when they are excited, they are able to expand their channels, allowing more sodium ions to flow to their ends. Thus, these fibers are capable of causing contractions of muscles or other body tissues.

Nerve motor functions

1. Motor function: The motor nerve fiber causes contraction of the muscle fiber by depolarizing its membrane. Therefore, motor nerve fibers play an important role in controlling muscle activity. They can be involved in many physical activities such as walking, running, jumping, maintaining balance and more. 2. Reflex function: Nerve motor fibers are an important element in the regulation of the body's reflexes. For example, when you touch the skin, nerve impulses are transmitted through them, which cause a reflex reaction. This function can also be used to control the reaction speed of the brain and the body as a whole. 3. Protective function: One of the most important properties of motor nerves is the ability to quickly respond to irritation. For example, compression of motor nerves following spinal cord injury can cause muscles to contract, thereby helping to maintain the body's balance. 4. Sensory function: A large number of nerve motor fibers are found in sensory receptors, including pain, temperature, postural and other types. These fibers can transmit signals about irritation or damage to receptors in the brain, which helps protect the body from potentially harmful irritants. 5. Formation of nerve pathways: Nerve motor fibers provide transmission of impulse signals between nerve cells and motor neurons, forming nerve pathways. This allows organisms to transmit information about muscle movement and control to the central nervous system and then back to the muscles. 6. Regulation of homeostasis: Nerve fibers also play a role in regulating homeostasis - maintaining the internal environment of the body under physiological conditions. This ability may be used to maintain internal organ function, control body temperature, and regulate metabolism. 7. Psychophysiological Function: Recently, it has become increasingly clear that nerve fibers can be used to interpret a number of psychological functions and tasks. Some studies have linked their presence in the limbic system to the expression of emotions and motivation. Opportunities for studying nervous motor

The nerve cells involved in the study may open up new perspectives in the diagnosis and treatment of diseases of the central and peripheral nervous system. The following methods are used for this:

1 Microscopy