What is the function of the motor neuron?
Motor neuron function is to carry an electrical signal into the muscle, start it either for reduction or relaxation. In vertebrate animals, including humans, the movement of articulated internal skeletal structure is allowed to coordinate the coordination of many muscles attached to them. Only the brain is capable of this comprehensive coordination and electrical signaling is probably the only means of fast enough to add its instructions to the far -discarded muscles. Delivery medium is electrically exciting cells called neurons. Its basic structure includes a receptor at one end and a transmitter on the other, connected by an elongated body called Axon, some of which can be 39 inches (1 m) in humans. Nerve cell chains, end to the end, are connected to nerve fibers that range from the brain to the muscles of the fingers and further.
The human nervous system consists of B Branching network of nerve fibers penetrating throughout the body and the central nervous system, namely the brain and spinal cord. All are made of different specializationof the neurons. The motor neuron is defined by its eperential function: it transmits the signals away from the central nervous system. On the other hand, afferent nerves carrying signals towards Misha and the brain are called sensory neurons. Not all engine movement is controlled and controlled by the brain; For example, the automatic reflex of the knee twitch comes from the spinal cord to the thigh muscles.
It is also worth noting that in addition to long, striped bundles attached to the skeleton are different types of muscles. The heart muscles of the heart are specialized in rhythmically. Smooth muscles, such as those that drive food through the digestive tract, specialize in a uniform contract according to their different shapes, such as spinners and tubes. Although it is predominantly involuntary muscle activities, they are under the brain command that is sent by motor neurons. Those who control voluntary skeletal muscles are called somatic; Heart and smooth sowLY is controlled by motor neurons called visceral.people cannot recharge with the AC electric wall, so the task of a motor neuron is to create electricity and transmit the charge to another neuron and others until the terminal neuron drains electricity into muscle tissue. This is achieved by chemical signaling. At the end of the receptor and to a lesser extent, its transmission end extends the nerve cell a network of fibers called dendrites that made contact with neighboring neurons. Their cell membranes have molecular channels through which the intracellular versus extracellular concentration of ion or charged elements, including potassium, is compared. When the breakdown reaches the turning point, the cell generates an electrical pulse called the action potential that accelerates its axon and activates its terminal dendrites.
Electrical stimulation of dendrites releases a chemical neurotransmitter called acetylcholine, which brings a microscopic gap between two connected neurons, as well as a gap betweennerve cell and muscle cell. The class of compounds called noradrenaline is another known neurotransmitter. In fact, these compounds open ion channels that allow cells to measure the charge differential and decide whether to fire your own electric pulse further down the nervous system. At the end, acetylcholine receptors are in favor of the skeletal muscles, whose positive activation induces the respiratory contraction of the cell.
Motor neuron function is perfectly suitable for muscle function. The electrical signal they transmit is either positive or negative. The muscles also have a binary condition and MDash; Contract or relax.