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2021年12月7日 (火) 16:42時点における最新版

The mind consists of about 100 billion neurons - nerve cells essential. It is thanks to them that we ponder, deem and act.

Is twice the cells called glial cells, before just glia neuroglejem. They sustain the structure and metabolism of neurons.

A classic neuron cell has an unbalanced shape, and in the middle of the threatening nub. It is surrounded by a cell membrane with protruding starting it are slim fibrils. This dendrites - bony projections, which comes from one cell awake to 10 thousand. They resemble the branches of a tree - are thickest by the cell surface, then split into thinner branches. Every one concurrently they create a system like gristly sponge.

Dendrites act as antennas, receive impulses from supplementary neurons and transmit them to the cell nucleus, or else vice versa from the nucleus to the additional cells. They are same unstable, lying face down to damage, markedly in the elderly. Thus, over calculate, a lesser amount of efficiently receive and transmit impulses.

In the brain, here are some types of neurons that act resting on poles apart parts of the body. For paradigm, motor neurons carry impulses to muscles energy, recommending the execution of the movement. Signals transferred to the endocrine glands, causing the secretion of hormones. Sensory neurons transmit sensory impulses, generous us information about what we distinguish, be made aware, consider, predilection and smell. In attendance are too relay memories, mind's eye and dreams.

The main of the distinctive filaments nascent from the cell to the axon. Reaches a length of cheery to one, and positive to 1.5 meters. Conducts nerve impulses to the dendrites of additional neurons.

Axons and dendrites have tiny branches that connect them with new neurons. From end to end these branches of a unattached chamber can join with thousands of further neurons.

Point of contact connecting the axon of one neuron and the dendrites of supplementary neurons that synapse. It is infinitely minute connector anxious. A distinct neuron can have as many as 100,000 synapses, involving it to supplementary cells.

Glia, the underneath cells, surrounds the axons, forming an insulating layer called the myelin sheath, or else myelin. Myelin prevents interruptions in the flow of emotional undercurrent, facilitates and streamlines the arise of regeneration calls.

The cells are contacted with apiece supplementary by instrument of electrical pulses and chemical interactions. Information, that is, the electrical impulse runs along the axon to the synapse, where it causes the release of a tiny portion of chemicals called neurotransmitters (neurotransmitters). Nerve cells and neurotransmitters act suddenly. Fire an electrical gesture www.naklejki-na-sciane.pl next to the end of the axon, neurons takes only a thousandth of a second.

Neurotransmitters go across the synapse infinitesimal seats and reach the next neuron dendrites. Near activates specific receptors - protein specifically sensitive - located in the membrane of the cell receiving the suggest. Near is then a reaction like to the interaction between the key and the fasten. Each one neurotransmitter admit and attach to an suitable receptor. When the neurotransmitter binds to its receptor, it triggers a series of biochemical reactions that make that information gets into the cell nucleus. Next it is sent taking place to the axon terminals and transmitted to close cells. They accomplish it their peculiar neurotransmitters cells.

In petite neurons hold trials whose complexity exceeds the complexity of the production processes in the new factory.

Thus, detail cells are neurons. Are specialized in the conduction of electrical impulses and chemical. In addition, they can organize a local network. These, in attack, join to the regions and structures of the brain that work concurrently as a system. The brain is a system of systems.

This complicated is a uncouth account of the complex deal with of heartrending to a unattached nerve impulse across the network. In actuality, countless hundreds of axons creates each distinct neural trace. These, in turn, achieve cheery the bundle assemble nerve tissue of the brain - which is the outer layer of the bark and the spinal cord.

Pulse current is not a unattached gesture, nevertheless a million time multiplied wave spilled all greater than the industrial area.

As described by the brain are transmitted view. This flow of current between neurons is a process of thought. They appear in the grow of signals and reaching the suitable region of