Question

define the following..

Nervous system

Anatomy and histology

Classification

Connectivity

Mechanisms for propagating action potentials

Neural coding

All-or-none principle

History

Neurons in the brain

Neurological disorders

Neurogenesis

Nerve regeneration

See also

References

Sources

Further reading

every one....


please don't copy or phaste from the Google...✅✅✅☑☑​

Answer 1

The neuron is the basic working unit of the brain, a specialized cell designed to transmit information to other nerve cells, muscle, or gland cells. Neurons are cells within the nervous system that transmit information to other nerve cells, muscle, or gland cells. Most neurons have a cell body, an axon, and dendrites.Neurons are the primary components of the nervous system, along with the glial cells that give them structural and metabolic support. The nervous system is made up of the central nervous system, which includes the brain and spinal cord, and the peripheral nervous system, which includes the autonomic and somatic nervous systems. In vertebrates, the majority of neurons belong to the central nervous system, but some reside in peripheral ganglia, and many sensory neurons are situated in sensory organs such as the retina and cochlea.The dendrites of a neuron are cellular extensions with many branches. This overall shape and structure is referred to metaphorically as a dendritic tree. This is where the majority of input to the neuron occurs via the dendritic spine.The soma is the body of the neuron. As it contains the nucleus, most protein synthesis occurs here. The nucleus can range from 3 to 18 micrometers in diameter.[5]Neurons vary in shape and size and can be classified by their morphology and function.[14] The anatomist Camillo Golgi grouped neurons into two types; type I with long axons used to move signals over long distances and type II with short axons, which can often be confused with dendrites. Type I cells can be further classified by the location of the soma. The basic morphology of type I neurons, represented by spinal motor neurons, consists of a cell body called the soma and a long thin axon covered by a myelin sheath. Thin neurons and axons require less metabolic expense to produce and carry action potentials, but thicker axons convey impulses more rapidly. To make the structure of individual neurons visible, Ramón y Cajal improved a silver staining process that had been developed by Camillo Golgi.[32] The improved process involves a technique called "double impregnation" and is still in use.

Answer 2

Answer:

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1. the network of nerve cells and fibres which transmits nerve impulses between parts of the body.
2. Anatomy and histology is the study of the structure of living things. Your introduction to the area is through the study of cell structure (histology) and the basic tissue of mammalian biology and musculo-skeletal anatomy.
3. Classification. Before scientists started to base evolutionary studies more on genetics botanists and zoologists classified organisms into different categories based on their physical characteristics. This ordering of organisms into groups based on similarities and differences is called classification.
4. Connectivity (media), the ability of the social media to accumulate economic capital from the users connections and activities. Internet connectivity, the means by which individual terminals, computers, mobile devices, and local area networks connect to the global Internet
5. Action potentials are propagated by the influx of sodium ions, which has the effect of depolarizing the adjacent membrane. This membrane is brought to threshold and the process is repeated along the length of the axon. These local depolarizations occur in both directions along the axon
6. Neural coding is a neuroscience field concerned with characterising the hypothetical relationship between the stimulus and the individual or ensemble neuronal responses and the relationship among the electrical activity of the neurons in the ensemble.
7. The all-or-none law is the principle that the strength by which a nerve or muscle fibre responds to a stimulus is independent of the strength of the stimulus. If that stimulus exceeds the threshold potential, the nerve or muscle fibre will give a complete response; otherwise, there is no response.