1)Flow chart: transmission if impulse through neuron?
2)Short note: myelin sheat formation and function?
3) Schwan cell and oligoderocyte?
4) Comparison:Grey matter and White matter?
5) formation of impulses_ steps?
Answers
Answer:
2)Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances. This myelin sheath allows electrical impulses to transmit quickly and efficiently along the nerve cells. If myelin is damaged, these impulses slow down.
4)White matter is the whitish nerve tissue of the central nervous system that is mainly composed of myelinated nerve fibers (or axons). The central nervous system is the brain and spinal cord. And gray matter is grayish nerve tissue of the central nervous system mainly composed of nerve cell bodies and dendrites.
5)Neurons conduct electrical impulses by using the Action Potential. This phenomenon is generated through the flow of positively charged ions across the neuronal membrane. ... Neurons, like all cells, maintain different concentrations of certain ions (charged atoms) across their cell membranes.