The glial cells forming myelin sheaths are called oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. The gaps (approximately 1 micrometer wide) formed between myelin sheath cells long the axons are called Nodes of Ranvier.
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Risk factors for the disease include lack of physical exercise, smoking, High blood pressure, depression and sometimes poor diet. The disease occurs when there is a reduction of blood flow and oxygen to the heart muscle.
To prevent the onset, engage in physical exercises to keep fit and avoid the risk factors for example intake of excessive alcohol, smoking, and eat healthy food.
Treatment will involve prescribed medications and a lot of the above preventive measures that have already been mentioned.
The answer is b. er packages proteins and delivers them to other parts of the cell.
Answer:
Neurons are brain cells, numbering in the billions, which are capable of instant communication with each other through chemical messengers called neurotransmitters. ... The brain then attempts to make an internal representation of our external world through complex chemical changes.
Explanation:
