GENERAL HISTOLOGY

NERVOUS

NEUROGLIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What neuroglial cell is found in the PNS and forms individual myelin sheaths.
A
Oligodendrocytes
B
Schwann
C
Satellite
D
Ependymal
Explanation: 

Detailed explanation-1: -Schwann cells (SCs) are the main glial cells of the peripheral nervous system which wrap around axons of motor and sensory neurons to form the myelin sheath.

Detailed explanation-2: -In the PNS, the main neuroglia are Schwann cells, satellite glial cells within the ganglia and enteric glia, which support neurons within the enteric nervous system of the gastrointestinal tract.

Detailed explanation-3: -Schwann cells (SCs), named after German physiologist Theodor Schwann (1810–1882), are the main neuroglial cells of the peripheral nervous system (PNS).

Detailed explanation-4: -How do Schwann cells form the myelin sheath? The plasma membrane of Schwann cells, which contains high amount of lipid, forms the myelin sheath. The cholesterol present in the plasma membrane is essential for assembling the myelin sheath.

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