Answer:
Schwann cells.
Explanation:
The nervous system is divided into main parts- central nervous system and peripheral nervous system ( PNS). The nerves and ganglia that are present outside the brain are involved in the PNS.
The schwann cells are one of the important component of PNS. Schwann cells are involved in the formation of the myelin sheath in the PNS and increases the conduction of the nerve impulse. These cells are also known as neurilemma cells.
Thus, the correct answer is option (2).
Schwann cells refer to peripheral nervous system that form myelin sheath.
Schwann cells are type of glial cells of the peripheral nervous system that surrounds the neurons, cover they myelin sheath and also wrap around axons of motor and sensory neurons.
They form the myelin sheath.they are produce at the basal lamina that produce the myelin sheath around the axons of the neurons.
Therefore, Schwann cells refer to peripheral nervous system that form myelin sheath.
Learn more about Schwann cells from the link below.
https://brainly.com/question/4125073
