Question

Regeneration within the CNS ________. Regeneration within the CNS ________. is prevented due to growth-inhibiting proteins of oligodendrocytes is promoted by growth inhibitors and glial scars typically allows axonal sprouting of 20 mm is more successful than with the PNS

Answer 1

Regeneration within the CNS is prevented due to growth-inhibiting proteins of oligodendrocytes. Unlike the PNS, regeneration is limited in the CNS due to the presence of growth inhibitors and glial scars. However, recent discoveries such as the drug ISP offer hope for promoting nerve cell regeneration in the future.

Step-by-step explanation:

Regeneration within the CNS is prevented due to growth-inhibiting proteins of oligodendrocytes. Unlike the peripheral nervous system (PNS), where regeneration is possible, the presence of these growth inhibitors and glial scars in the central nervous system (CNS) hinders axonal sprouting and limits neural regeneration. While CNS regeneration is limited, there have been recent discoveries, such as the drug ISP, that show potential for promoting nerve cell regeneration in the future.

Answer 2

C) is prevented due to growth-inhibiting proteins of oligodendrocytes

Step-by-step explanation:

Oligodendrocytes are the neuroglial cell and mainly serve to support neurons. These cells also produce a myelin sheath around axons of neurons of the central nervous system. Axons in the CNS display little regrowth or neurogenesis. Inhibition of regeneration is due to several factors such as the absence of a neurolemma and an inhibitory influence of the oligodendrocytes on axon regrowth. For the purpose, the oligodendrocytes produce growth-inhibiting proteins. Axons in the CNS are myelinated by oligodendrocytes and this myelin is one of the inhibiting factors in the regeneration of neurons.