The paresthesia that occurs in vitamin B₁₂ deficiency anemia is a result of which of the following?
A) Reduction in acetylcholine receptors in the postsynaptic nerves
B) Myelin degeneration in the spinal cord
C) Destruction of myelin in peripheral nerves
D) Altered function of neurons in the parietal lobe

Question

Quizplus · Accepted Answer

Effects on the nervous system can occur if a vitamin B₁₂ deficiency causes the anemia.Myelin degeneration may occur with the resultant loss of fibers in the spinal cord,producing paresthesia (numbness),gait disturbances,extreme weakness,spasticity,and reflex abnormalities.This selection is the only option that accurately describes the cause of paresthesia in such anemias.

The Paresthesia That Occurs in Vitamin B₁₂ Deficiency Anemia Is