Question

long - term vitamin b - 12 deficiency results in nerve damage, because of the vitamins role in the maintenance of

multiple choice
the cori cycle
neurotransmitters
beta oxidation
myelin sheaths

Explanation:

Vitamin B - 12 is crucial for the synthesis and maintenance of myelin sheaths. Myelin sheaths insulate nerve fibers, allowing for efficient nerve impulse transmission. A deficiency disrupts this, leading to nerve damage. The Cori cycle is related to lactate metabolism, beta - oxidation to fatty acid breakdown, and neurotransmitters are chemical messengers (not directly maintained by B - 12 in the context of nerve damage prevention like myelin sheaths).

Answer:

myelin sheaths