Degenerative changes in posterior and lateral columns of spinal cord (funicular myelosis) caused by methylmalonic acid accumulation occur in patients with B12 -deficiency anemia. This results in synthesis disruption of the following substance:

Question

Answer options

Serotonin
Dopamine
Myelin
Acetylcholine
Norepinephrine

Correct answer

Myelin

Explanation

B12 is responsible for cell regeneration, Therefore deficiency of it causes degeneration of cells. Note that Myelin sheath is the covering of the Spinal Cord.

This educational archive is provided by KROKEXAM and is not an official testing authority publication.