If a demyelinating disease impairs oligodendrocytes in the central nervous system, which consequence follows for signal transmission?

💡 Explanation

Demyelination reduces the effectiveness of saltatory conduction, slowing the transmission of action potentials, because myelin sheaths insulate axons, enabling rapid propagation. Therefore, signal transmission slows down, rather than increasing in amplitude or affecting neurotransmitter activity.

• Which failure mode becomes likely when a patient with hemophilia experiences a severe injury?
• Which effect commonly originates from cortisol receptor insensitivity?
• During pregnancy, a surge in placental hormones sustains the endometrium. Which mechanism explains why menstruation ceases despite the typical 28-day ovarian cycle's hormonal fluctuations?
• What causes multiple mature follicles to develop during ovarian stimulation for in-vitro fertilization, rather than a single dominant follicle?
• If a football player's head experiences significant rotational acceleration during a tackle, which consequence follows, increasing the likelihood of persistent post-concussive symptoms?
• Why does administering mismatched packed red blood cells (RBCs) expressing a foreign antigen result in rapid intravascular hemolysis?