First change to occur in the distal segment of cut________________?
Correct answer: B. Axonal degeneration
- A. Myelin degeneration
- B. Axonal degeneration
- C. Mitosis of schwann cell
- D. Sprouting
Explanation
The axon in the distal segment degenerates first after nerve severance, followed by breakdown of its myelin sheath and later Schwann-cell proliferation and sprouting. Thus axonal degeneration is the earliest listed change.
Last updated
Practise Neurophysiology
64 free Neurophysiology MCQs from Physiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physiology questions like this
Physiology is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
Abdominal visceral pain is transmitted by ________________?
Afferent component of corneal reflex is mediated by ________________?
Aphasia is most likely associated with a lesion in_______________?
Axon hillock is part of the soma of neuron which________________?
Blood brain barriers is absent in all of the following areas except__________________?