Nerve and muscle: chromatolysis: practice question

The best answer is A, Chromatolysis. Chromatolysis is the cell body reaction to axonal injury, with swelling, eccentric nucleus and Nissl dispersal as protein synthesis shifts to repair.

Wallerian degeneration describes the distal axon, not the cell body.

Transneuronal atrophy affects neurones that lose input from a degenerated neurone.

Axonal sprouting is regrowth from the proximal stump, not the cell body appearance described.

It tests Nerve and muscle: chromatolysis in Physiology. Wallerian degeneration is the breakdown of the axon segment distal to the lesion.

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

For each system, sketch the key graph (pressure–volume loop, oxygen dissociation curve, nephron handling) and explain it aloud. Then use the flashcards and the other Physiology questions on this site to test what stuck.

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.