KROK 1 2018 – Question 55 · KROK (Medicine) · Human Anatomy

A 25-year-old woman complains of visual impairment. Examination revealed disturbed eye accommodation, the pupil is dilated and unresponsive to light. What muscles are functionally disturbed in this case?

  1. A. Lateral rectus muscle, iris sphincter muscle
  2. B. Iris dilator muscle, ciliary muscle
  3. C. Iris sphincter and iris dilator muscles
  4. D. Iris sphincter muscle, ciliary muscle
  5. E. Superior oblique muscle, ciliary muscle
Hint

Ask which autonomic division, travelling with which cranial nerve, drives pupillary constriction and near focusing, and then which muscles it supplies.

The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.

Create a free account Log in

More questions on Human Anatomy