KROK 1 2008 – Question 71 · KROK (Medicine) · Physiology
As a result of destruction of certain brainstem structures an animal has lost its orientative reflexes in response to strong photic stimuli. What structures were destroyed?
- A. Anterior tubercles of quadrigeminal plate
- B. Black substance
- C. Posterior tubercles of quadrigeminal plate
- D. Vestibular nuclei
- E. Red nuclei
Hint
Think about which paired elevations on the roof of the midbrain act as the subcortical centre for orienting responses to sudden visual stimuli.
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