Neuroanatomy basics · USMLE Step 1

Damage to the red nucleus impairs which motor pathway?

  1. Rubrospinal tract
  2. Corticospinal tract
  3. Vestibulospinal tract
  4. Reticulospinal tract
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Correct answer: Rubrospinal tract

The red nucleus gives rise to the rubrospinal tract, involved in flexor control of the upper limbs. Damage reduces flexor facilitation.

Difficulty: Medium Question 20 of 20

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