Which statement correctly describes the decussation of fibers in relation to the rubrospinal tract? A) Fibers decussate at the spinal cord level. B) The tract does not decussate at... Which statement correctly describes the decussation of fibers in relation to the rubrospinal tract? A) Fibers decussate at the spinal cord level. B) The tract does not decussate at any point. C) All fibers decussate prior to reaching peripheral muscles. D) Decussation occurs in the midbrain before reaching the spinal cord.
Understand the Problem
The question is asking for the correct statement that describes how fibers decussate in relation to the rubrospinal tract, specifically the point in the central nervous system where this decussation occurs.
Answer
Decussation occurs in the midbrain before reaching the spinal cord.
Decussation occurs in the midbrain before reaching the spinal cord.
Answer for screen readers
Decussation occurs in the midbrain before reaching the spinal cord.
More Information
The rubrospinal tract fibers decussate in the midbrain, particularly in the ventral tegmentum, before they descend to the spinal cord. This enables them to descend on the contralateral side of the spinal cord.
Tips
A common mistake is confusing the decussation point of the rubrospinal tract with other tracts, such as the corticospinal tract, which decussates in the medulla.
Sources
- Rubrospinal Tract - Physiopedia - physio-pedia.com
AI-generated content may contain errors. Please verify critical information
