The Fibers of the Corticospinal Tract That Cross Over the Midline

question 159

Multiple Choice

The fibers of the corticospinal tract that cross over the midline at the medulla ___________.

• A) Cross back over at the level of the spinal cord
• B) Control movement of the distal limbs and digits
• C) Control movement of the core muscles along the midline of the body
• D) Control movement of the facial muscles

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Definitions:

Commensalism

A symbiotic relationship where one organism benefits without significantly affecting the other.

Predation

An interaction between species where one organism, the predator, feeds on another organism, the prey, influencing the evolution of both.

Phorid Flies

Phorid flies are small insects known for their distinctive humpbacked appearance and are often found in decaying organic matter.

Parasitoids

Parasitoids are organisms, primarily insects, that lay their eggs on or in the bodies of other organisms (the host), leading to the eventual death of the host post-infestation.