Question

The "indirect pathway" from cortex to spinal cord does not play a role in a. feed-forward postural adjustments. b. weight shifts, as when a cat lifts one paw. c. certain motor functions that are spared after damage to the direct corticospinal pathway. d. post-injury recovery of fine motor functions such as using two fingers to pick up food. e. relaying information from cortex to spinal cord via the reticulospinal neurons.

Answer 1

The 'indirect pathway' from cortex to the spinal cord does play a role in feed-forward postural adjustments, weight shifts, and relaying information from cortex to spinal cord via the reticulospinal neurons. It is also involved in certain motor functions spared after damage to the direct corticospinal pathway. However, the role of the indirect pathway in post-injury recovery of fine motor functions is less clear.

Step-by-step explanation:

The 'indirect pathway' from cortex to the spinal cord is primarily responsible for involuntary and automatic movements, particularly those associated with posture and muscle tone. This pathway involves interactions between different parts of the brain, including the cerebral cortex, basal ganglia, and brainstem, which communicates with the spinal cord through reticulospinal neurons.

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