Which of the following is true of the motor homunculus?
A) Damage to a part of the motor homunculus on one side of the brain would impair motor function of the entire body on the same side as the damage.
B) The homunculus represents the specific body muscle groups that are controlled by specific regions of the cortex.
C) The homunculus represents the specific body parts that send afferent signals to a specific region of the cortex.
D) There is only one homunculus in the human brain.
E) The homunculus depicts sensory function.

Question

Quizplus · Accepted Answer

The motor homunculus is a representation of the specific body muscle groups that are controlled by specific regions of the cortex. Each part of the homunculus is responsible for motor function in a specific body part, and damage to a part of the homunculus would impair motor function only in the corresponding body part.

Which of the Following Is True of the Motor Homunculus