Question

Damage to the ___ would likely result in paralysis, while damage to the ___ would likely result in numbness.

A motor cortex; somatosensory cortex

B hypothalamus; medulla

C somatosensory cortex; motor cortex

D medulla; motor cortex

E cerebellum; hypothalamus

Answer 1

Hypothalamus function is to is responsible for hormonal secretion and body homeostasis. Thus Option B and E can be eliminated.

Motor cortex is responsible for motor movements. There are three components of the motor cortex which work together for movement of the body, They are the supplementary motor area which is responsible for planning of movements and coordination of the body. The premotor cortex which prepare the movement for action and the  primary motor cortex which execute the movement by generating nerve impulses. Damage to the Primary motor cortex of one side of the brain leads to impaired movement of opposite side of the body.

somatosensory cortex is responsible for sensation of touch.location of pain, temperature, tingling and other sensation is the function of the somatosensory cortex. Damage to this area leads to inability to percieve tactile stimuli.

Thus C and D can be eliminated and the answer is Option A motor cortex; somatosensory cortex

Damage to the motor cortex would likely result in paralysis, while damage to the somatosensory cortex would likely result in numbness.