Question

When you touch a hot object you automatically pull your hand away as a reflex. Which part of your nervous system is not involved in this response?

a. Sensory neurons

b. Motor neurons

c. Sensory receptors (incorrect answer)

d. Cerebellum

e. Spinal ganglia

I think the answer is d. Cerebellum because it is part of VOLUNTARY movements?

Answer 1

The correct option is d) cerebellum

when we touch hot object , skin receptors send nerve impulses to the spinal cord via sensory neurons. In the spinal cord, the interneurons make the binding between the sensory neuron and the correct motor neurons . From the interneurons, the action is passed to the motor neurons which project out of the spinal cord to stimulate our muscles (effector) to contract, causing you to snatch your hand away from the hot pot. This pathway taken by nerve impulses known as a reflex arc.These all are the non voluntary action in response to heat touch.

while cerebellum controls voluntary movements such as posture, balance, coordination, and speech, which make smooth and balanced muscular activity.

please give a thumbs up if the answer help yoh.Thank you!