Question

Martin is riding his motorcycle to his office. When he hears the honking of a truck trying to
overtake him, he gives way to the truck. In the context of the pathways in the nervous system, in
this scenario, which type of nerves communicated information from Martin's brain to his muscles
and made him move his motorcycle?
A) efferent.
B) pyramidal.
C) afferent.
D) olfactory.

Answer 1

Answer:

The correct answer is A) Efferent nerves

Explanation:

Efferent nerves are also known as motor nerves. These are the nerves that send information from the brain to the spinal cord, and then, to the peripheral nervous system in the muscles. This is the reason why people who injure their spinal cord (like Christopher Reeve) become paralyzed.

Our muscles are actually full of nerves, just like they are full of veins and arteries. This is why it was possible for Martin to take swift action after hearing the honking of the truck. He heard the honking thanks to his central nervous system, and the signal went all the way to his peripheral nervous system in his arms, which he used to move his motorcycle.