As you walk home from the movie theater, you think that you hear footsteps behind you. suddenly, you notice that your heart rate has increased and you are breathing quickly. what portion of the nervous system has been activated?

a. sympathetic division of the autonomic nervous system

b. sympathetic division of the somatic nervous system

A. sympathetic division of the autonomic nervous system

Explanation:

The nervous system is broadly divided into the central and the peripheral nervous system. The peripheral nervous system is further divided int somatic and autonomic nervous system.The somatic nervous system is responsible for controlling the voluntary movements whereas the autonomic nervous system controls the involuntary movements. The autonomic system is further subdivided into parasympathetic (rest and digest response) and sympathetic division (fight and flight responses).

Both of them have a nucleus, golgi apparatus, cell membrane, smooth and rough endoplasmic reticulum, lysosome, and ribosomes.