As Joe prepares to spar with a tae kwon do opponent, his heart rate and respiration rate increase. These are indicators that which branch of the nervous system has been activated?

a. central

b. autonomic

c. parasympathetic

d. sympathetic

d. Sympathetic

Explanation:

Sympathetic is a division of the autonomic nervous which controls the inside of the body unconsciously. Its' main or primary process is to stimulate the body's fight-flight-or-freeze response. It is normally active to maintain homeodynamics of homeostasis.

In the question, Joe is preparing to spar with an opponent. He will need the fight-flight-freeze response, the Sympathetic nervous system will be activated.