Answer:
During a state of emotional arousal, the adrenal glands release norepinephrine into the bloodstream.
Step-by-step explanation:
Norepinephrine is a chemical substance also known as noradrenaline that is produced by the adrenal gland in a fight-or-flight response. It is a neurotransmitter that also works as a hormone and is part of the family of catecholamines. Norepinephrine's main function is to increase the contraction of skeletal and cardiac muscle, thus becoming very important for the sympathetic nervous system to perform properly.