Damage to which site would affect projections using the neurotransmitter norepinephrine?

a. Locus coeruleus

b. Raphe nucleus

c. Basal forebrain

d. Substantia nigra

Damage to the A. Locus coeruleus would affect projections using the neurotransmitter norepinephrine.

Explanation:

The locus coeruleus is a part of the brain which is primarily composed of noradrenergic cells. Its main functions are related to an individual's physical responses to fear and stress.

It is the main source of norepinephrine, since it is in charge of the responses to stress and fear such as increased heart rate and blood pressure, activation of glucose release so the individual has more energy and direction of more blood to go where needed, decreasing it in places where it is not necessary for the moment, such as the digestive system.

Damage to it would affect this neurotransmitter's projections.