Final answer:
Dopamine, Norepinephrine, and Epinephrine are neurotransmitters related to the nervous system. They serve various functions, including roles in the 'fight or flight' response and the regulation of cardiovascular functions and kidney filtration.
Step-by-step explanation:
Dopamine (DA), Norepinephrine (NE), and Epinephrine (Adrenaline) are neurotransmitters primarily associated with the nervous system. These biogenic amines, including dopamine, norepinephrine, and epinephrine, are made from tyrosine. Dopamine is part of its own system known as the dopaminergic system and plays roles in motivation, reward, and motor control, among other functions. Norepinephrine and epinephrine, which are also known as noradrenaline and adrenaline respectively, belong to the adrenergic system. They are often called the "fight or flight" hormones and are released by the adrenal medulla and nervous system under stress, affecting cardiovascular functions such as heart rate and blood pressure, and temporarily halting certain functions like kidney filtration by constricting afferent arterioles. They are also key players in triggering the renin-angiotensin-aldosterone system, which regulates blood pressure and fluid balance.