Final answer:
Epinephrine, also known as adrenaline, is a morphine-like neurotransmitter found in the brain and adrenals. It is produced by the adrenal gland and released into the bloodstream as a hormone.
Step-by-step explanation:
Epinephrine, also known as adrenaline, is a morphine-like neurotransmitter found in the brain and adrenals. It is produced by the adrenal gland and released into the bloodstream as a hormone. Epinephrine binds to alpha and beta receptors and is involved in the fight-or-flight response, increasing heart rate, blood pressure, and glucose levels.