Final answer:
Ultra-short catecholamine agents are drugs that mimic the effects of epinephrine and norepinephrine. Examples include epinephrine and norepinephrine.
Step-by-step explanation:
Ultra-short catecholamine agents are drugs that mimic the effects of the neurotransmitters epinephrine and norepinephrine. Examples of ultra-short catecholamine agents include:
- Epinephrine (also known as adrenaline)
- Norepinephrine (also known as noradrenaline)
These hormones are released by the adrenal medulla and are involved in the body's fight-or-flight response, increasing heart rate and force of contraction, and redirecting blood flow to essential organs during times of stress or danger.