Final answer:
False. Synthetic catecholamines have a longer duration of action than natural catecholamines produced by the body.
Step-by-step explanation:
False. Synthetic catecholamines have a longer duration of action than natural catecholamines produced by the body. Catecholamines are hormones produced by the adrenal medulla, such as adrenaline (epinephrine) and norepinephrine. These hormones play a role in the body's stress response, increasing heart rate, breathing rate, muscle contractions, blood pressure, and blood glucose levels. Synthetic catecholamines, also known as sympathomimetic drugs, mimic the actions of these natural hormones and are often used in medical treatments. However, they have a longer duration of action than natural catecholamines, meaning they stay in the body for a longer period of time.