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Multiple Choice
Catecholamines are responsible for which of the following actions?
A
Stimulating the release of insulin
B
Increasing heart rate and blood pressure
C
Decreasing blood glucose levels
D
Promoting digestion and absorption
Verified step by step guidance
1
Understand the role of catecholamines: Catecholamines are hormones produced by the adrenal glands, which include adrenaline (epinephrine), noradrenaline (norepinephrine), and dopamine. They are part of the body's response to stress or 'fight or flight' response.
Identify the physiological effects of catecholamines: These hormones primarily increase heart rate, blood pressure, and blood glucose levels to prepare the body for a quick response to a threat.
Analyze the options given: Consider each option in the context of the known effects of catecholamines. For example, increasing heart rate and blood pressure aligns with the 'fight or flight' response.
Evaluate the option 'Stimulating the release of insulin': Catecholamines typically inhibit insulin release to increase blood glucose levels, which is contrary to this option.
Conclude with the correct action: Based on the physiological effects of catecholamines, the correct action they are responsible for is increasing heart rate and blood pressure.