IB Biology SL C3.1.12 Epinephrine Adrenaline Questions

Explore how adrenal epinephrine released during stress raises cardiac output, ventilation and respiratory-substrate availability for intense muscle action in IB Biology SL C3.1.12.

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Identify adrenal epinephrine secretion during stress or intense activity and explain its increase of sinoatrial-node activity and heart rate.
Explain how epinephrine increases ventilation, blood flow and respiratory-substrate availability to prepare skeletal muscles for action.

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Study C3.1.12—Epinephrine (adrenaline) conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

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This micrograph shows a transverse section of an artery.

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State one function of epinephrine in the human body.

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IB Biology SL C3.1.12 Epinephrine Adrenaline Questions question 1