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Which change usually occurs in the body when adrenaline is released from the adrenal gland?

Answer and explanation

Correct answer: Heartbeat and breathing rate increase

The governing concept is the emergency or fight-or-flight response. Adrenaline released by the adrenal glands prepares the body for rapid action by increasing heart rate, breathing rate, and blood supply to active muscles. These changes help deliver oxygen and energy quickly. Therefore option A is correct. Sleep, absence of blood changes, and complete muscle stoppage are opposite to the normal action of adrenaline.

Related tags

AdrenalineAdrenal GlandFight-Or-FlightEndocrine SystemControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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