PATHOLOGY MCQ
ENDOCRINE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a “fight or flight” situation, the hypothalamus transmits nerve impulses directly to the ____ to secrete ____
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Adrenal medulla , adrenaline and noradrenaline
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Adrenal medulla , adrenaline only
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Adrenal cortex , noradrenaline only
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Adrenal cortex , adrenaline and noradrenaline
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Explanation:
Detailed explanation-1: -These glands respond by pumping the hormone epinephrine (also known as adrenaline) into the bloodstream. As epinephrine circulates through the body, it brings on a number of physiological changes. The heart beats faster than normal, pushing blood to the muscles, heart, and other vital organs.
Detailed explanation-2: -Noradrenaline and adrenaline are catecholamines that play major roles in regulation of the ‘inner world’ of the body by the brain. Noradrenaline (synonymous with norepinephrine), the main neurotransmitter of the sympathetic nervous system, is responsible for tonic and reflexive changes in cardiovascular tone.
There is 1 question to complete.