NEET 2002 Biology question

Adrenalin directly affect on : -

(1)S.A. NodeCorrect
(2)-cells of Langerhans
(3)Dorsal root of spinal cord
(4)Epithelial cells of stomach

Answer: (1)

Solution

Adrenaline (epinephrine) from the adrenal medulla is the "fight or flight" hormone. It acts directly on the SA node (pacemaker), increasing the heart rate and the force of contraction and cardiac output. It does not

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Question ID VK-089061