Q145 / 200 · NEET 2002 · Zoology

Adrenalin directly affects:

  • Correct answer
    A
    SA node
  • B
    $\beta$ cells of Langerhans
  • C
    dorsal root of spinal cord
  • D
    epithelial cells of stomach

Solution

Adrenaline prepares the body for emergency reactions like fight and flight. Therefore, it directly affects the SA node to increase the rate of heart beat. Related Theory Adrenaline is a hormone released from the adrenal glands and together with noradrenaline, is to prepare the body for 'fight or flight'.

Hence, the correct answer is option: 'A'.

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