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Chemical Coordination and Integration question

2002 · Q14
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Chemical Coordination and Integration question

2002 · Q14

NEETBiologyChemical Coordination and IntegrationMCQ+4 / −1
Adrenaline directly affects on
  1. A
    S.A. node
  2. B
    β\betaβ-cells of Langerhans
  3. C
    dorsal root of spinal nerve
  4. D
    epithelial cells of stomach.
View written solutionFree

Correct answer: A

Adrenaline directly affects the SA node to increase rate of heartbeat. Adrenaline prepares the body for emergency reactions like fight and flight. Thus there is increase in heart rate, breathing rate, blood pressure, glucose level in blood, peripheral circulation, etc.

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