What is the effect of adrenaline and noradrenaline on heart beat, strength of heart contraction, and rate of…

What is the effect of adrenaline and noradrenaline on heart beat, strength of heart contraction, and rate of respiration?
  1. Decreases
  2. No effect
  3. Increases
  4. No effect on heart beat but increases strength of heart contraction and rate of respiration

Solution

Both the hormones increase the heart beat, the strength of heart contraction and the rate of respiration.

Asked in: NCERT

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