Slowing of heart rate in man is done by:

Circulatory System Physiology Mcqs
BILAL KHATTAK0

A.Sympathetic nerve fibres by releasing noradrenaline
B.Parasympathetic nerve fibres by releasing acetylcholine
C.Sympathetic nerve fibres by releasing acetylcholine
D.Parasympathetic nerve fibres by releasing noradrenaline

Related Mcqs:

  1. The heart rate in man is increased by:
  2. Which of these nerve fibres accelerate the rate of heart beat:
  3. Neural control of heart beat is done by which of the following nerves:
  4. Why do we have techycardia during fever?
  5. Heart rate in neurogenic hearts in increased by release of:
  6. Heart rate in neurogenic hearts is decreased by release of:
  7. Nervous inervation of heart is primarily meant for:
  8. Sympathetic nerve fibres increase the rate of heartbeat by releasing which of these at their free endings:
  9. Parasympathetic nerve fibres decrease the rate of heartbeat by releasing which of these at their free endings:
  10. Cordial plexus of sympathetic system in frog is formed by:

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