A.Acetylcholine
B.Noradrenaline
C.Both (a) & (b)
D.None of these
Related Mcqs:
- Heart rate in neurogenic hearts is decreased by release of:
- Slowing of heart rate in man is done by:
- The heart rate in man is increased by:
- Free nerve endings of sympathetic nervous system will release which of these substances during the condition of tachycardia in our body:
- Sympathetic nerve fibres increase the rate of heartbeat by releasing which of these at their free endings:
- Parasympathetic nerve fibres decrease the rate of heartbeat by releasing which of these at their free endings:
- Metabolic rate in our body can be increased by giving an injection of:
- Under the condition of hypoxia in our body our heart rate is increased due to:
- Under the condition of increased CO2 concentration in blood our rate of respiration is increased which is an example of:
- Cholinergic fibres are those which liberate at their free ends:
