Heart Rate Regulation
- Created by: Elise_parfitt
- Created on: 06-03-19 09:59
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- Heart Rate Regulation
- Intrinsic Control
- Temperature changes will affect the viscosity of the blood and speed of nerve impulse transmission
- Venous return changes will affect the stretch in the ventricle walls. force of ventricular contraction and therefore stroke volume
- Hormonal Control
- Adrenaline and noradrenaline are released from the adrenal glands increasing tjhe force of ventricular contractions (therefore SV) and increasing the speed of electrical activity through the heart (therefore HR)
- HR is increased via the sympathetic nervous system. HR is decreased via the parasympathetic nervous system.
- Intrinsic Control
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