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The Concept Map you are trying to access has information related to:
Heart Rate Jack Mao, End of fibres in SINOATRIAL NODE increases Rate of impulse production, Rate of impulse production causes Increase in HEART RATE, Impulses pass down nerve fibres To Heart, Impulses causes Release of Acetylcholine, Release of Noradrenaline at End of fibres in SINOATRIAL NODE, Chemo Receptors in Aorta/ Carotid Arteries signals Cardioinhibitory Centre, Increase in Blood Pressure triggers Stretch Receptors in Vena Cava, Stretch Receptors in Vena Cava signals Cardioacceleratory Centre, Increase in Oxygen triggers Chemo Receptors in Aorta/ Carotid Arteries, Production of impulses by S.A. NODE causes Decrease in HEART RATE