Cardiovascular system
- Created by: Molly Hemeter
- Created on: 07-04-16 20:25
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- Cardiovascular system
- Heart
- Blood
- Blood vessels
- Responses
- Increase in stroke volume
- Increase in HR
- Increase in cardiac output
- Redistribution of blood flow to working muscles (vascularisation)
- Adaptations
- Cardiac hypertrophy
- Increased number of capillaries
- Increased SV
- Increased CO
- Improved blood flow to heart muscle
- Increase in blood volume and blood cells
- Decreased resting HR (bradycardia)
- Decreased resting blood pressure
- Heart
- Left side- receives oxygenated blood
- Right side- receives de oxygenated blood
- Bigger the heart= more blood it can hold
- Stronger the heart= more blood it can force
- Increase in HR before exercise= preparation for activity. Anxiety. Emotion
- SV x HR= CO
- Heart- blood vessels- arteries- capillaries
- More capillaries in muscle= More blood, nutrients and O2
- Vasoconstriction and vasodilation of blood vessels= controls blood flow/ vascular shunt
- Heart
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