Arteries, veins and capillaries
- Created by: Alex
- Created on: 18-12-12 10:44
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- Heart
- Arteries
- Structure
- Small lumen
- Smooth muscle
- Elastic fibres
- Strong to withdraw large heart beats
- Role
- Carries blood from the heart
- Aorta
- Carries blood to body parts
- Oxygenated
- Pulmonary artery
- Carries blood to the the lungs
- Deoxynated
- Aorta
- Carries blood from the heart
- Structure
- Veins
- Structure
- Large lumen
- Endothelium
- Valves to stop back flow.
- Smooth muscle
- Role
- Carries blood away from the heart
- Vena Cava
- deoxygenate-d
- valves are used in the vein
- goes against gravity
- Vena Cava
- Carries blood away from the heart
- Structure
- Capilaries
- Structure
- extremely small
- One cell thick
- allows substances to diffuse over the wall.
- Role
- Delivers blood direct to body parts.
- diffuses through the one cell thick wall into tissues, cells and alveoli.
- Delivers blood direct to body parts.
- Structure
- Arteries
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