#6.2 Human Physiology - Blood System
Oct 12, 2023•22 min•Season 1Ep. 30
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Episode description
In this sub-unit of human physiology we will explore contents of:
- Arteries convey blood at high pressure from the ventricles to the tissues of the body
- Arteries have muscle cells and elastic fibres in their walls
- The muscle and elastic fibres assist in maintaining blood pressure between pump cycles
- Blood flows through tissues in capillaries
- Capillaries have permeable walls that allow exchange of material between cells in the tissue and the blood in the capillary
- Veins collect blood at low pressure from the tissues of the body and return it to the atria of the heart
- Valves in veins and the heart ensure circulation of blood by preventing backflow
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