October 12, 2023

#6.2 Human Physiology - Blood System

21 minutes

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

...more

By Amirali Ghajari