Contents
Key Stage 3
Meaning
Capillaries are very small blood vessels that spread through the organs to deliver the oxygen and nutrients to individual cells.
Key Stage 4
Meaning
Capillaries are very small blood vessels that spread through the organs to deliver the oxygen and nutrients to individual cells.
Adaptations of Capillaries
- Capillaries are just wide enough for red blood cells to pass through.
- The walls of capillaries are only one cell thick.
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| A diagram of a capillary. |
About Capillaries
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| A diagram showing how arteries branch out to form capillaries which then join back together to form veins. |