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Capillary

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.
CapillaryDiagram.png
A diagram of a capillary.

About Capillaries

Capillaries connect the veins to the arteries through organs.
Capillary.png
A diagram showing how arteries branch out to form capillaries which then join back together to form veins.

References

AQA

Capillaries, page 31, GCSE Combined Science; The Revision Guide, CGP, AQA
Capillaries, page 35, GCSE Biology; The Revision Guide, CGP, AQA
Capillaries, page 77, GCSE Combined Science Trilogy; Biology, CGP, AQA
Capillaries, page 83, GCSE Biology, CGP, AQA
Capillaries, pages 30, 51, 54, GCSE Biology, Hodder, AQA
Capillaries, pages 51, 54, GCSE Combined Science Trilogy 1, Hodder, AQA
Capillaries, pages 54-55, 61, 182-183, GCSE Biology; Third Edition, Oxford University Press, AQA
Capillary, pages 107, 113, GCSE Biology; Student Book, Collins, AQA

Edexcel

Capillaries, page 112, GCSE Combined Science, Pearson Edexcel
Capillaries, page 162, GCSE Biology, Pearson, Edexcel
Capillaries, page 264, GCSE Biology, CGP, Edexcel
Capillaries, page 62, GCSE Combined Science; The Revision Guide, CGP, Edexcel
Capillaries, page 90, GCSE Biology; The Revision Guide, CGP, Edexcel

OCR

Capillaries, page 30, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR
Capillaries, page 37, Gateway GCSE Biology; The Revision Guide, CGP, OCR
Capillaries, pages 75, 117, Gateway GCSE Biology, Oxford, OCR