2.3.3

Blood Vessels - Capillaries

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Capillaries

Arteries branch into much smaller vessels, called capillaries. Capillaries have thin walls and pass very close to the body cells. This means that there can be an efficient exchange of:

Illustrative background for Food and oxygenIllustrative background for Food and oxygen ?? "content

Food and oxygen

  • In capillaries, food and oxygen moves out of the blood and into the cells.
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Waste products

  • In capillaries, waste products, such as carbon dioxide, move out of the cells and into the blood.

Jump to other topics

1Cell Biology

1.1What's in Cells?

1.2Cell Division

1.3Transport in Cells

2Organisation

2.1Principles of Organisation

2.2Enzymes

2.3Circulatory System

2.4Non-Communicable Diseases

2.5Plant Tissues, Organs & Systems

3Infection & Response

4Bioenergetics

5Homeostasis & Response

5.1Homeostasis

5.2The Human Nervous System

5.3Hormonal Coordination in Humans

5.4Plant Hormones

6Inheritance, Variation & Evolution

7Ecology

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