How does the heart work?

To play this video you need to enable JavaScript in your browser.

This video can not be played

Description

"This video explains the structures of the heart and how it pumps blood around the body in a double circulatory system. Blood carries oxygen and nutrients through three main types of vessels called arteries, veins and capillaries.

Find out more about GCSE Biology"

The human body – staying alive

Now playing video 6 of 6

Cellular respiration and transport. Video
1 of 6
The nervous system. Video
2 of 6
Homeostasis. Video
3 of 6
Hormones in human reproduction. Video
4 of 6
The human endocrine system. Video
5 of 6
Now playing. How does the heart work? Video
6 of 6