The circulatory system is made up of a vast network of organs and blood vessels that deliver nutrients to every cell in the body.

The circulatory system includes the heart, blood vessels and blood, and is vital for fighting diseases and maintaining homeostasis (proper temperature and pH balance). The system's main function ...

Learn about the circulatory system with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.

A medical science project from Science BuddiesThe most common problem with the circulatory system today is coronary heart disease (also called coronary artery disease). Coronary heart disease is ...