Some cells do repairs if you get a cut ... This video recaps all the key learning points about the circulatory system. Looking for more teaching resources to share with your students?

In each cubic millimetre of blood, there are more than five million red blood cells, thousands of white cells and 250,000 to 450,000 platelets for blood clotting. Every second, 2.5 million new red ...

He added: “By improving our understanding of the different cell types within our circulatory system, this research can help to accelerate the development of new, targeted treatments for some of ...

W hen some snakes bite, they can deliver a powerful punch of toxin-filled venom that damages organ systems and can even result in death. Annually, around 400,000 snakebite victims die worldwide. One ...

Stripped of all but its veiny skeleton, the circulatory network of a spinach leaf successfully ... spinach leaves can be used as an edible scaffold to grow bovine muscle cells as they develop into ...

The circulatory system is the heart and all the blood vessels in the body which carry cells and substances to all its parts. The heart is a large muscular organ which pumps blood to the lungs and ...

This article was originally published with the title “ The Circulatory System of Plants ” in Scientific American Magazine Vol. 200 No. 2 (February 1959), p. 44 doi:10.1038 ...