Red blood cell Carry oxygen. Contain haemoglobin (rich in iron) to carry oxygen. Biconcave shape to provide a large surface area for the diffusion of oxygen. No nucleus to provide more space for ...

seeps through capillary walls to deliver oxygen and nutrients to cells. At a certain point, that accumulating fluid has to ...

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 ...

Circulatory system Transport substances ... Support and protect internal structures. Produce blood cells. Store and release calcium. Specialised to: Respond to internal and external stimuli ...

termed “myokines,” which are released into the circulatory system and can modulate cell signaling throughout the body,” they noted. Raman added, “I would think of myokines as a biochemical soup of ...

If you're catching colds or feeling under the weather more often during this season, a few straightforward changes to your ...

Researchers think that microgravity could help grow liver "organoids" that could be used in medical research and even in ...

Each summer, European tourists descend on Death Valley, following the alleged footsteps of a famed German author. It’s this ...

For the neurons in the brain to work smoothly and be able to process information, the central nervous system needs ... brain endothelial cells lining the inner walls of blood vessels regulate the ...