Illustration of blood separated in a test tube. The two main components of blood are plasma (clear) and red blood cells (erythrocytes). Red blood cells carry oxygen to body tissues and carbon dioxide to the lungs. Plasma is the fluid component of blood and is made up of water (central part of the plasma), proteins (top of the plasma) and various solutes (bottom of the plasma). One percent of blood consists of platelets (black at top of red blood cells), cell fragments that promote blood clotting and wound healing, and white blood cells (leukocytes), which are the cells of the immune system. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / VISUAL CAPITALIST |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |