Zusammenfassung der Ressource
Blood
- Blood is made up of plasma, red blood cells, white blood cells and platelets
- Plasma
- is a yelowish liquid which is 90% water. It carries the nutients and waste products
- Red blood cells
- give blood its colour. They carry oxygen and carbon dioxide
- White blood cells
- fight infection. They surround and absorbe germs which enters the body
- Platelets
- When the body is losing blood because of a cut in the skin, join together and helps stop the bleeding
- Blood is transported through three types of blood vessels
- Arteries
- Carry blood from the heart to the rest of the body.This blood contains oxygen.
- Veins
- Carry the blood back to the heart. This blood contains carbón dióxido
- Capillaries
- Are tiny blood vessels which connect the arteries and the veins. They have very thin walls so gases and nutrientes can easily pass through them to the vells