Zusammenfassung der Ressource
circulatory system
- blood vessels
Anmerkungen:
- there are three blood vessels.
- Vein
Anmerkungen:
- Carry blood to the heart. They have thin walls and have valves
- Arteries
Anmerkungen:
- Carry blood away from the heart, They have thick walls and no valves.
- Capillaries
Anmerkungen:
- Allow materials to pass through the veins and arteries.
- Heart
Anmerkungen:
- Pumps blood around the body
- Blood
Anmerkungen:
- There are four main parts.
- Plasma
Anmerkungen:
- Maintains body temperature
- Red blood cell
Anmerkungen:
- White blood cells
Anmerkungen:
- Platelets
Anmerkungen: