click below
click below
Normal Size Small Size show me how
JC Circulatory
| Term | Definition |
|---|---|
| Heart | organ in the body that pumps blood around the body |
| red blood cell | blood cell that carries oxygen around the body |
| haemoglobin | molecule, made of iron in the red blood cell, to carry oxygen |
| white blood cell | fights infection |
| platelets | blood cell which forms clots and scabs and prevents bleeding out |
| plasma | liquid part of the blood - carries gases, nutrients, wastes etc |
| artery | carries oxygenated blood away from the heart. Description: has thick wall, thin lumen, blood under high pressure |
| vein | carries deoxygenated blood to the heart. Description: has thin wall, large lumen, valves |
| capillary | tiny blood vessel one cell thick that connects arteries and veins |
| atrium | these are the top two chambers of the heart |
| ventricle | these are the bottom two chambers of the heart |
| septum | middle wall of the heart separates oxygenated and deoxygenated blood |
| cardiac muscle | special type of muscle the heart is made of - never tires |