B4(organising Animals And Plants) Flashcards
What does plasma do in blood
Transports proteins and other chemicals around the body
What do red blood cells do
Transport oxygen from the lungs to the tissues
What do platelets do
Start the clotting process at wound sites
What do white blood cells do
Help to protect the body against infection
What do arteries do
Carry blood away from your heart to the organs of your body
What do veins do
Carry blood away from the organs towards your heart
What do capillaries do
Allows substances such as oxygen and glucose to diffuse easily out of your blood and into your cells
What do valves do
Prevent backflow ensuring that blood flows in the right direction
How does the heart pump blood around the body
-The aorta carries oxygenated blood away from the left ventricle to the body.
-The vena cava carries deoxygenated blood from the body back to the heart.
-The pulmonary artery carries deoxygenated blood away from the right ventricle to the lungs.
-The pulmonary vein returns oxygenated blood from the lungs to the heart.
What do stents do
Used to keep narrowed or blocked arteries open
What do statins do
Reduce cholesterol levels in the blood
