What are the 2 most important components of blood?
Plasma and blood cells
What are the 3 parts of the circulatory system?
Blood, Blood vessels & Heart
What is the function of the circulatory system?
Transport nutrients and oxygen and collect waste products and carbon dioxide.
What is blood plasma made of?
Basically: water + nutrients
Which are the 3 types of blood cells?
Red blood cells, White blood cells & Platelets
What is the function of red blood cells?
They transport oxygen
What is the function of white blood cells?
They defend us from microbes, infections...
What is the function of platelets?
They stop hemorrhages / bleefings
What blood vessel transports blood + oxygen from the lungs to the heart?
Pulmonary vein
What blood vessel transports blood + carbon dioxide from the heart to the lungs?
Pulmonary artery
What type of blood vessels transport blood + carbon dioxide from the capillaries to the heart?
Veins
What type of blood vessels transport blood + oxygen from the heart to the capillaries?
Arteries
What is the most important artery (and the biggest blood vessel) in the body?
The Aorta
What is the most important vein in the body?
Vena Cava
What type of blood vessel has got very thick walls?
Arteries
What type of blood vessel has got very thin walls?
Capillaries
