circulatory system Flashcards
What is the main job of blood?
transports oxygen, carbon dioxide and nutrients
What is the blood made up from?
plasma, white blood cells, red blood cells and platelets
What is the main job of an artery?
carries oxygenated blood from the heart around the body
What kind of blood do arteries carry?
oxygenated
Do arteries have valves?
no
What is the main job of a vein?
carries de oxygenated blood back to the heart
What kind of blood do veins carry?
de oxygenated
Do veins have valves?
yes- it stops back flow of blood
Do arteries have thick or thin walls?
thick
What are capillaries?
Capillaries are the smallest vessels that deliver oxygenated blood to muscles/organs from the arteries and then deliver deoxygenated blood back into the veins to travel back to the heart.
