7.7 Flashcards
Circulatory system
The circulatory system is responsible for…
Transporting blood around your body.
Blood is made up of ____ , ____ __________ , ______ and _________ __________.
Cells, cell fragments, liquid and dissolved substances.
Oxygen is carried by…
Red blood cells
Carbon dioxide is dissolved in the…
Plasma
Nutrients and waste are dissolved in the…
Plasma
Blood cells that travel to bacterial cells to make kill them…
White blood cells.
Cell fragments that fill the hole when tissue is damaged.
Platelets.
Arteries….
Largest blood vessels with thick muscular walls and carry blood away from the heart.
Capillaries…
Thin and connect arteries and veins.
Veins…
Carry blood back to the heart, and have one way valves.