What is the heart? Is a ____________ that _______________.
pump, beats.
When we do exercise, we need more _____________, so the heart beats _________._______.
exercise, oxygen, faster.
The heart has 4 _____________: the top 2 are: the right and the left ______________ and the bottom 2 are: the right and left __________________.
Chambers, atrium, ventricle.
Blood enters the heart through the ____________ , then it flows into the _______________, where is pumped out. There are special flaps called ___________, that stop the blood from flowing backwards.
Atria, ventricles, valves.
What is this?
Right and left atrium; right and lef ventricle.
What is this?
Superior and inferior vena cava
What is this?
Aorta
What is this?
Pulmonary artery
What is this?
Pulmonary vein
What are the parts of the circulatory system?
The heart, arteries (the red ones), veins (the blue ones), capillaries.
Arteries: Carry ___________ from the ____________ to ______________in the rest of the body.
blood, heart, capillaries.
Veins: Carry ______________ from the ____________ to the ________________.
Blood, capillaries, heart.
What are the 4 blood components?
Plasma, red blood cells, white blood cells, platelets.
Plasma: carries __________ and ______________.
nutrients, waste products.
Red blood cells: Carry ___________ and ____________.
oxygen, carbon dioxide.
