The movement of blood through the heart?

Answer 1

OK

DE-OXYGENATED blood enters the right atrium via the superior and inferior vena cava

it the passes through a cardiac valve into the right ventricle then into the pulmonary artery to the lungs . The de-oxygenated blood passes to the aveolia(small air sacs in lungs) via a network of capillaries. Diffusion occurs and an exchange of gases take place (co2 goes into the aveolia ready to be breathed out and the oxygen from breathing in that is stored in the aveolia goes into the blood. The blood is now oxygenated!

Now the oxygenated blood goes into left atrium via pulmonary veins, through another valve into the left ventricle and then up to the Aorta carrying oxygenated blood to the rest of the body and back to the vena cavas.

I hope that helped :)

Answer 2

Blood from the body enters the heart through the superior and inferior vena cava, and travels to the right atrium through the tricuspid valve and right ventricle and pulmonary valve to the lungs. When blood leaves the heart, oxygen is picked up in the lungs, and circulates through the left side of the heart and flows to the rest of the body.

Answer 3

Let's follow the flow of blood starting at the Aorta, the aorta is the main blood vessle that carries O2 rich blood to the vital organs, organs, systems, extremities, muscles, and most importantly the brain. All the above mentioned use the oxygen and give off carbon dioxide as a by product. The CO2 , carried by the blood travels back to the heartand enters the Right Atrium, another beat of the heart, the b;ood now moves through the tricuspid valve to the right ventricle. Remember, this is oxygen poor blood so withamother beat the blood mooves through the pulmonary arteries, (left & Right), to the lungs. Inside the lungs the blood drops off CO2 and picks up O2. The blood at the moment has little pressure so it goes back into the heart through the Pulmonary Veins into the Left Atrium. A beat of the heart sends it into the Left Ventricle. Around this chamber is a large muscle called the Myo Cardium and this muscle gives the pressure needed to push this blood oround the entire body.

Answer 4

all you nedd is faith and trust..oh and a little bit of pixoe dust!****

Answer 5

Correct