Question

blood flow through the heart
the heart is a muscle that pumps blood throughout your body and beats 60 to 100 beats per minute depending on your age and health. the heart pumps blood to your lungs so it can pick up oxygen. it then pumps the blood to the body so oxygen can be dropped off to our cells. oxygen diffuses through the capillaries to our cells. it goes from high concentration in the blood to a low concentration in our cells. after dropping off oxygen to our cells the blood returns to the heart so it can be pumped to the lungs to pick up more oxygen. the process repeats thousands of times a day to keep you alive. arteries take blood away from the heart and veins take blood to the heart. the heart has four parts or chambers. the top chambers are called atrium, the bottom chambers are called ventricles. atrium receives the blood into the heart and the ventricles pump blood away from the heart. the left and right side of the heart is separated by the septum. blood passes from the atria to the ventricles through valves that open and close as the heart pumps. the valves open correctly for the blood to empty from the chambers, and close properly so blood does not flow the wrong way. the valves assure that the rest of the body get the right amount of blood. blood is taken to our body via the aorta, the main artery in the body. it beats faster, if necessary, when the body is need of oxygen, or slower while a person sleeps who would need less oxygen. the heart is separated by the septum, a muscular wall that separates the heart four chambers. the right atrium and right ventricle contains deoxygenated (lower concentration of oxygen) blood and the left side receives oxygenated (high concentration of oxygen) blood.

1. what part of the heart receives blood?
2. what part of the heart pumps blood away from the heart?
3. what is the function of heart valves?
4. what is the function of the septum?
5. which part of the heart receives oxygenated blood? which side of the heart receives deoxygenated blood?

Explanation:

1.

From the text: "Atrium receives the blood into the heart". So the part that receives blood is the atrium.

The text says: "ventricles pump blood away from the heart". So the part is ventricles.

As per the text: "The valves open correctly for the blood to empty from the chambers, and close properly so blood does not flow the wrong way. The valves assure that the rest of the body get the right amount of blood." So their function is to let blood empty from chambers, prevent backflow, and ensure proper blood amount to the body.

Answer:

Atrium

2.