a valve
Blood and oxgyn
The blood and are you studing that?
In the cardiac cycle, blood flowing into the heart is called the systole.
I dont know. Stop asking stupid questions i need to do something for school in which i need the answer to this question. Go ask your parents, then tell me. Get a life.
The valve
The valve
All the blood flowing through the intestines passes through the liver on its way back to the heart.
There are valves in the heart - and the larger blood vessels that stop the blood flowing backwards.
The Arteries carry the blood away from the heart to the other organs and the veins bring it back when the blood has no more nutrients. From Unkown
2 of these valves (one on each side) stop blood from flowing back into the atria chambers of the heart when the heart is contracting and expelling blood. The other two are there to stop blood flowing out of the ventricles when the heart is filling up with blood. One stops blood flowing through the aorta to supply the body and the other stops it flowing through the pulmonary artery to the lungs.
The heart pumps blood to different parts of the body through small tubes called blood vessels. The human body has two circulatory systems. Pulmonary Circulation and Systemic Circulation. Pulmonary Circulation - blood flows from the heart to the lungs and then back from lungs to heart. Systemic Circulation - blood flows from the heart to other organs in the body and back from other organs to the heart.
Valves