What is the flow of blood inside the human heart?

Answer 1

Deoxygenated blood enters the right atrium via the vena cava, then passes through the tricuspid valve to the right ventricle. The blood is then pumped via this ventricle via the pulmonary arteries to the lungs to pick up oxygen. Oxygen-rich blood returns to the left atrium of the heart via the pulmonary veins and passes via the mitral valve to the left ventricle. This powerful pump then sends the blood through the aortic valve to the aorta and on to the entire body to nourish all living tissue and cells

Answer 2

heart have 2 work mechanism contraction and relaxation during relaxation blood enter the atium then atrium contract to push this blood into ventricles and each ventricle have a function: the right ventricle contain the blood rich with oxygen and this ventricle will pump it to aorta to deleiver oxygen to all body parts............. the left one include oxygen-poor blood and pump it to the pulmonary artery to the lungs................. from:jane

Answer 3

Pulmonary Circulation Deoxygenated dark red blood is transported through the superior vena cava from above the diaphragm and inferior vena cava from below the diaphragm (both are veins) to the right atrium of the heart. The contraction of right atrium causes the blood to be passed to the right ventricle through the tricuspid valve. The tricuspid valve prevents back flow of the blood to the right atrium. The right ventricle pumps the blood through the pulmonary trunk (artery) to the right and left lung. The pulmonary valve located in the trunk prevents the back flow of blood to the right atrium. The scarlet red oxygenated blood enters the left atrium through pulmonary veins.

Systemic Circulation
The oxygenated blood is passed into the left ventricle through the mitral valve. The pressure in the left ventricle causes the mitral valve to close and the left ventricle pumps the blood the rest of aorta. The aortic valve prevents the back flow of blood from aorta.


Coronary Circulation
The shortest circulation in the body. Right and left coronary artery are arising from the base of the aorta and divides into marginal artery and circumflex artery respectively. The right and left arteries also divide into posterior interventricular artery and anterior interventricular artery respectively. These arteries supply the cardiac muscle with oxygen and uses 5% of the total blood supply.