Ascending aorta
right ventricle
Four main blood vessels enter/exit the heart: two veins and two arteries. Oxygenated blood enters the left ventricle through the pulmonary vein. This same blood is then pumped out of the left atrium via the aorta. Meanwhile, de-oxygenated blood enters the heart in the vena cava; before leaving through the pulmonary artery.
Aorta
deoxygenated
The blood leaving the left ventricle is oxygen-rich and the blood coming out of the right ventricle is oxygen-poor. It then goes through the pulmonary arteries and into the capillaries of the lung where the carbon dioxide is exchanged for oxygen.
the four major parts of the heart are the right atrium, left atrium, right ventricle & left ventricle ..
The LEFT ventricle and pulmonary artery are not connected by a valve. The RIGHT ventricle is connected by the pulmonic valve. The mitral valve separates the left atrium from the left ventricle and the tricuspid valve seperates the right atrium from the right ventricle.
Because God made it that way
right ventricle then on to the pulmonary circulation, to the left atrium, left ventricle then to the body systems back to the right atrium.
The left Ventricle pumps blood out to your body
Right ventricle, left ventricle, right atrium, left atrium.
The MAJOR organs in the circulatory system are three. Heart, Lungs, and Brain. Without any one of these three organs the circulatory system ceases to function. Actually, Left ventricle pumps blood to body through the vessels, goes to right atrium, goes to right ventricle where it goes through the lung to get oxygen, goes to left atrium, then back to left ventricle. Brain is nervour system, lungs are respitory system.