What is the pathway of pulmonary and systemic circulation?

The cardiovascular system is composed of two circulatory paths: pulmonary circulation, the circuit through the lungs where blood is oxygenated; and systemic circulation, the circuit through the rest of the body to provide oxygenated blood.

Where does pulmonary circulation begin and end?

The pulmonary circulation begins at the pulmonary valve, marking the vascular exit from the right side of the heart, and extends to the orifices of the pulmonary veins in the wall of the left atrium, which marks the entrance into the left side of the heart.

How does blood flow through the lungs step by step?

The pulmonary artery carries blood to the lungs where it “picks up” oxygen and then leaves the lungs to return to the heart through the pulmonary vein. The blood enters the left atrium, then descends through the mitral valve into the left ventricle.

What is the function of the pulmonary circulation?

The main function of the pulmonary circulation is to oxygenate the blood while the main function of the systemic circulation is to distribute oxygen and nutrients throughout the body while removing the metabolic wastes. This is the difference between pulmonary and systematic circulation.

What is the path of blood in the circulatory system?

The Path of blood through the Circulatory System. Blood circulation begins when the heart relaxes between heart beats. Blood then flows from both upper atrium’s (left atrium and right atrium) into the two lower chambers (left and right ventricles) which then expand.

What are the circulatory routes?

The systemic routes of circulation include every part of the body’s circulatory system which are uninvolved in the pulmonary routes of circulation. The right atrium, the left ventricle, the aortic valve, the aortic branches, all of the capillaries with the exception of those involved with the exchange of gases,…

What is the Order of the pulmonary circulation?

The following summarizes each step in the circulation path: Superior and inferior vena cavae. right atrium. tricuspid valve. right ventricle. pulmonary valve. pulmonary artery. lungs.