The pulmonary circulatory consists of circuits that are involved in the circulation of deoxygenated blood received from different body parts except for the lungs.
This deoxygenated blood is pumped out by the right ventricle of the heart to the pulmonary arch through which it reaches to lungs for oxygenation.
The oxygenated blood is then returned to the left of the heart by pulmonary veins.
The human heart consists of a double circulatory system with a 4 chambered heart.
The double circulatory system consists of two circuits namely- the systemic circuit and the pulmonary circuit system.