MICROANATOMY

Detailed explanation-1: -The pulmonary circuit: This circuit carries blood without oxygen from the heart to the lungs. The pulmonary veins return oxygenated blood to the heart. The systemic circuit: In this circuit, blood with oxygen, nutrients and hormones travels from the heart to the rest of the body.

Detailed explanation-2: -In single circulation, blood flows to and from the heart through a single pathway, whereas in double circulation there are two separate pathways that are connected to the heart through which oxygenated and deoxygenated blood flows.

Detailed explanation-3: -It is called a double circulatory system because blood passes through the heart twice per circuit. The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns back to the heart. The left pump sends the newly oxygenated blood around the body.