Types Of Circulation: Pulmonary, Systemic, And Portal

Types Of Circulation: Pulmonary, Systemic, And Portal

Question 1. What are types of circulation? Describe each type in brief.
Answer.          

There are two types of circulation:

• Pulmonary
• Systemic

Pulmonary circulation

Pulmonary trunk and pulmonary arteries anatomy

In pulmonary circulation, the blood is pumped by the heart into the lungs through pulmonary trunk for oxygenation and then the oxygenated blood is returned to the heart via pulmonary veins.

Systemic circulation

Oxygenated blood return via pulmonary veins

In systemic circulation, the oxygenated blood is pumped by the heart to the entire body through arteries and then the deoxygenated blood is returned to the heart via veins.

Read And Learn More: Selective Anatomy Notes And Question And Answers

Question 2. Discuss the portal circulation in brief.
Answer.

The portal circulation begins and ends with capillaries, i.e. blood passes through two sets of capillaries before it is drained into a systemic vein. The vessels connecting two sets of capillaries are called portal vessels.

The portal circulation is seen in the liver, hypophysis cerebri, kidney and suprarenal gland, where it is termed hepatic portal circulation, hypothalamo-hypophyseal portal circulation, renal portal circulation and suprarenal portal circulation, respectively.