Question

Which of the following blood vessels contains oxygenated blood?
A) Hepatic vein
B) Pulmonary vein
C) Hypophyseal portal vein
D) Renal vein

Answer 1

Hint: Blood vessels are tubular structures that carry blood through the tissues and organs. The three blood vessels in the human body are vein, artery, and capillary.

Complete Answer:
- Pulmonary veins are part of pulmonary circulation. The largest pulmonary veins are the four main pulmonary veins, two from each lung that drains into the left atrium of the heart. The lungs are purifiers of the blood that filter out the blood.
- Pulmonary veins drain this filtered or oxygenated blood to the atrium of the heart. From there, the blood is pumped and undergone in the systemic circulation.
- Systemic circulation is the flow of blood from the heart to the body tissues and vice versa.

So, the pulmonary vein is the answer.

Additional information: Veins are the blood vessels that carry blood to the heart.
- Generally, veins carry deoxygenated blood but pulmonary veins are the exception as they carry the oxygenated blood.
- The hepatic veins are useful to drain the deoxygenated blood from the liver into the inferior vena cava
- The hypophyseal portal vein lies in the brain part. It has a major role in carrying hormones between the pituitary gland and the hypothalamus arcuate nucleus.
- The renal vein is useful to drain the blood from the kidneys to the inferior vena cava.

Note: The entire cardiovascular system is divided into two phases, pulmonary circulation, and systemic circulation.