The inferior vena cava is also referred to as the posterior vena cava. It’s the largest vein in the human body. The inferior vena cava carries deoxygenated blood from the lower body to the heart. Deoxygenated blood means most of the oxygen has been removed by tissues, and therefore the blood is darker.
What is the function of vena cava and what is it?
The venae cavae are the two largest veins in the body. These blood vessels carry oxygen-depleted blood from various regions of the body to the right atrium of the heart. The superior vena cava delivers blood from the head and chest area to the heart, while the inferior vena cava returns blood from the lower body regions to the heart.
What is the role of superior vena cava?
The superior vena cava is a vital structure in the human circulatory system that helps drain large amounts of deoxygenated blood from the head, eyes, neck, and upper limbs into the upper left chamber (atrium) of the heart.
What do veins return blood to the superior vena cava?
Vena cava: The superior vena cava is the large vein which returns blood to the heart from the head, neck and both upper limbs. The inferior vena cava returns blood to the heart from the lower part of the body.
What vein drains into the superior vena cava?
A large vein, the azygos, which receives oxygen-poor blood from the chest wall and the bronchi, opens into the superior vena cava close to the point at which the latter passes through the pericardium, the sac that encloses the heart.
What is the function of the inferior vena cava?
The vena cava’s function is to ensure the proper operation of the circulatory system. Each vena cava brings blood back to the heart from elsewhere in the body. The inferior vena cava transports blood from the kidneys, genitals, abdomen and liver. The venae cavae are essential parts of the circulatory system.
What is Vana Cava?
Answer Wiki. Vana cava is the vein that carries deoxygenated blood collected from your body into the right atrium of your heart. The superior vena cava brings in deoxygenated blood from the upper part of the body (head, neck, arms; organs above the diaphragm).
How does the vena cava help the body?
Once the blood has been re-oxygenated, this bright red, oxygen-rich blood will be returned to the lower body through the descending aorta. In this way, the inferior vena cava helps the body control its blood flow and oxygen levels by moving blood from the lower body to the heart for oxygen exchange.
What is the posterior vena cava?
The anterior vena cava, also known as the precava, drains the head end of the body, while the posterior vena cava, or postcava, drains the tail, or rear, end. In humans these veins are respectively called the superior and inferior venae cavae. Whereas many mammals, including humans, have only one anterior vena cava, other animals have two.