The vena cava has two parts: the superior vena cava and the inferior vena cava. The superior vena cava carries blood from the head, neck, arms, and chest. The inferior vena cava carries blood from the legs, feet, and organs in the abdomen and pelvis. The vena cava is the largest vein in the body.

What blood does superior vena cava carry?

The superior vena cava carries blood from the brain and arms into the top of the right atrium. The inferior vena cava carries blood from the legs and abdominal cavity into the bottom of the right atrium. The vena cava are also called the “central veins”.

What is the function of the vena cava and aorta?

aorta: The great artery which carries the blood from the heart into systemic circulation. venae cavae: The two large vessels, the superior and inferior vena cava, that bring deoxygenated blood from systemic circulation to the heart.

Where does superior vena cava drains?

The superior vena cava (SVC) starts at the confluence of the brachiocephalic veins behind the first right costal cartilage, and ends at the level of the third right costal cartilage where it drains into the right atrium.

Where is the vena cava vein?

The inferior vena cava (IVC) is the largest vein of the human body. It is located at the posterior abdominal wall on the right side of the aorta. The IVC’s function is to carry the venous blood from the lower limbs and abdominopelvic region to the heart.

What two veins merge to form the superior vena cava?

On each side, the subclavian vein, the principal vein of the upper extremity, joins with the internal jugular, the principal vein of the head and neck, here, behind the medial end of the clavicle, forming the brachiocephalic vein. The two brachiocephalic veins enter the thorax and unite, forming the superior vena cava.

What does superior vena cava drain?

The superior vena cava drains from the left and right brachiocephalic veins into the right atrium.

What is the difference between aorta and vena cava?

Aorta is the main or the largest artery which carries oxygenated blood from the heart to the whole body. Vena cava is the large veins that bring deoxygenated blood from the body to the heart.

What does the IVC drain into?

Inferior vena cavaSourcecommon iliac vein lumbar veins testicular vein renal vein suprarenal vein hepatic veinDrains toRight atriumArteryabdominal aortaIdentifiers

Which is bigger aorta or vena cava?

Aorta is the main artery of the body, which begins at the left ventricle of the heart. Vena Cava is the largest type of vein in the body, which drains deoxygenated blood from the body to the right atrium of the heart.

Article first time published on

What is the function of vena cava in kidney?

The main blood vessel that carries blood from the kidney and ureter to the inferior vena cava (a large vein that carries blood to the heart from the lower part of the body).

What is the largest vein in the human body?

The largest vein in the human body is the inferior vena cava, which carries deoxygenated blood from the lower half of the body back up to the heart.

What body system does the vena cava belong to?

function in cardiovascular system The inferior vena cava is a large, valveless, venous trunk that receives blood from the legs, the back, and the walls and contents of the abdomen and pelvis.

What is the superior vena cava quizlet?

Superior vena cava. The superior vena cava is one of the two main veins bringing de-oxygenated blood from the body to the heart. Veins from the head and upper body feed into the superior vena cava, which empties into the right atrium of the heart.

Where does the superior vena cava bring blood from?

The superior vena cava is the large vein that brings blood from the head and arms to the heart, and the inferior vena cava brings blood from the abdomen and legs into the heart.

Why does the superior vena cava have no valves?

The superior and inferior vena cava and the pulmonary arteries have no valves because no back flow of blood is there in them as the blood is flowing from them into the atrium.

What is the name of the large vein that drains blood from the body from above the diaphragm quizlet?

The superior epigastric vein refers to a blood vessel that carries deoxygenated blood and drains into the internal thoracic vein. It anastomoses with the inferior epigastric vein at the level of the umbilicus and drains the anterior part of the abdominal wall and some of the diaphragm.

What is the largest vein in the neck?

When the jugular vein is visible, it’s known as jugular vein distention (JVD). Internal and external jugular veins run along the right and left sides of your neck. They bring blood from your head to the superior vena cava, which is the largest vein in the upper body.

Does the IVC run through the liver?

Hepatic veinsMeSHD006503TA98A12.3.09.005TA24994FMA14337

What causes IVC thrombosis?

A significant cause of an IVC thrombosis is occlusion of an IVC filter which is becoming more prevalent due to the increased placement of these devices. Trauma is also a cause of inferior vena cava thrombosis. The injury can occur during percutaneous cannulation of the femoral vein or during cardiopulmonary bypass.

Why is the superior vena cava thicker?

The aorta has significantly thicker walls than the superior and inferior vena cava as the artery is an artery that must respond to signifcant pressures whereas the vena cava are veins that have minimal intraluminal pressure.

Which is thicker superior or inferior vena cava?

The inferior vena cava is the largest vein in the human body. … Although the vena cava is very large in diameter, its walls are incredibly thin due to the low pressure exerted by venous blood. The inferior vena cava forms at the superior end of the pelvic cavity when the common iliac veins unite to form a larger vein.

What is the difference between right ventricle and left ventricle?

Main Difference – Left vs Right Ventricle Left ventricle receives blood from the left atrium and pumps blood to the aorta to the body. Right ventricle receives blood from the right atrium and pumps blood to the pulmonary artery. Left ventricle carries oxygenated blood while right ventricle carries deoxygenated blood.

What are the 4 major arteries?

By definition, an artery is a vessel that conducts blood from the heart to the periphery. All arteries carry oxygenated blood–except for the pulmonary artery. The largest artery in the body is the aorta and it is divided into four parts: ascending aorta, aortic arch, thoracic aorta, and abdominal aorta.

What are the 5 major arteries?

• The aorta.
• The arteries of the head and neck. The common carotid artery. The external carotid artery. …
• The arteries of the upper extremity. The subclavian artery. The axilla. …
• The arteries of the trunk. The descending aorta. …
• The arteries of the lower extremity. The femoral artery.

What vein carries deoxygenated?

Blood vesselFunctionVena cavaCarries deoxygenated blood from the body back to the heart.Pulmonary arteryCarries deoxygenated blood from the heart to the lungs.Pulmonary veinCarries oxygenated blood from the lungs to the heart.AortaCarries oxygenated blood from the heart around the body.

Why is the inferior vena cava important?

The inferior vena cava is ultimately responsible for the transport of almost all venous blood (deoxygenated) from the abdomen and lower extremities back to the right side of the heart for oxygenation.

Why do veins look blue?

Veins appear blue because blue light is reflected back to our eyes. … Blue light does not penetrate human tissue as deeply as red light does. As a result, veins that are close to the surface of the skin will be more likely to reflect blue light back to the eye.”

Which vein drains the ankle and foot?

In human anatomy, there are two anterior tibial veins. They originate and receive blood from the dorsal venous arch, on the back of the foot and empties into the popliteal vein. The anterior tibial veins drain the ankle joint, knee joint, tibiofibular joint, and the anterior portion of the lower leg.

What vein drains blood from the face and scalp?

External jugular vein: The more superficial of the two jugular veins situated on each side of the neck. The other is the internal jugular vein. They drain blood from the head, brain, face and neck and convey it toward the heart.

Why is it called vena cava?

The human heart and nearby structures, with superior and inferior vena cava labeled at left side of image. The venae cavae (/ˈviːni ˈkeɪvi/; from the Latin for “hollow veins”, singular “vena cava” /ˈviːnə ˈkeɪvə/) are two large veins (great vessels) that return deoxygenated blood from the body into the heart.