Superior vena cava

This tutorial by Matt from Kenhub covers the superior vena cava (SVC), a major vein in the body. It explains the SVC's location, formation from the brachiocephalic veins, and its role in returning deoxygenated blood to the heart. The tutorial also discusses the SVC's anatomical position, its lack of a valve separating it from the right atrium, and its significance in the circulatory system. The SVC is highlighted in an anatomical image, and its function in relation to the inferior vena cava is also described.

What is the embryological origin of the superior vena cava?

• Coronary sinus

• Left and right brachiocephalic veins

• Azygos vein

• Pulmonary veins

Which of the following statements is true about the superior vena cava's connection to the heart?

• It has a valve separating it from the right atrium.

• It is connected to the left ventricle.

• It is connected to the left atrium.

• It lacks a valve separating it from the right atrium.

Where does the superior vena cava begin in relation to the costal cartilages?

• In front of the third right costal cartilage

• Behind the upper border of the second left costal cartilage

• Behind the lower border of the first right costal cartilage

• Below the fourth left costal cartilage

What is the primary function of the superior vena cava?

• To supply oxygenated blood to the brain

• To return deoxygenated blood from the upper body to the heart

• To transport nutrients to the liver

• To drain lymphatic fluid from the thoracic duct

Which structure covers the lower half of the superior vena cava?

• Fibrous pericardium

• Aortic arch

• Pleura

• Diaphragm