MICROANATOMY

Detailed explanation-1: -The left and right brachiocephalic vein join to form the superior vena cava on the right side of the upper chest. These vessels are a vital component of the human circulatory system, aiding in drainage of deoxygenated blood from the head and upper limbs.

Detailed explanation-2: -The superior vena cava (SVC) in healthy adults is formed by fusion of right and left brachiocephalic trunks.

Detailed explanation-3: -The left and right brachiocephalic vein course towards the midline and unite at the level of the inferior border of the 1st right costal cartilage to form the superior vena cava.

Detailed explanation-4: -Your right and left brachiocephalic veins merge to form your superior vena cava. This large vein is located above your heart, and it extends downward to drain blood into your right atrium (top right heart chamber). From there, your blood flows through the right side of your heart and into your lungs to gain oxygen.