Venous arch意思

"Venous arch" is a term used in anatomy to describe the arch-like structure formed by the confluence (coming together) of two large veins. It typically refers to the junction where the internal jugular vein and the subclavian vein meet to form the brachiocephalic vein (also known as the innominate vein) on each side of the body.

The brachiocephalic veins are the largest veins in the head and neck region, and they carry deoxygenated blood from the head, neck, and upper limbs back to the heart. They eventually drain into the superior vena cava, which is one of the two main veins that return blood from the upper body to the heart.

The term "arch" in this context refers to the curved or arched shape formed by the veins as they join together. This structure is an important landmark in the venous system and plays a crucial role in the circulation of blood.