PATHOLOGY

Detailed explanation-1: -The lymphatic vessels drain into collecting ducts, which empty their contents into the two subclavian veins, located under the collarbones. These veins join to form the superior vena cava, the large vein that drains blood from the upper body into the heart.

Detailed explanation-2: -The right lymphatic duct receives lymph from the right side of the head, neck and thorax and right upper limb. It drains into the systemic venous system at the junction of the right internal jugular and right subclavian vein or right brachiocephalic vein within the neck.

Detailed explanation-3: -It runs from the superior aspect of the cisterna chyli, a lymph sac at the L2 vertebral level, to the lower cervical spine. From the cisterna chyli, the duct continues superiorly, running between the aorta and the azygous vein and anterior to the vertebral column.