IMMUNOLOGY

Detailed explanation-1: -The major lymphatic vessels are: the thoracic duct: It begins near the lower part of the spine and collects lymph from the pelvis, abdomen, and lower chest. The thoracic duct runs up through the chest and empties into the blood through a large vein near the left side of the neck.

Detailed explanation-2: -Efferent vessels of the supraclavicular lymph nodes and the deep lateral cervical lymph nodes come together to form the jugular trunk on each side. The jugular trunk transports lymph from the head and neck to the thoracic duct on the left and to the right lymphatic duct on the right.

Detailed explanation-3: -The thoracic duct collects most of the lymph in the body other than from the right thorax, arm, head, and neck. These are drained by the right lymphatic duct.