GENERAL HISTOLOGY

Detailed explanation-1: -Lymph vessels that carry lymph to a lymph node are called afferent lymph vessels, and those that carry it from a lymph node are called efferent lymph vessels, from where the lymph may travel to another lymph node, may be returned to a vein, or may travel to a larger lymph duct .

Detailed explanation-2: -Afferent lymphatic vessels flow into a lymph node and carry unfiltered lymph fluid. Efferent lymphatic vessels flow out of a lymph node and carry filtered lymph fluid. Lymph vessels that leave the thymus or spleen (which lack afferent vessels) also fall into this category.