MICROANATOMY

Detailed explanation-1: -Lymph enters a lymph node through several afferent lymphatic vessels. It then passes through the cortex, paracortex and medulla of the node, and exits on the opposite side through a single efferent lymphatic vessel.

Detailed explanation-2: -Lymph enters the node (arrow) through afferent lymphatic vessel(s) (Af). It then moves to subcapsular sinus (SCS), which can then go to either B cell follicles (BF) and T cell cortex (TC) through central path, or directly to medullary sinuses (MS) through peripheral path.

Detailed explanation-3: -Lymphatic vessels: Lymphatic vessels are the network of capillaries (microvessels) and a large network of tubes located throughout your body that transport lymph away from tissues. Lymphatic vessels collect and filter lymph (at the nodes) as it continues to move toward larger vessels called collecting ducts.

Detailed explanation-4: -There is no pump in the lymphatic system like the heart in the cardiovascular system. The pressure gradients to move lymph through the vessels come from the skeletal muscle action, respiratory movement, and contraction of smooth muscle in vessel walls.