Afferent lymphatic vessels
Bring lymph into the lymph node
Efferent lymphatic vessels
Exit point for lymph as it leaves the lymph node
Capsule
Dense connective tissue that surrounds the lymph node
Sinus
a. Regions where the lymph drain into the lymph node
Lymphoid follicle
Clusters of B cells (and T cells and macrophages)
Hilum
On concave part, space where the efferent lymphatic vessels exit the lymph node