
Lymph node: hilum
The hilum is the indented portion of a lymph node where the efferent lymphatics and venules exit and where arterioles enter. The hilum contains a network of anastomosing efferent vessels that receive the lymph passing through the medullary sinuses. Filling the hilum is supporting connective tissue and adipose tissue. 100x

Hilum
The hilum is the indented portion of a lymph node where the efferent lymphatics and venules exit and where arterioles enter. The hilum contains a network of anastomosing efferent vessels that receive the lymph passing through the medullary sinuses. Filling the hilum is supporting connective tissue and adipose tissue. 100x

Sinuses entering hilum
The hilum is the indented portion of a lymph node where the efferent lymphatics and venules exit and where arterioles enter. The hilum contains a network of anastomosing efferent vessels that receive the lymph passing through the medullary sinuses. Filling the hilum is supporting connective tissue and adipose tissue. 100x

Efferent lymphatic vessels
The hilum is the indented portion of a lymph node where the efferent lymphatics and venules exit and where arterioles enter. The hilum contains a network of anastomosing efferent vessels that receive the lymph passing through the medullary sinuses. Filling the hilum is supporting connective tissue and adipose tissue. 100x

Arteriole
The hilum is the indented portion of a lymph node where the efferent lymphatics and venules exit and where arterioles enter. The hilum contains a network of anastomosing efferent vessels that receive the lymph passing through the medullary sinuses. Filling the hilum is supporting connective tissue and adipose tissue. 100x

Medulla
The hilum is the indented portion of a lymph node where the efferent lymphatics and venules exit and where arterioles enter. The hilum contains a network of anastomosing efferent vessels that receive the lymph passing through the medullary sinuses. Filling the hilum is supporting connective tissue and adipose tissue. 100x

Cortex
The hilum is the indented portion of a lymph node where the efferent lymphatics and venules exit and where arterioles enter. The hilum contains a network of anastomosing efferent vessels that receive the lymph passing through the medullary sinuses. Filling the hilum is supporting connective tissue and adipose tissue. 100x

Image source >
Image taken of a slide from the University of Michigan collection.