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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 <p>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</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Node-10-1-ping.png)
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 <p>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</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Node-10-2-ping.png)
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 <p>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</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Node-10-3-ping.png)
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 <p>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</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Node-10-4-ping.png)
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 <p>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</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Node-10-5-ping.png)
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 <p>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</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Node-10-6-ping.png)
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 > <p>Image taken of a slide from the University of Michigan collection.</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Node-10-7-ping.png)
Image source >
Image taken of a slide from the University of Michigan collection.