Trabecular veins

Trabecular Veins

The trabecular veins are a network of veins located within the spleen. They are part of the venous drainage system of the spleen, which is an important organ in the lymphatic system and plays a role in immune response and the recycling of red blood cells.

Anatomy

The trabecular veins are found within the trabeculae of the spleen. The trabeculae are fibrous bands that extend from the capsule of the spleen into its interior, providing structural support. The veins run alongside the trabecular arteries, which supply blood to the spleen.

The trabecular veins collect blood from the splenic sinuses, which are part of the red pulp of the spleen. The blood then drains into the larger splenic vein, which eventually joins the portal vein system.

Function

The primary function of the trabecular veins is to facilitate the drainage of deoxygenated blood from the spleen. This process is crucial for the removal of old or damaged red blood cells and the recycling of iron and other components.

Clinical Significance

Disorders affecting the trabecular veins can impact the overall function of the spleen. Conditions such as splenomegaly (enlargement of the spleen) can affect the venous drainage and lead to complications like portal hypertension.

Images

Diagram of the spleen showing the trabecular veins.

Cross-section of the spleen illustrating the trabecular structure.

Related Pages

• Spleen
• Splenic vein
• Portal vein
• Lymphatic system