The pararectal lymph nodes are

lymph nodes A lymph node, or lymph gland, is a kidney-shaped Organ (anatomy), organ of the lymphatic system and the adaptive immune system. A large number of lymph nodes are linked throughout the body by the lymphatic vessels. They are major sites of lymphoc ...

that are in contact with the muscular coat of the

rectum The rectum (: rectums or recta) is the final straight portion of the large intestine in humans and some other mammals, and the gut in others. Before expulsion through the anus or cloaca, the rectum stores the feces temporarily. The adult ...

Structure

The pararectal lymph nodes are located on the left and right of the

. Their efferent lymph ducts pass to the pre-aortic lymph nodes.

Function

The pararectal lymph nodes drain the descending iliac and

sigmoid Sigmoid means resembling the lower-case Greek letter sigma (uppercase Σ, lowercase σ, lowercase in word-final position ς) or the Latin letter S. Specific uses include: * Sigmoid function, a mathematical function * Sigmoid colon, part of the l ...

parts of the

large intestine The large intestine, also known as the large bowel, is the last part of the gastrointestinal tract and of the Digestion, digestive system in tetrapods. Water is absorbed here and the remaining waste material is stored in the rectum as feces befor ...

, and the upper part of the

References

External links

* http://anatomy.uams.edu/AnatomyHTML/lymph_pelvis&perineum.html Lymphatics of the torso Rectum {{Portal bar, Anatomy

Structure

Function

See also

References

External links