Inferior mesenteric ganglion

The Inferior Mesenteric Ganglion is a part of the Autonomic Nervous System that plays a crucial role in the functioning of the human body. It is a ganglion (a group of nerve cell bodies) located in the abdominal region.

Anatomy

The Inferior Mesenteric Ganglion is typically located near the origin of the Inferior Mesenteric Artery. It is one of the three collateral ganglia of the Sympathetic Nervous System, the other two being the Celiac Ganglion and the Superior Mesenteric Ganglion.

Function

The Inferior Mesenteric Ganglion primarily provides sympathetic innervation to the hindgut. This includes the distal third of the Transverse Colon, the Descending Colon, the Sigmoid Colon, the Rectum, and the upper half of the Anal Canal. It also provides innervation to the internal and external sexual organs.

Clinical Significance

Damage or disease affecting the Inferior Mesenteric Ganglion can lead to various medical conditions. For instance, it can cause gastrointestinal disorders such as constipation, diarrhea, or abdominal pain. It can also affect sexual function due to its role in innervating the sexual organs.

See Also

• Sympathetic Nervous System
• Autonomic Nervous System
• Inferior Mesenteric Artery
• Ganglion

References

• Gray's Anatomy: The Anatomical Basis of Clinical Practice, 41st Edition
• Human Anatomy & Physiology, 10th Edition by Elaine N. Marieb and Katja Hoehn

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