Final answer:
The inferior mesenteric ganglion is related to the sympathetic nervous system and is involved in controlling organs in the abdominal cavity.
Step-by-step explanation:
The inferior mesenteric ganglion is related to the sympathetic nervous system in the human body. It is one of the three collateral ganglia of the sympathetic system, along with the celiac ganglion and the superior mesenteric ganglion. The ganglion projects to the digestive system and is involved in controlling organs in the abdominal cavity.