Nerves of the Pelvis Flashcards
This is the most important way that sympathetic fibers get to the pelvis
Hypogastric Plexus
What do the SYMPATHETIC fibers of the of the Hypogastric Plexus merge with?
Parasympathetic Pelvic Splanchnics
Where does the hypogastric plexus go?
-To the pelvic organs
This sends gray rami to the Sciatic nerve
Sacral sympathetic trunk
What do the nerves of the sympathetic trunk travel to?
The lower limb
Where is the highest Sacral Sympathetic Trunk nerve?
L2/3
What is the pathway that the nerves in the sacral sympathetic trunk takes?
Sacral sympathetic trunk
- get to the cord and synapse
- travels to the lower limb
These supply parasympathetic branches to the descending colon/sigmoid colon/rectum/and vagina and other external genitalia
Pelvic Splanchnic nerves
What are the 3 autonomic nerves of the pelvis
- Hypogastric Plexus
- Sacral Sympathetic Truck
- Pelvic Splanchnics
This nerve carries branches of L4-S3 and it innervates the leg and the foot
Sciatic Nerve
This nerve carries S2-S4 fibers and it is the main nerve of the perineum
Pudenal Nerve
The pudenal nerve has motor branches that go to…
- Perineal muscles
- External sphincters
The pudenal nerve supplies sensory to…
External genitalia
What is the pathway of the pudenal nerve
-Through GSF–> Around the ischeal spine and sacrotuberous ligament–> LSF of the perineum
This is a lumbar plexus nerve
-Only nerve that dips though the true pelvis
Obturator nerve
