Nerves of Pelvis I and II Flashcards
What devisions of nerves makes up the lumbosacral trunk?
L4-L5
What branches of the nerves make up the acessory obtorator?
L3-L4
What nerves make up the sacral plexus?
Sciatic, pudendal, superior gluteal, and inferior gluteal.
What nerve levels make up the sciatic nerve
L4-S3
What nerve levels make up the pudendal nerves?
S2-S4
What nerve levels make up the superior gluteal?
L4-S1
What nerve levels make up the inferior gluteal?
L5-S2
What foramen does the sciatic nerve exit through?
The greater sciatic foramen
What foramen does the pudendal nerve exit through?
Exits pelvis via greater sciatic foramen and then enters the perineum via the lesser sciatic foramen.
What foramen does the superior gluteal nerve exit through?
This guy exits through the greater sciatic foramen
What foramen does the inferior gluteal nerve exit through?
This guy exits through the greater sciatic foramen and innervates the gluteus maximus
What area does the pudendal nerve innervate?
The skin and muscles of the perineum acting as the main sensory nerve for the external genitalia.
What area does the superior gluteal nerve innervate?
Supplies the gluteus medius, minimus, and tensor fascia latae.
What area does the inferior gluteal nerve innervate?
Just innervates the gluteus maximus.
What nerve levels make up the coccygeal plexus?
The ventral rami of S4-S5 and coccygeal nerves
