Gluteal Region Flashcards
What are the superior and inferior boundaries of the gluteal region?
iliac crest and gluteal sulcus.
What ligaments form important foramina for the passage of structures into and out of the gluteal region?
Greater sciatic foramen
Lesser sciatic foramen
What exits the greater sciatic foramen?
Gluteal neurovascular bundles
Piriformis muscle
Sciatic nerve
Posterior femoral cutaneous nerve
pudenal and internal pudenal nerves
obturator internus/superior gemellus nerve
What enters and exits the lesser sciatic foramen?
pudenal nerve, internal pudenal nerve, obturator internus/superior gemellus nerve (enter)
obturator internus (exits)
What are the two major classifications of nerves in the gluteal region?
cluneal nerves and deep nerves (from the sacral plexus)
The superior and middle clunearl nerves arise from what regions of the dorsal rami?
lateral branches
The superior and middle cluneal nerves supply what areas?
superior 2/3, sacrum and adjacent area
The inferior cluneal nerves supply what area?
inferior 1/3 of gluteal region.
What comprises the inferior cluneal nerves?
Gluteal branchs of posterior femoral cutaneous nerve (S1 - S3 ventral rami branches)
Where does the superior glutreal nerve run between?
gluteus medius and gluteus minimus
The superior gluteal nerve leaves the pelvis with what artery?
superior gluteal artery.
What does the superior gluteal nerve supply?
gluteus medius, gluteus minimus, tensor fasciae latae
What does the inferior gluteal nerve supply?
gluteus maximus
What artery does the inferior gluteal nerve leave the pelvis with?
inferior gluteal artery
The sciatic nerve arises from what roots?
L4 - S3 ventral rami
What is the largest nerve in the body?
sciatic nerve
True or false: the sciatic nerve supplies gluteal structures.
False
The sciatic nerve leaves the pelvis inferior to what muscle?
piriformis
Where does the sciatic nerve run inferiorly to?
gluteus maximus
You encounter a patient who has dislocated their hip during a car accident. The hip dislocation caused paralysis of hamstrings and muscles distal to the knee. What nerve has most likely been affected?
sciatic nerve
What roots doe the posterior femoral cutaneous nerve arise from?
S1 - S3.
What nerve supplies more skin than any other cutaneous nerve?
posterior femoral cutaneous nerve
What roots does the quadraturs/inferior gemellus nerve arise from?
L4 - S1
What roots does the obturator internus/superior gemellus nerve arise from?
L5 - S2
The obturator internus/superior gemellus leaves the pelvis via what foramen?
greater sciatic foramen
Where does the obturator internus/superior gemellus nerve reenter the pelvis?
lesser sciatic foramen