Gluteal Region and Hip Joint Flashcards
Innominate Medial View


Innominate Lateral View


Greater and Lesser sciatic foramina


Angles of the Femur


Proximal Femur (anterior)


Proximal Femur (posterior)


Muscles of Gluteal Region
Lateral Rotators of Hip (5)
Gluteus maximus (extensor)
Piriformis
Obturator internus
Gemelli
Quadratus Femoris
Muscles of Gluteal Region
Medial Rotators and Abductors of the Hip (2)
Gluteus Medius
Gluteus Minimus
Muscles of Gluteal Region
Support
Tensor fasciae latae
Gluteus Maximus
Attachments

Sacrum, S/T ligament and ilium behind posterior gluteal line to the ilitibial tract (3/4) and gluteal tuberosity of femur (1/4)

Gluteus Maximus
Function

Extends hip and assists lateral rotation

Gluteus Maximus
Innervation

Inferior gluteal nerve (L5, S1, S2)

Tensor Fasciae Latae
Attachments

Anterior iliac crest and ASIS to the iliotibial tract

Tensor Fasciae Latae
Function

Tenses fasciae latae and iliotibial tract, and supports the femur on the tibia during standing

Tensor Fasciae Latae
Innervation

Superior Gluteal nerve (L4, L5, S1)

Gluteus Medius
Attachments

Ilium between posterior and anterior gluteal lines to the greater trochanter of the femur (lateral surface)

Gluteus Medius
Function

Abducts and medially rotates hip

Gluteus Medius
Innervation

Superior gluteal nerve (L4, L5, S1)

Gluteus Minimus
Attachments

Ilium between anterior and inferior gluteal lines to the greater trochanter of the femur (anterior surface)

Gluteus Minimus
Function

Abducts and medially rotates hip

Gluteus Minimus
Innervation

Superior gluteal nerve (L4, L5, S1)

Piriformis
Attachments

Anterior Sacrum and S/T ligament to the greater trochanter of the femur (superior border)

Passes through the greater sciatic foramen
Piriformis
Function

Laterally rotates hip

Piriformis
Innervation

Nerve to Piriformis (Anterior rami of L5, S1, S2)

Obturator Internus
Attachments

Pelvic surface of obturator membrane and surrounding bones to the medial side of the greater trochanter (trochanteric fossa)

Passes through the lesser sciatic foramen
Obturator Internus
Function

Laterally rotates hip

Obturator Internus
Innervation

Nerve to obturator internus (L5, S1)

Gemelli
Attachments (Superior and Inferior)

Superior: Ischial Spine
Inferior: Iscial Tuberosity
Both blend with the tendon of Obturator Internus

Gemelli
Function

Laterally rotate hip

Gemelli
Innervation (Superior and Inferior)

Superior: Nerve to obturator internus
Inferior: Nerve to quadratus femoris

Quadratus Femoris
Attachments

Ischial tuberosity to the quadrate tubercle on the intertrochanteric crest of the femur

Quadratus Femoris
Function

Laterally rotates hip

Quadratus Femoris
Innervation

Nerve to quadratus femoris (L5, S1)

Obturator Externus
Attachments

Outer surface of obturator membrane to the trochanteric fossa

Obturator Externus
Function

Laterally rotates hip

Obturator Externus
Innervation

Obturator nerve (L3, L4)

Sciatic Nerve
Tibial Branch

Always leaves below piriformis

Sciatic Nerve
Common Peroneal Branch

May leave below, above, or through piriformis

Sciatic Nerve
Root Value

L4, 5, S1, 2, 3

Gluteal Vessels and nerve

Superior gluteal artery and nerve, and inferior gluteal artery and nerve

Posterior Cutaenous Nerve of Thigh
Location and Root Value
Lies on posterior aspect of sciatic nerve (S1,2,3).
Inferior Clunial nerves to skin of inferior half of buttock
Cutaneous Neves in the Gluteal and Posterior Thigh


Hip Joint Articular Surfaces


Iliofemoral Ligament
Attachments

AIIS to the intertrochanteric line

Upper and lower bands
Iliofemoral Ligament
Limits (4)

Extension
Lateral rotation
Adduction (upper)
Abduction (lower)

Pubofemoral Ligament
Attachments

Iliopubic eminence to the lower part of the intertrochanteric line

Pubofemoral Ligament
Limits (3)

Extension
Lateral rotation
Abduction

Ischiofemoral Ligament
Attachments

Posterior aspect of the acetabulum to the greater trochanter

Ischiofemoral Ligament
Limits

Extension
Medial rotation
Adduction

Blood supply of the hip joint

