Gluteal Region And Hip Flashcards
Gluteus Maximus origin
- Sacrotuberous ligament
- dorsal surface of sacrum and coccyx
- ilium posterior to posterior gluteal line
Gluteus Maximus insertion
Iliotibial band and gluteal tuberosity
Gluteus Maximus innervation and action
- inferior gluteal nerve
- extends hip joint between flexed and standing position
- assists with lateral rotation
Gluteus medius insertion
Lateral surface of greater trochanter of femur
Gluteus medius origin
External surface of the ilium between anterior and posterior gluteal lines
Gluteus medius innervation and action
-superior gluteal nerve
- abduct hip joint
- keep pelvis level when opposite limb is elevated
Gluteus minimus insertion
Anterior surface of greater trochanter of the femur
Gluteus minimus origin
External surface of the ilium between the anterior and inferior gluteal lines
Gluteus minimus innervation and action
-superior gluteal nerve
- abduct hip joint
- keep pelvis level when opposite limb is elevated
Tensor fasciae latae origin
Anterior superior iliac spine (ASIS)
Tensor fasciae latae insertion
Iliotibial tract
Tensor fasciae latae innervation and action
-superior gluteal nerve
- abduct hip joint
- keep pelvis level when opposite limb is elevated
Piriformis origin
Superior greater sciatic notch
Sacrotuberous ligament
Piriformis insertion
Superior border of greater trochanter of femur
Pisiformis innervation and action
- anterior rami of s1 and s2
- laterally rotate extended hip joint
- abduct flexed hip joint
- stabilizes hip joint
Obturator internus origin
- Pelvic surface of ilium and ischium
- Obturator membrane
Obturator internus insertion
Medial surface if the greater trochanter of femur
Obturator internus innervation and action
-nerve to obturator internus
- laterally rotate extended hip joint
- abduct flexed hip joint
- stabilizes hip joint
Superior and inferior gemelli innervation and action
Superior: nerve to obturator internus
Inferior: nerve to Quadratus femoris
- laterally rotate extended hip joint
- abduct flexed hip joint
- stabilizes hip joint
Superior and inferior gemelli insertion
Both: medial surface of the greater trochanter of the femur
Superior and inferior gemelli origin
Superior: Ischial spine
Inferior : Ischial tuberosity
Quadratus femoris origin
Lateral border of Ischial tuberosity
Quadratus femoris insertion
Quadrate tubercle on intertrochanteric crest of femur (posterior side)
Quadratus femoris innervation and action
- nerve to Quadratus femoris
- laterally rotates hip
- pulls femoral head into acetabulum to help stabilize hip joint
Psoas major insertion
Lesser trochanter of the femur
Psoas major origin
Transverse processes of lumbar vertebrae
Psoas major innervation and action
anterior rami of lumbar nerves (L1. L2 L3)
Flexes thigh, flexes vertebral column
Iliacus insertion
Lesser trochanter of femur
Iliacus origin
iliac crest
iliac fossa
Anterior sacroiliac ligament
Iliacus innervation and action
Femoral nerve
Flexes thigh and stabilizes hip
intertrochanteric crest and line
Crest: between the two trochanter on the posterior side
Line: between the two trochanter on the anterior side
what are the part of the acetabulum
-lunate suface: articular portion
acetabular notch
acetabular fossa: non-articular portion
angle of inclination
- average is 126 degrees
- allows great mobility because the neck of femur is perpendicular to the acetabulum
what happens to the angle of inclination with age?
decreases
Torsion Angle in males
7 degrees
torsion angle in females
12 degrees
what is the torsion angle
the angle of inclination with the line between the two condyles
what bounds the gluteal region
iliac crest
greater trochanter
anterior superior iliac spine
gluteal fold (under butt)
parts of the bony pelvis
hip bones
sacrum
coccyx
(all bounded by gluteal ligaments)
what converts the sciatic notches into foramina?
Sacrotuberous and Sacrospinous ligament
Greater sciatic foramen contains
contains structures entering and leaving the pelvis
lesser sciatic foramen contains
contains structures entering and leaving the perineum
inguinal ligament
runs from anterior superior iliac spine to the public tubercules
Superior, Middle and inferior Clunial Nerve
-supply the skin of the gluteal region
Sciatic Nerve
- largest nerve
- made up of two nerve that are bound together by fasica (Tibal Nerve and Common Fibular Nerve)
Deep artery of the thigh
- Profunda Femoria Artery
- branch of the femoral
- cheif artery of the thigh
Hip joint type
ball and socket synovial
Hip joint articulations
-acetabulum with femoral head
acetabular labrum
increasing the depth of the acetabulum
transverse acetabular ligament
bridges the acetabular notch
iliofemoral ligament
- anteriorly to the hip joint
- prevents hyperextension
ischiofemoral ligament
- posteriorly to the hip joint
- weak ligament
pubofemoral ligament
-runs from the obturator crest and then blends with the joint capsule
-tight during extension and abduction of hip
resists excessive abduction of hip joint
what helps to stabilize the hip joint
Muscles (Medial and Lateral Rotators) and Ligaments
Ligament of the head of femur
- fovea
- usually contains acetabular artery, a branch of obturator artery
- weak at strengthening joint
branches of the sacral plexus
- superior gluteal
- inferior gluteal
- sciatic
- posterior cutaneous nerve of thigh
- nerve to quadratus femoral
-nerve to obturator internus
- pudendal
blood supply to the hip joint
- medial and lateral cimcumflex femoral artery (branch of deep artery of the thigh)
- at the head of femor is acetabular artery (branch of obturator artery)
nerve supply to the hip
- anterior: femoral nerve
- inferior: obturator nerve
- superior: superior gluteal nerve
- posterior: nerve to quadratus femorus
Gluteal Bursae
- separate the gluteus maximus from adjacent structures
- three types: trochanteric, ischial, gluteofemoral bursae
Fascia lata
- covers the muscle tensor fasciae latae on both sides
- deep fascia of the thigh
What two muscles make up the iliotibial tract (band)
- Gluteus Maximus
- Tensor Fasciae latae
(this is due to their attachment to the tract)
branches of internal iliac artery
- iliolumbar
- lateral sacral
- superior gluteal
- inferior gluteal
- internal puodendal
- visceral branches
- umbilicus
- obturator
what does the iliotibial tract (band) run
-iliac tubercule to the anterolateral tibial tubercule on the lateral condyle of the tibia
What is iliopsoas muscle?
- merging of psoas major and iliacus
- chief flexor of the hip
What is the action of iliopsoas
-acting together: flexes and stablizes hip
Trochanteric bursa
Separates the deep aspect of the gluteus Maximus from the greater trochanter of the femur
Ischial bursa
Separates inferior border of gluteus Maximus from Ischial tuberosity
Gluteofemoral bursa
Separates the iliotibial tract from the superior part of insertion of vastus lateralis