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Hip Muscles
Hip Muscles OIA for Hip Quiz
Question | Answer |
---|---|
Gluteus Maximus Origin | Posterior gluteal line of ilium, dorsal sacrum, coccyx, sacrotuberous ligament |
Glut Max Insertion | Gluteal tuberosity of femur & IT tract |
Glut Max Action | Extend & ER thigh, extend pelvis when LE fixed |
Glut Med Origin | Ilium b/t ant & post gluteal lines |
Glut Med Insertion | Anterior border of greater trochanter |
Glut Med Action | Abduction & IR of thigh |
TFL Origin | Outer lip of iliac crest & ASIS |
TFL Insertion | IT Tract |
TFL Action | Flexes, Abducts, IR thigh |
Piriformis Origin | Pelvic surface of sacrum, sacrotuberous ligament from ilium below PIIS |
Piriformis Insertion | Upper border of greater trochanter |
Piriformis Action | ER of thigh; can abduct & IR flexed thigh |
Obturator Internus Origin | Inner surface of pelvis, from obturator membrane & edges of obturator foramen |
Obturator Internus Insertion | Medial greater trochanter |
Obturator Internus Action | ER thigh; Abduct flexed thigh |
Obturator Externus Origin | External surface pubis & ischium along margin of obturator foramen & from obturator membrane |
Obturator Externus Insertion | Trochanteric fossa |
Obturator Externus Action | Hip ER |
Quadratus Femoris Origin | Ischial tuberosity |
Quadratus Femoris Insertion | Intertrochanteric crest |
Quadratus Femoris action | Hip ER |
Semitendinosus Origin | Arises with LH biceps from ischial tuberosity |
Semitendinosus Insertion | Upper part of medial tibia (pes anserine) |
Semitendinosus Action | Knee flexion; Hip extension & IR of flexed knee |
Biceps femoris origin | LH: ischial tub lower sacrotuberous lig; SH: lateral linea aspera, upper lateral supracondylar line, lateral IM septum |
Biceps Femoris Insertion | Lateral head of fibula & lateral condyle of tibia |
Biceps Femoris Action | Knee flexion; LH also extends hip |
Semimembranosus Origin | Ischial tub & adjacent ischial ramus |
Semimembranosus Insertion | Posteromedial aspect of medial tibial condyle |
Semimembranosus Action | Flex & IR knee; Hip extension |
Pectineus Origin | Pectineal line of pubis |
Pectineus Insertion | Upper half of pectineal line of femur |
Pectineus Action | Flexes, Adducts, & IR hip |
Adductor Longus Origin | Crest & symphysis of pubis |
Adductor Longus Insertion | Middle 1/3 of linea aspera |
Adductor Longus Action | Adduction, flexion, ER of thigh |
Adductor Brevis Origin | Body & inferior ramus of pubis |
Adductor Brevis Insertion | Pectineal line of femur & upper part of linea aspera |
Adductor Brevis Action | Adduction, flexion, IR hip |
Adductor Magnus Origin | Ischial tuberosity & ischiopubic ramus |
Adductor Magnus Insertion | Gluteal tuberosity, medial linea aspera, medial supraocndylar line & adductor tubercle |
Adductor Magnus Action | Hip adduction; Upper fibers flex & IR hip; Lower fibers extend & ER hip |
Gracilis Origin | Body & inferior ramus of pubis |
Gracilis Insertion | Pes Anserine |
Gracilis Action | Hip adduction; Knee flexion; IR tibia on femur |
Iliopsoas Origin | Iliacus: upper iliac fossa, ala of sacrum, & adjacent ligs; Psoas Major: lateral lumbar vertebrae bodies, discs & TP's |
Iliopsoas Insertion | Lesser trochanter |
Iliopsoas Action | Flex & IR hip; Psoas extends & SB lumbar vertebral column |
Rectus Femoris Origin | AIIS & posterosuperior aspect of acetabular rim |
Rectus Femoris Insertion | Tibial tuberosity via patellar tendon/ligament |
Rectus Femoris Action | Knee extension; Hip flexion |
Vastus Lateralis Origin | Intertrochanteric line, greater trochanter, gluteal tuberosity, upper lateral linea aspera & lateral IM septum |
Vastus Lateralis Insertion | Tibial tuberosity via patellar tendon |
Vastus Lateralis Action | Knee Extension |
Vastus Medialis Origin | Intertrochanteric line, medial linea aspera, medial supracondylar line, medial IM septum |
Vastus Medialis Insertion | Tibial tuberosity via patellar tendon |
Vastus Medialis Action | Knee Extension |
Vastus Intermedius Origin | Upper 2/3 of femur & distal 1/2 of lateral IM septum; fuses with vastus lateralis |
Vastus Intermedius Insertion | Tibial tuberosity via patellar tendon |
Vastus Intermedius Action | Knee Extension |
Sartorius Origin | ASIS |
Sartorius Insertion | Pes Anserine |
Sartorius Action | Hip flexion, abduction, ER; Knee flexion & IR |
Resting Position | 30 deg flexion & abduction; Slight ER |
Hip CPP | Ext, IR, Abd |
Hip Capsular Pattern | Flexion, Abd, IR > Ext, Adduction, ER |