Hip Muscles OIA for Hip Quiz

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Question

Answer

Gluteus Maximus Origin

Posterior gluteal line of ilium, dorsal sacrum, coccyx, sacrotuberous ligament

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Glut Max Insertion

Gluteal tuberosity of femur & IT tract

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Glut Max Action

Extend & ER thigh, extend pelvis when LE fixed

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Glut Med Origin

Ilium b/t ant & post gluteal lines

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Glut Med Insertion

Anterior border of greater trochanter

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Glut Med Action

Abduction & IR of thigh

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TFL Origin

Outer lip of iliac crest & ASIS

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TFL Insertion

IT Tract

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TFL Action

Flexes, Abducts, IR thigh

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Piriformis Origin

Pelvic surface of sacrum, sacrotuberous ligament from ilium below PIIS

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Piriformis Insertion

Upper border of greater trochanter

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Piriformis Action

ER of thigh; can abduct & IR flexed thigh

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Obturator Internus Origin

Inner surface of pelvis, from obturator membrane & edges of obturator foramen

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Obturator Internus Insertion

Medial greater trochanter

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Obturator Internus Action

ER thigh; Abduct flexed thigh

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Obturator Externus Origin

External surface pubis & ischium along margin of obturator foramen & from obturator membrane

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Obturator Externus Insertion

Trochanteric fossa

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Obturator Externus Action

Hip ER

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Quadratus Femoris Origin

Ischial tuberosity

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Quadratus Femoris Insertion

Intertrochanteric crest

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Quadratus Femoris action

Hip ER

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Semitendinosus Origin

Arises with LH biceps from ischial tuberosity

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Semitendinosus Insertion

Upper part of medial tibia (pes anserine)

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Semitendinosus Action

Knee flexion; Hip extension & IR of flexed knee

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Biceps femoris origin

LH: ischial tub lower sacrotuberous lig; SH: lateral linea aspera, upper lateral supracondylar line, lateral IM septum

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Biceps Femoris Insertion

Lateral head of fibula & lateral condyle of tibia

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Biceps Femoris Action

Knee flexion; LH also extends hip

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Semimembranosus Origin

Ischial tub & adjacent ischial ramus

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Semimembranosus Insertion

Posteromedial aspect of medial tibial condyle

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Semimembranosus Action

Flex & IR knee; Hip extension

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Pectineus Origin

Pectineal line of pubis

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Pectineus Insertion

Upper half of pectineal line of femur

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Pectineus Action

Flexes, Adducts, & IR hip

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Adductor Longus Origin

Crest & symphysis of pubis

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Adductor Longus Insertion

Middle 1/3 of linea aspera

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Adductor Longus Action

Adduction, flexion, ER of thigh

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Adductor Brevis Origin

Body & inferior ramus of pubis

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Adductor Brevis Insertion

Pectineal line of femur & upper part of linea aspera

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Adductor Brevis Action

Adduction, flexion, IR hip

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Adductor Magnus Origin

Ischial tuberosity & ischiopubic ramus

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Adductor Magnus Insertion

Gluteal tuberosity, medial linea aspera, medial supraocndylar line & adductor tubercle

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Adductor Magnus Action

Hip adduction; Upper fibers flex & IR hip; Lower fibers extend & ER hip

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Gracilis Origin

Body & inferior ramus of pubis

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Gracilis Insertion

Pes Anserine

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Gracilis Action

Hip adduction; Knee flexion; IR tibia on femur

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Iliopsoas Origin

Iliacus: upper iliac fossa, ala of sacrum, & adjacent ligs; Psoas Major: lateral lumbar vertebrae bodies, discs & TP's

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Iliopsoas Insertion

Lesser trochanter

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Iliopsoas Action

Flex & IR hip; Psoas extends & SB lumbar vertebral column

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Rectus Femoris Origin

AIIS & posterosuperior aspect of acetabular rim

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Rectus Femoris Insertion

Tibial tuberosity via patellar tendon/ligament

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Rectus Femoris Action

Knee extension; Hip flexion

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Vastus Lateralis Origin

Intertrochanteric line, greater trochanter, gluteal tuberosity, upper lateral linea aspera & lateral IM septum

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Vastus Lateralis Insertion

Tibial tuberosity via patellar tendon

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Vastus Lateralis Action

Knee Extension

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Vastus Medialis Origin

Intertrochanteric line, medial linea aspera, medial supracondylar line, medial IM septum

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Vastus Medialis Insertion

Tibial tuberosity via patellar tendon

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Vastus Medialis Action

Knee Extension

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Vastus Intermedius Origin

Upper 2/3 of femur & distal 1/2 of lateral IM septum; fuses with vastus lateralis

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Vastus Intermedius Insertion

Tibial tuberosity via patellar tendon

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Vastus Intermedius Action

Knee Extension

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Sartorius Origin

ASIS

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Sartorius Insertion

Pes Anserine

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Sartorius Action

Hip flexion, abduction, ER; Knee flexion & IR

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Resting Position

30 deg flexion & abduction; Slight ER

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Hip CPP

Ext, IR, Abd

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Hip Capsular Pattern

Flexion, Abd, IR > Ext, Adduction, ER

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