muscles of the hip jointcfje/2440/hip-muscles.pdfmuscles of the hip joint • o: lower posterior...
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![Page 1: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/1.jpg)
Muscles of the Hip Joint
![Page 2: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/2.jpg)
• O: lower posterior iliac crest and posterior surface of the sacrum
• I: gluteal tuberosity (upper, posterior aspect of the femur) & I.T. band
• Actions:
• Extension of the hip
• External rotation of the hip
• Upper fibers - assist in abduction
• Lower fibers - assist in adduction
Gluteus Maximus
![Page 3: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/3.jpg)
Extension
![Page 4: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/4.jpg)
• O: outer surface of the ilium just below the crest
• I: greater trochanter
• Actions:
• Abduction of the hip
• Anterior fibers: Internal rotation and flexion
• Posterior fibers: External rotation and extension
Gluteus Medius
Post
erio
r
Ant
erio
r
![Page 5: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/5.jpg)
• O: outer surface of the ilium beneath the gluteus medius
• I: greater trochanter of the femur
• Actions
• Abduction of the hip
• Internal rotation
• Flexion of the hip
Gluteus Minimus
![Page 6: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/6.jpg)
![Page 7: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/7.jpg)
![Page 8: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/8.jpg)
![Page 9: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/9.jpg)
• Lateral side
• Origin:
• 1.) Long head - ischial tuberosity;
• 2.) Short head - lower half of the linea aspera
• Insertion: Head of the fibula
• Action:
• Extension of hip
• External rotation of the hip
Biceps Femoris
![Page 10: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/10.jpg)
• Medial side; superficial
• Origin: Ischial tuberosity
• Insertion: Medial surface of proximal end of the tibia
• Action:
• Extension of the hip
• Internal rotation of the hip
Semitendinosus
![Page 11: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/11.jpg)
• Medial side, deeper than semitendonosus
• Origin: Ischial tuberosity
• Insertion: Medial surface of the tibia
• Action: • Extension of the hip
• Internal rotation of the hip
Semimembranosus
![Page 12: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/12.jpg)
![Page 13: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/13.jpg)
![Page 14: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/14.jpg)
• O: iliac crest
• I: iliotibial (I.T.) band
• Actions:
• Flexion of the hip
• Internal rotation
• Abduction of the hip
Tensor Fasciae Latae
![Page 15: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/15.jpg)
Tensor Fascia Latae (Anterior View)
![Page 16: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/16.jpg)
• Origins:
• iliac fossa
• vertebral bodies of the last thorasic and lumbar vertebrae
• I: lesser trochanter of the femur
• Actions:
• Flexion of the hip
• External rotation
Iliopsoas
![Page 17: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/17.jpg)
• O: pubic crest or ramus
• I: below the linea aspera
• Actions
• Flexion
• Adduction
• External rotation
Pectineous
![Page 18: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/18.jpg)
Tensor Fasciae LataePectineus
![Page 19: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/19.jpg)
• Origin: Inferior ramus of pubis
• Insertion: Pectineal line (linea aspera)
• Actions:
• Adduction
• External rotation
• Flexion (weak)
Adductor Brevis
![Page 20: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/20.jpg)
![Page 21: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/21.jpg)
• Below the adductor brevis
• O: front of the pubis just below its crest
• I: middle third of the linea aspera
• Actions:
• Adduction
• Flexion (weak)
Adductor Longus
![Page 22: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/22.jpg)
• Located posterior to the longus
• O: edge of the pubic crest and ischial tuberosity
• I: linea aspera
• Actions:
• Adduction
• External rotation
• Extension
Adductor Magnus
![Page 23: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/23.jpg)
• O: pubic crest
• I: medial condyle of tibia
• Actions:
• Adduction at the hip
• Internal rotation
• Flexion (weak)
Gracilis
![Page 24: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/24.jpg)
• Origin: Anterior-superior spine of the ilium
• Insertion: Anterior medial condyle of the tibia (behind the medial condyle)
• Action:
• Flexion of hip
• External rotation of the hip
• Abduction
Sartorius
![Page 25: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/25.jpg)
![Page 26: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/26.jpg)
• Origin: anterior-inferior iliac spine of the ilium
• Insertion: top of the patella and patellar ligament to the tibial tuberosity
• Action: Flexion of the hip
Rectus Femoris
![Page 27: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/27.jpg)
Posterior Anterior
Hip Rotator Muscles
![Page 28: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/28.jpg)
• ANTERIOR
• Obturator Externus
Anterior
Hip Rotator Muscles
![Page 29: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/29.jpg)
• POSTERIOR
• Piriformis
• Gemellus superior
• Obturator internus
• Gemellus inferior
• Quadratus femoris
Posterior
Hip Rotator Muscles
![Page 30: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/30.jpg)
Posterior Posterior
![Page 31: Muscles of the Hip Jointcfje/2440/Hip-muscles.pdfMuscles of the Hip Joint • O: lower posterior iliac crest and posterior surface of the sacrum • I: gluteal tuberosity (upper, posterior](https://reader033.vdocuments.net/reader033/viewer/2022043001/5f798dc8fda41c5f7d5751b3/html5/thumbnails/31.jpg)
• Common action is External Rotation
• Powerful external rotation of the hip is required to throw a baseball, swing a bat or golf club.
• The sciatic nerve passes just inferior to the piriformis therefore a tight piriformis muscle my contribute to compression on the sciatic nerve.
Six Hip Rotator Muscles