1. The Hip Muscles BIO 238 Instructor: Dr. Gourdine 1

2. LE 8-7 Ilium Right coxal bone, lateral view Anterior gluteal line Right coxal bone, medial view Ischium Pubis POSTERIOR ANTERIOR Pubis Ischium ANTERIORPOSTERIOR Ilium Posterior gluteal line Posterior superior iliac spine Posterior inferior iliac spine Greater sciatic notch Ischial spine Lesser sciatic notch Ischial tuberosity Ischial ramus Obturator foramen Inferior ramus of pubis Pubic tubercle Pectineal line Superior ramus of pubis Acetabulum Anterior inferior iliac spine Inferior gluteal line Anterior superior iliac spine Iliac crest Iliac fossa Auricular surface for articulation with sacrum Posterior superior iliac spine Posterior inferior iliac spine Greater sciatic notch Ischial spine Lesser sciatic notch Ischial tuberosity Ischial ramus

3. LE 8-8 SACRUM COCCYX ILIUM PUBIS ISCHIUM Coxal bone (Figure 8–7) Iliac fossa SACRUM L5L5 Sacral foramina Acetabulum Pubic tubercle Obturator foramen ISCHIUM COCCYX PUBIS ILIUM Pubic symphysis Posterior inferior iliac spine Posterior superior iliac spine Iliac crest Anterior view Posterior view L5L5 L4L4 Ischial tuberosity Ischial spine Greater sciatic notch

4. LE 8-11 Greater trochanter Shaft Neck Lateral epicondyle Patellar surface Lateral condyle Anterior surface Posterior surface Lateral condyle Lateral epicondyle Popliteal surface Neck Greater trochanter Femoral head Intertrochanteric line Lesser trochanter Adductor tubercle Medial epicondyle Medial condyle Intertrochanteric crest Gluteal tuberosity Pectineal line Linea aspera Intercondylar fossa

5. LE 8-13 Posterior viewAnterior view Lateral tibial condyle Head of fibula Medial tibial condyle Tibial tuberosity Soleal line Anterior margin Lateral tibial condyle Head of fibula Lateral malleolus (fibula) Medial malleolus (tibia) Lateral malleolus (fibula) FIBULA TIBIA

6. Hip Rotation (Lateral and Medial) 6

7. Hip Flexion and Extension 7

8. Hip Abduction and Adduction 8

9. Gluteal Muscles (pg 316) Gluteus Maximus ▫O- Coccyx, edge of sacrum, posterior iliac crest, sacrotuberous and sacroiliac ligaments ▫I- Iliotibial tract (upper fibers) and Gluteal tuberosity of femur (lower fibers) ▫A-Extension, lateral rotation, and abduction of hip 9 Figure 11–19a,b

10. Gluteal Muscles (pg 316) Gluteus Medius ▫O- Gluteal surface of ilium, between posterior and anterior gluteal lines, just below the iliac crest ▫I- Lateral aspect of greater trochanter ▫A-Abduction, medial rotation of femur at hip 10 Figure 11–19a,b

11. Gluteal Muscles (pg 316) Gluteus Minimus ▫O- Gluteal surface of ilium between anterior and inferior gluteal lines ▫I- Anterior surface of greater trochanter of femur ▫A- Abduction, medial rotation of femur at hip 11 Figure 11–19a,b

12. Thigh Adductors (pg 319, 320) Adductor Magnus ▫O- Inferior ramus of pubis, ischial tuberosity and ramus of ischium ▫I- Medial lip of linea aspera and adductor tubercle of femur ▫A- Adduction and medial rotation of hip, assists flexion of femur at hip 12

13. Thigh Adductors (pg 319, 320) Adductor longus ▫O-Pubic tubercle ▫I- Medial lip of linea aspera ▫A- Adduction and medial rotation of hip, assists flexion of femur at hip 13 Figure 11–20b

14. Thigh Adductors (pg 319, 320) Adductor brevis ▫O-Inferior ramus of pubis ▫I- Pectineal line and medial lip of linea aspera ▫A- Adduction and medial rotation of hip, assists flexion of femur at hip 14

15. Thigh Adductors (pg 319, 321) Pectinus ▫O-Superior Ramus of pubis ▫I- Pectineal line of femur ▫A- Adduction and medial rotation of hip, assists flexion of femur at hip 15

16. Thigh Adductors (pg 319, 321) Gracilis ▫O-Inferior ramus of pubis ▫I- Medial proximal shaft of tibia ▫A- Adduction and medial rotation of hip, flexion and medial rotation of knee 16

17. Lateral Rotators (pg 328) Piriformis ▫O- Anterolateral surface of sacrum ▫I- Superior aspect of greater trochanter ▫A- Lateral rotation and abduction of hip 17 Figure 11–19c,d

18. Lateral Rotators (pg 328) Quadratus femoris ▫O- Lateral border of ischial tuberosity ▫I- Intertrochanteric crest ▫A- Lateral rotation of the hip 18 Figure 11–19c,d

19. Lateral Rotators (pg 328) Obturator internus ▫O- Obturator membrane and inferior surface of obturator foramen ▫I- Medial surface of greater trochanter of femur ▫A- Lateral rotation of the hip 19 Figure 11–19c,d

20. Lateral Rotators (pg 329) Obturator externus ▫O- Rami of pubis and ischium, obturator membrane ▫I- Trochanteric fossa of femur ▫A- Lateral rotation of hip 20 Figure 11–19c,d

21. Iliopsoas (pg 332) Psoas Major ▫O- Lumbar vertebrae T12- L5 ▫I- Lesser trochanter of femur ▫A- Flexion of hip 21 Figure 11–19c,d

22. Iliopsoas (pg 332) Iliacus ▫O- Iliac Fossa ▫I- Lesser trochanter of femur ▫A- Flexion of hip joint 22 Figure 11–19c,d