1. Hip and Pelvis
Ms. Bowman

2. Articulations
Pelvis
Two innominates articulate with the sacrum to form the sacroiliac joint
Innominates formed by the fusion of the ilium, ischium, and pubis
8 bones in pelvis
Sacrum
Coccyx
Ilium-2
Ischium-2
Pubic-2

4. Bony Landmarks

5. Functions Support the spine and trunk
Transfer weight from trunk to lower limbs
Attachment site for muscles of the trunk and thigh
Protection of the pelvic organs

6. Articulations
Hip
Formed by the articulation of the femur and the acetabulum of the pelvis
Forms ball and socket joint

7. Femur Longest and strongest bone in the body
Articulates with the tibia to form the knee and the pelvis to form the hip

8. Femur Significantly less moveable than shoulder, but much more stable
Neck of the femur has little blood supply

9. MUSCLES

10. Gluteus Maximus
Origin- outer surface of ilium and posterior surface of sacrum and coccyx
Insertion- proximal posterior femur, iliotibial band
Action- extends and externally rotates the hip

11. Tensor Fasciae Latae Origin- outer edge of iliac crest
Insertion- iliotibial tract
Action- flexes, abducts, and internally rotates hip

12. Gluteus Medius Origin- proximal outer surface of ilium
Insertion- lateral surface of greater trochanter of femur
Action- abducts hip, internal and external rotation of the hip

13. Gluteus Minimus
Origin- middle outer surface of ilium, below gluteus medius
Insertion- anterior border of greater trochanter of femur
Action- abducts and laterally rotates hip

14. Piriformis Origin- internal surface of sacrum
Insertion- greater trochanter of femur
Action- externally rotates hip, abducts thigh

15. Hamstrings Origin- ischial tuberosity, proximal posterior femur
Insertion- semimembranosis:posterior medial condyle of femur; semitendinosus: proximal medial surface of shaft of tibia; biceps femoris: head of fibula, lateral condyle of tiboa
Action- knee flexion, hip extension

16. Adductors Origin- anterior part of pubic bone, ischial tuberosity
Insertion- medial side of femur
Action- adduct and laterally rotate hip

17. Gracilis Origin- distal margin of pubic bone
Insertion- proximal medial surface of shaft of tibia
Action- adducts hip, flexes knee

18. Sartorius Origin- anterior superior iliac spine
Insertion- proximal medial tibia
Action- flexes hip, externally rotates hip, abducts hip, flexes knee,

19. Quadriceps
Origin-rectus femoris: front part of ilium vastus group: proximal shaft of femur
Insertion- patella via patellar tendon
Action- extends knee, flexes hip