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Hip/Pelvic Girdle
Muscle of the Hip Joint & Pelvic Girdle (Origins, Insertions, Actions, & Nerves)
| Question | Answer |
|---|---|
| Origin of Iliopsoas (Iliacus & Psoas Major & Minor) | Inner surface of the ilium, lower borders of the transverse processes |
| Insertion of Iliopsoas (Iliacus & Psoas Major & Minor) | Lesser trochanter of the femur |
| Action of Iliopsoas (Iliacus & Psoas Major & Minor) | Flexion of the hip |
| Innervation of Iliopsoas (Iliacus & Psoas Major & Minor) | Lumbar nerve & femoral nerve |
| Origin of Rectus Femoris | Anterior inferior iliac spine of the ilium |
| Insertion of Rectus Femoris | Superior aspect of the the patella and patella tendon to the tibial tuberosity |
| Action of Rectus Remoris | Flexion of the hip |
| Innervation of Rectus Femoris | Femoral nerve |
| Origin of Sartorius | Anterior superior iliac spine |
| Insertion of Sartorius | Pes anserinus |
| Action of Sartorius | Flexion of the hip |
| Innervation of Sartorius | Femoral nerve |
| Origin of Pectineus | Space on front of pubis just above crest |
| Insertion of Pectineus | Rough line leading from the lesser trochanter down to the linea aspera |
| Action of Pectineus | Flexion of the hip |
| Innervation of Pectineus | Femoral nerve |
| Origin of Adductor Brevis | Front of the inferior pubic ramus |
| Insertion of Adductor Brevis | Lower 2/2 of pectineal line of femur and upper half medial lip of linea aspera |
| Action of Adductor Brevis | Adduction of the hip |
| Innervation of Adductor Brevis | Obturator nerve |
| Origin of Adductor Longus | Anterior pubis just below its crest |
| Insertion of Adductor Longus | Middle 1/3 of linea aspera |
| Action of Adductor Longus | Adduction of the hip |
| Innervation of Adductor Longus | Obturator nerve |
| Origin of Adductor Magnus | Pubic ramus, ischium, and ischial tuberosity |
| Insertion of Adductor Magnus | Linea aspera, inner condyloid ridge, and adductor tubercle |
| Action of Adductor Magnus | Adduction of the hip |
| Innervation of Adductor Magnus | Anterior: Obturator nerve Posterior: Sciatic nerve |
| Origin of Gracilis (groin) | Edge of descending ramus of pubis |
| Insertion of Gracilis (groin) | Anterior medial surface of tibia |
| Action of Gracilis (groin) | Adduction of the hip |
| Innervation of Gracilis (groin) | Obturator nerve |
| Origin of Semitendinosus (hamstring) | Ischial tuberosity |
| Insertion of Semitendinosus (hamstring) | Upper anterior surface of tibia |
| Action of Semitendinosus (hamstring) | Flexion of the knee |
| Innervation of Semitendinosus (hamstring) | Sciatic nerve - tibial division |
| Origin of Semimembranosus | Ischial tuberosity |
| Insertion of Semimembranosus | Posteromedial surface of the medial tibial condyle |
| Action of Semimembranosus | Flexion of the knee |
| Innervation of Semimembranosus | Sciatic nerve - tibial division |
| Origin of Biceps Femoris | Ischial tuberosity, lower half of linea aspera & lateral condyloid ridge |
| Insertion of Biceps Femoris | Head of fibula and lateral condyle of tibia |
| Action of Biceps Femoris | Flexion of the knee |
| Innervation of Biceps Femoris | Long head: Sciatic nerve - tibial division Short head: Sciatic nerve - peroneal division |
| Origin of Gluteus Maximus | Posterior 1/4 of ilium, posterior surface of sacrum and coccyx |
| Insertion of Gluteus Maximus | Gluteal tuberosity |
| Action of Gluteus Maximus | Extension of the hip |
| Innervation of Gluteus Maximus | Inferior gluteal nerve |
| Origin of Gluteus medius | Lateral surface of ilium |
| Insertion of Gluteus medius | Posterior & middle surfaces of greater trochanter |
| Action of Gluteus medius | Abduction of hip |
| Innervation of Gluteus medius | Superior gluteal nerve |
| Origin of Gluteus minimus | Lateral surface of the ilium |
| Insertion of Gluteus minimus | Anterior surface of greater trochanter |
| Action of Gluteus minimus | Abduction of the hip |
| Innervation of Gluteus minimus | Superior gluteal nerve |
| Origin of IT Band | Anterior iliac crest |
| Insertion of IT Band | Gerdy's tubercle |
| Action of IT Band | Abduction of the hip |
| Innervation of IT Band | Superior gluteal nerve |