Muscle Origins and Insertions Flashcards
Hip Flexors
Rectus Femoris (O: AIIS and acetabulum, I: Patella and Tibial tuberosity)
Iliacus (O: Iliac fossa, I: Lesser trochanter of femur)
Psoas Major (O: L1-L5 VB, TP, and discs, I: Lesser trochanter of femur)
Hip Extensors
Gluteus Maximus (O: Lateral ilium, dorsal sacrum, I: Iliotibial tract, gluteal tuberosity of femur)
Biceps Femoris (I: Fibular Head)
Semitendinosus (I: Proximal, medial tibia)
Semimembranosus (I: Medial tibial condyle)
Hip ADductors
Pectineus (O: Superior Ramus of Pubis, I: Distal to lesser trochanter of femur)
Gracilis (O: Inferior Ramus of Pubis, I: Proximal and Medial Surface of Tibia)
Adductor Longus: (I: Middle 1/3 of Femoral Linea Aspera)
Adductor Magnus: (I: Linea Aspera and Adductor tubercle of the Femur)
Adductor Brevis (I: Proximal part of femoral Linea Aspera)
Hip ABductors and Internal Rotators
Gluteus Medius and Minimus (O: Lateral surface of Ilium, I: Greater trochanter of Femur)
Tensor Fascia Lata (O: Iliac crest just posterior to the ASIS, I: Iliotibial tract and proximal, lateral tibia)
External Rotators
***Piriformis (O: Anterior portion of Sacrum, I: Greater Trochanter of Femur)
Gluteus Maximus
Obturator Internus (O: Ischial tuberosity, I: Greater trochanter)
Gemellus Superior
Gemellus Inferior (O: Upper aspect of IT, I: Medial side of Greater Trochanter)
Quadratus Femoris (O: Lateral Ischium, I: Intertrochanteric Crest)
Obturator Externus (O: Obturator Foramen, I: Greater Trochanter)
Knee Flexors
Biceps Femoris (O: Ischial tuberosity and lateral lip of linea aspera on the femur, I: Fibular head)
Semitendinosus (I: Proximal, medial tibia)
Semimembranosus (I: MEdial tibail condyle)
Knee Extensors
Vastus Lateralis (O: greater trochanter)
Vastus Medialis (VMO) (O: intertrochanteric line)
Vastus Intermedius (O: Anterior/lateral surface of femoral shaft)
Rectus Femoris (AIIS and Acetabulum)
***All Quadriceps insert on the PATELLA and TIBIAL TUBEROSITY via the quadriceps tendon and patellar ligament
