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LE OIAN
Hip, knee, & ankle muscles
Muscle | Origin - O | Insertion - I | Action - A | Nerve - N | How many jts. | Where Located |
---|---|---|---|---|---|---|
Iliopsoas | Iliac fossa, & anterior & lateral surfaces of T12-L5 | Lesser trochanter of femur | Hip flexion | Femoral Nerve (L2,L3)Psoas Major (L2,L3) | One Joint, Hip | Hip |
Pectineus | Superior ramus of pubis | Pectineal line of the femur | Hip flexion & adduction | Femoral Nerve (L2,L3,L4) | One Joint, Hip | Hip |
Rectus Femoris | AIIS | Tibial tuberosity | Hip flexion & knee extension | Femoral Nerve (L2,L3,L4) | Two Joints, Hip & Knee | Anterior, Quadricep |
Sartorius | Anterior superior iliac spine (ASIS) | Proximal medial aspect of the tibia | Hip flexion, hip abduction, lateral rotation & knee flexion (tailors muscle) | Femoral Nerve (L2,L3) | Two Joints, Hip & Knee | Hip |
Tensor Fascia Latae | Anterior superior iliac spine (ASIS) | Lateral condyle of tibia | Combined hip flexion & abduction | Superior Gluteal Nerve (L4,L5) | Two Joints, Hip & Knee | Hip |
Biceps Femoris (long head) | Ishial tuberosity | Fibular head | Extend hip & flex knee | Sciatic Nerve (S1,S2,S3) | Two Joints, Hip & Knee | Posterior, Hip, Hamstring |
Semimembranosus | Ishial tuberosity | Posterior surface of the medial condyle of tibia | Extend hip & flex knee | Sciatic Nerve (L5,S1,S2) | Two Joints, Hip & Knee | Posterior, Hip, Hamstring |
Semitendinosus | Ishial tuberosity | Anteromedial surface of proximal tibia | Extend hip & flex knee | Sciatic Nerve (L5,S1,S2) | Two Joints, Hip & Knee | Posterior, Hip, Hamstring |
Gluteus Maximus | Posterior sacrum & ilium | Posterior femur distal to greater trochanter & to iliotibial band | Hip extention, hyperextension & lateral rotation | Inferior Gluteal Nerve | One Joint, Hip | Hip |
Piriformis | Posterior sacrum, ischium, & pubis | Greater trochanter area | Hip lateral rotation | Anterior rami (S1,S2) | One Joint, Hip | Hip |
Quadratus Femoris | Posterior sacrum, ischium, & pubis | Greater trochanter area | Hip lateral rotation | Nerve to the Quadratus Femoris (L5,S1) | One Joint, Hip | Hip |
Obturator Internus | Posterior sacrum, ischium, & pubis | Greater trochanter area | Hip lateral rotation | Nerve to the Oberator Internus (L5,S1) | One Joint, Hip | Hip |
Obturator Externus | Posterior sacrum, ischium, & pubis | Greater trochanter area | Hip lateral rotation | Obturator Nerve (L3,L4) | One Joint, Hip | Hip |
Gemellus Superios | Posterior sacrum, ischium, & pubis | Greater trochanter area | Hip lateral rotation | Nerve to the Obturator Internus (L5,S1) | One Joint, Hip | Hip |
Gemellus Inferior | Posterior sacrum, ischium, & pubis | Greater trochanter area | Hip lateral rotation | Nerve to the Quadratus Femoris (L5,S1) | One Joint, Hip | Hip |
Adductor longus | Pubis | Middle third of the linea aspera | Hip Adduction | Obturator Nerve (L3,L4) | One Joint, Hip | Hip |
Adductor Brevis | Pubis | Pectineal line & Proximal linea aspera | Hip Adduction | Obturator Nerve (L3,L4) | One Joint, Hip | Hip |
Adductor Mangus | Ischium & Pubis | Entire linea aspera & adductor tubercle | Hip Adduction | Obturator & Sciatic Nerves (L3,L4) | One Joint, Hip | Hip |
Gracilis | Pubis | Anterior medial surface of the proximal end of the tibia | Hip Adduction | Obturator Nerve (L2,L3) | Two Joints, Hip & Knee | Hip |
Gluteus Medius | Outer surface of the ilium | Lateral surface of the greater trochanter | Hip abduction | Superior Gluteal Nerve (L4,L5,S1) | One Joint, Hip | Hip |
Gluteus Minimus | Lateral Ilium | Anterior surface of the greater trochanter | Hip abduction & medial rotation | Superior Gluteal Nerve (L4,L5,S1) | One Joint, Hip | Hip |
Biceps Femoris (short head) | Lateral lip of linea aspera of the femur | Fibular head | Flex knee | Common Peroneal Nerve (L5,S1,S2) | Two Joints, Hip & Knee | Posterior, Hip, Hamstring |
Vastus Lateralis | Linea aspera | Tibial tuberosity via patellar tendon | Knee extension | Femoral Nerve (L2,L3,L4) | Two Joints, Hip & Knee | Anterior, Knee, Quadricep |
Vastus Medialis | Linea aspera | Tibial tuberosity via patellar tendon | Knee extension | Femoral Nerve (L2,L3,L4) | Two Joints, Hip & Knee | Anterior, Knee, Quadricep |
Vastus Intermedialis | Anterior femur | Tibial tuberosity via patellar tendon | Knee extension | Femoral Nerve (L2,L3,L4) | Two Joints, Hip & Knee | Anterior, Knee, Quadricep |
Popliteus | Lateral condyle of femur | Posterior medial condyle of tibia | Initiates knee flexion | Tibial Nerve (L4,L5,S1) | One Joint, Knee | Posterior Knee |
Gastrocnemius (Medial head) | Medial condyle of the femur | Posterior calcaneus | Knee flexion, ankle plantar flexion | Tibial Nerve, (S1,S2) | Two Joint, Knee & Ankle | Superficial Posterior Knee & Ankle |
Gastrocnemius (Lateral head) | Lateral condyle of the femur | Posterior calcaneus | Knee flexion, ankle plantar flexion | Tibial Nerve, (S1,S2) | Two Joint, Knee & Ankle | Superficial Posterior Knee & Ankle |
Soleus | Posterior tibia & fibula | Posterior calcaneus | Ankle plantar flexion | Tibial Nerve (S1,S2) | One Joint, Ankle | Superficial Posterior Ankle |
Plantaris | Posterior lateral condyle of femur | Posterior calcaneus | Very weak assist in knee flexion & ankle plantar flexion | Tibial (L4,L5,S1) | Two Joint, Knee & Ankle | Superficial Posterior Knee & Ankle |
Tibialis Posterior | Interosseous membrane, adjacent tibia & fibula | Navicular & most tarsals & metatarsals | Anle inversion; assists in plantar flexion | Tibial Nerve (L5,S1) | One Joint, Ankle | Deep Posterior Ankle |
Flexor Hallucis Longus | Posterior fibula & interosseous membrane | Distal phalanx of the great toe | Flexes great toe; assists in iversion & plantar flexion of the ankle | Tibial Nerve (L5,S1,S2) | Two Joint, Ankle &Great Toe | Deep Posterior Ankle |
Flexor Digitorum Longus | Posterior tibia | Distal phalanx of four lesser toes | Flexes the four lesser toes; assists in ankle inversion & plantar flexion | Tibial Nerve (L5,S1) | Two Joint, Ankle & Toes | Deep Posterior Ankle |
Tibialis Anterior | Lateral tibia & interosseus membrane | 1st Cuneiform & metatarsal | Ankle inversion & dorsiflexion | Deep Peroneal Nerve (L4,L5,S1) | One Joint, Ankle | Anterior, Ankle |
Extensor Hallucis Longus | Fibula & interosseous membrane | Distal phalanx of great toe | Extends 1st toe; assists in ankle inversion & dorsiflexion | Deep Peroneal Nerve (L4,L5,S1) | Two Joint, Ankle & 1st Toe | Anterior, Ankle |
Extensor Digitorum Longus | Fibula, interosseous membrane, tibia | Distal phalanx of four lesser toes | Extends 4 lesser toes, assists in ankle dorsiflexion | Deep Peroneal Nerve (L4,L5,S1) | Two Joint, Ankle & 4 lesser toes | Anterior, Ankle & 4 lesser toes |
Peroneus Longus | Lateral proximal fibula & interosseous membrane | Plantar surface of the 1st Cuneiform & metatarsal | Ankle eversion; assists in ankle plantar flexion | Superficial Peroneal Nerve (L4,L5,S1) | Many Joints, Ankle & Foot | Lateral, Ankle & posterior toes |
Peroneus brevis | Lateral distal fibula | Base of 5th metatarsal | Ankle eversion; assists in plantar flexion | Superficial Peroneal Nerve (L4,L5,S1) | Many Joints, Ankle & Foot | Lateral, Ankle & 5th metatarsal |
Peroneus Tertius | Distal Medial fibula | Base of 5th metatarsal | Assists in ankle eversion & dorsiflexion | Deep Peroneal Nerve (L4,L5,S1) | Two Joints, Ankle & 5th metatarsal | Lateral Ankle & 5th metatarsal |