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Muscles for test 4

muscle, origin, insertion, action, inervation

MuscleOriginInsertionActionInervation
Gluteus Maximus Posterior iliac crest behind post. gluteal line, posterior sacrum Gluteal tuberosity of femur, IT band Ext. femur, post pelvic tilt, lat. rot. femur, abduct femur Inf. Gluteal nerve
Gluteus Medius Iliac crest, between post. and ant. gluteal line Lateral greater trochanter Abduct femur, medial rot. Superior Gluteal nerve
Gluteus Minimus Outer ilium between anterior and inferior gluteal line Greater trochanter Abduct femur, medial rot. Superior Gluteal nerve
Tensor Fasciae Latae Ant. iliac crest, notch between asis and aiis IT band to Gerdy's tubercle Stabilize hip and knee joint Superior Gluteal nerve
Piriformis Ant. sacrum Tip of greater trochanter Lat. rot, abduct femur(esp. when flexed) 1st 2nd sacral spinal nerves
Gemellus Superior Ischial spine Greater trochanter Lat. rot., abduct flexed femur Nerve to obturator internus & gemellus sup.
Obturator Internus Ischiopubic rami, inner obturator membrane Greater trochanter Lat. rot., abduct flexed femur Nerve to obturator internus & gemelllus sup.
Gemellus Inferior Ischial tuberosity Greater trochanter Lat. rot., abduct femur Nerve to quadratus & gemellus inf.
Quadratus Femoris Ischial tuberosity Quadrate tubercle of femur Lat. rot., Nerve to quadratus & gemellus inf.
Obturator Externus Ischiopubic rami and outer obturator membrane Trochanteric fossa Lat. rot., abduct flexed femur Obturator nerve
Sartorius ASIS Prox. tibia medial Flex femur, flex tibia, lat. rot. remur Femoral nerve
Rectus Femoris AIIS, rim of acetabulum Ant. middle base of patella Flex femur, ext. tibia Femoral nerve
Vastus Lateralis Intertrochanteric line, greater trochanter, gluteal tub. and lat. linea aspera Lat. base of patella Flex femur, lat. rot. Femoral nerve
Vastus Medialis Intertrochanteric line, medial linea aspera, medual supracondylar line medial base of patella flex femur, med. rot. Femoral nerve
Vastus Intermedius Ant. Shaft of femur Base of patella Flex femur Femoral nerve
Pectineus Pectineal line of pubis Pectineal line of femur Adduct femur, aid flexion Femoral nerve
Adductor Longus Pubis Middle half of medial linea aspera Adduct femur Obturator nerve
Adductor Brevis Inf. pubic ramus Pectineal line, upper medial linea aspera Adduct femur Obturator nerve
Gracilis Pubic arch Ant. medial tibia(pes anserinus) Lat. rotate, flex, adduct Obturator nerve
Adductur Magnus Ischial tuberosity, Ischiopubic rami Gluteal tuberosity, adductor tubercle of femur Adduct, extend, medial rotate femur Obturator nerve &tibial comp. of sciatic
Long Head of Biceps Femoris Ischial tub. Head of fibula and lat. condyle of tibia Flex knee, lat. rotate, ext. hip Tibial comp. of sciatic
Short Head of Biceps Femoris Lat. linea aspera, lat. supracondylar ridge Lateral condyle of tibia Flex knee Common fibular comp. of sciatic
Semitendinosus Ischial tub. Prox. medial tibia (pes anserinus) Extend Femur, Flex tibia, medial rot. when knee flexed Tibial comp. of sciatic
Semimembranosus Ischial tub. Medial tibial condyle post. Extend hip, flex knee, medial rot. when flexed Tibial comp. of sciatic
Tibialis Anterior Lat. tibial condyle Plantar surface medial side, first cuneiform and base of first metatarsal Dorsi flex foot, invert foot Deep fibular nerve
Extensor Digitorum Longus Lateral tibial condyle, interosseous membrane, crest of fibula Dorsal base of middle and distal phalanges 2-5 Extend digits 2-5 all joints, dorsi flex foot Deep fibular nerve
Fibularis Tertius Distal 3rd of fibula and interosseous membrane Dorsal base of fifth metatarsal Dorsi flex, evert foot Deep fibular nerve
Extensor Hallucis Longus Middle ant. fibula and interosseous membrane Dosal base, distal phalanx of big toe Extend hallux and IP &MP joints, dorsi flex foot Deep fibular nerve
Fibularis Longus Upper fibula, lat. tibial condyle and interosseous membrane Plantar surface, first cuneiform and base of first metatarsal Plantar flexion, eversion Superficial fibular nerve
Fibularis Brevis Lower lat. fibula, deep to longus Tuberosity of 5th metatarsal Eversion, plantar flexion Superficial fibular nerve
Gastrocnemius(Medial head) Medial condyle of femur Achilles' tendon to calcaneus Plantar flexion, flex tibia Tibial nerve
Gastroc (Lateral head) Lateral condyle of femur Achilles' tendon to calcaneus Plantar flexion, flex tibia Tibial nerve
Soleus Prox. fibula, head of fibula, soleal line of tibia Merges with Gastroc to tendon Plantar flexion Tibial nerve
Plantaris Lower lat. supracondylar line Calcaneus Plantar flexion, flex tibia Tibial nerve
Popliteus Lat. epicondyle of femur, popliteal groove Soleal line Rotate tib relative to femur(medially), flex tibia Tibial nerve
Flexor Hallucis Longus "Harry" Fibula, interosseous membrane Plantar base, distal phalanx of big toe Flex big toe, Assist planta flexion Tibial nerve
Flexor Digitorum Longus "Dick" Post. tibia Plantar base distal phalanx 2-5 Flex digits 2-5 at DIP PIP and MP Tibial nerve
Tibialis Posterior "Tom" Post. tibia fibula and interosseous mem. Plantar surface tuberosity of navicular, cuneiforms, cuboid and base of metatarsals 2-4 weak plantar flexion, inversion Tibial nerve
Created by: TSUBulldog14