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muscles 11.18
name | origin | insertion | action |
---|---|---|---|
adductor magnus | inferior ramus of pubis and ischium to ischial tuberosity | linea aspera of femur | adducts thigh at hip joint and laterally rotates thigh, anterior part flexes thigh at hip joint and posterior part extends thigh at hip joint |
adductor longus | pubic crest and pubic symphysis | linea aspera of femur | adducts and flexes thigh at hip joint and laterally rotates thigh |
adductor brevis | inferior ramus of pubis | superior half of linea aspera of femur | adducts and flexes thigh at hip joint and medially rotates thigh |
pectineus | superior ramus of pubis | pectineal line of femur, between lesser trochanter and linea aspera | flexes and adducts thigh at hip joint |
gracilis | body and inferior ramus of pubis | medial surface of body of tibia | adducts thigh at hip joint, medially rotates thigh, and flexes leg at knee joint |
quadriceps femoris | has 4 (muscles) | rectus femoris, vastus lateralis | vastus medialis, vastus intermedius |
rectus femoris | anterior inferior iliac spine | patella via quadriceps tendon and then tibial tuberosity via patellar ligament | all four heads extend leg at knee joint, rectus femoris muscle acting alone also flexes thigh at hip joint |
vastus lateralis | greater trochanter and linea aspera of femur | patella via quadriceps tendon and then tibial tuberosity via patellar ligament | all four heads extend leg at knee joint, rectus femoris muscle acting alone also flexes thigh at hip joint |
vastus medialis | linea aspera of femur | patella via quadriceps tendon and then tibial tuberosity via patellar ligament | all four heads extend leg at knee joint, rectus femoris muscle acting alone also flexes thigh at hip joint |
vastus intermedius | anterior and lateral surfaces of body of femur | patella via quadriceps tendon and then tibial tuberosity via patellar ligament | all four heads extend leg at knee joint, rectus femoris muscle acting alone also flexes thigh at hip joint |
satorius | anterior superior iliac spine | medial surface of body of tibia | flexes at knee joint;flexes axducts and laterally rotates thigh at hip joint |
hamstrings | has 3> 1-biceps femoris | semitendinosus | semimembreanosus |
biceps femoris | long head arises from ischial tuberosity; short head arises from linea aspera of femur | head of fibula and lateral condyle of tibia | flexes leg at knee joint and extends thigh at hip joint |
semitendinosus | ischial tuberosity | proximal part of medial durface of shaft of tibia | flexes leg at knee joint and extends thigh at hip joint |
semimembranosus | ischial tuberosity | medial condyle of tibia | flexes leg at knee joint and extends thigh at hip joint |