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Thigh muscles OIAN
Muscles of the thigh origin, insertion, action, nerve
Question | Answer |
---|---|
Tensor Fasciae Latae origin | iliac crest (posterior to anterior superior iliac spine) |
Tensor Fasciae Latae insertion | iliotibial tract (which continues to attach to the lateral condyle of the tibia) |
Tensor Fasciae Latae action | assists abduction, medial rotation, flexion of femur at hip and extension of knee, Prevents collapse of extended knee in ambulation |
Tensor Fasciae Latae nerve | superior gluteal nerve |
Sartorius origin | Anterior superior iliac spine |
Sartorius insertion | upper medial shaft of tibia |
Sarorius action | assists flexion, abduction, lateral rotation of femur at hip, assists flexion, medial rotation of knee |
Sartorius nerve | femoral nerve |
Rectus femoris origin | anterior inferior iliac spine, ilium at upper rim of acetabulum |
Rectus femoris insertion | patella, tibial tuberosity via patellar ligament |
Rectus femoris actions | extension of knee, assists flexion of femur at hip |
Rectus femoris nerve | femoral nerve |
Vastus lateralis origin | linea aspera on posterior femur, greater trochanter of femur |
vastus lateralis insertion | patella, tibial tuberosity via patellar ligament |
Vastus lateralis actions | extension of knee |
Vastus lateralis nerve | femoral nerve |
Vastus medialis origin | linea aspera on posterior femur |
Vastus medialis insertion | patella, tibial tuberosity via patellar ligament |
Vastus medialis actions | extension of knee |
Vastus medialis nerve | femoral nerve |
Vastus intermedius origin | anterior and lateral femoral shaft |
Vastus intermedius insertion | patella, tibial tuberosity via patellar ligament |
Vastus intermedius actions | extension of knee |
Vastus intermedius nerve | femoral nerve |
Pectineus origin | anterior pubis |
Pectineus insertion | between lesser trochanter and linea aspera of posterior femur |
Pectineus actions | flexion of femur at hip, assists adduction of femur at hip |
Pectineaus nerve | femoral nerve |
Adductor longus origin | anterior pubis |
Adductor longus insertion | linea aspera on posterior femur |
Adductor longus actions | adduction of femur at hip, assists flexion of femur at hip |
Adductor longus nerve | obturator |
Adductor brevis origin | anterior pubis |
Adductor brevis insertion | linea aspera on posterior femur |
Adductor brevis actions | adduction of femur at hip, assists flexion of femur at hip |
Adductor brevis nerve | obturator |
Adductor magnus origin anterior and posterior head | Anterior: inferior ramus of pubis,Posterior: Ischial tuberosity and ramus of ischium |
Adductor magnus insertion anterior and posterior head | anterior: linea aspera of femur, posterior: adductor tubercle of femur |
Adductor magnus actions anterior and posterior head | anterior: assists flexion and medial rotation of femur at hipposterior: assists extension and lateral rotation of femur at hip |
Adductor magnus nerve anterior and posterior head | anterior: obturator nerve,posterior: sciatic nerve |
Gracilis origin | inferior ramus of anterior pubis |
Gracilis insertion | medial proximal tibia |
Gracilis actions | adduction of femur at hip, assists flexion and medial rotation of flexed knee |
Gracilis nerve | obturator |
Biceps Femoris origin long and short head | long head: ischial tuberosityshort head: linea aspera |
Biceps Femoris insertion | head of fibula (lateral aspect) |
Biceps Femoris actions long and short head | long head: extension of hip,both heads: flexion of knee, lateral rotation of flexed knee |
Biceps Femoris nerve | long head: sciatic nerve tibial division,short head: sciatic nerve peroneal division |
Semitendinosis origin | ischial tuberosity |
Semitendinosis insertion | anterior proximal tibial shaft |
Semitendinosis actions | extension of hip, flexion of knee, medial rotation of flexed knee |
Semitendinosis nerve | sciatic nerve -tibial division |
Semimembrinosis origin | ischial tuberosity |
Semimembrinosis insertion | posterior medial tibial condyle |
Semimembrinosis actions | extension of hip, flexion of knee, medial rotation of flexed knee |
Semimenbrinosis nerve | sciatic nerve -tibial division |