Lower Limb Muscles Flashcards
Iliopsoas
T12-L5
Lesser trochanter
Anterior rami of lumbar nerves
Flexes, stabilises hip joint
Psoas minor
T12-L1
Pectineal line of femur, iliopectineal eminence via iliopectineal arch
Anterior rami of lumbar nerves
Flexes, stabilises hip joint
Iliacus
Iliac crest, iliac fossa, anterior sacroiliac ligaments
Psoas major tendon, lesser trochanter
Femoral nerve
Flexes, stabilises hip joint
Sartorius
ASIS
Superomedial tibial surface
Femoral nerve
Flex, abduct, lateral rotation of hip joint, flex knee joint
Rectus femoris
ASIS, above acetabulum
Patella, via patellar ligament to tibial tuberosity
Femoral nerve
Extend knee joint, stabilise hip joint, helps iliopsoas flex thigh
Vastus lateralis
Greater trochanter, lateral lip of linea aspera
Patella, via aponeurosis and patellar ligament to tibial tuberosity
Femoral nerve
Extend knee joint, stabilise hip joint
Vastus medialis
Intertrochanteric line, medial lip of linea aspera
Patella, via aponeurosis and patellar ligament to tibial tuberosity
Femoral nerve
Extend knee joint, stabilise hip joint
Vastus intermedialis
Anterior and lateral surface of shaft of femur
Patella, via patellar ligament to tibial tuberosity
Femoral nerve
Extend knee joint, stabilise hip joint
Adductor longus
Body of pubis
Middle third of linea aspera
Obturator nerve
Adducts thigh
Adductor brevis
Body and inferior ramus of pubis
Pectineal line, proximal part of linea aspera
Obturator nerve
Adducts, flexes thigh
Adductor magnus
Inferior ramus of pubis, ramus of ischium, ischial tuberosity
Gluteal tuberority, linea aspera, medial supracondylar line, adductor tubercule
Obturator nerve, tibial part of sciatic nerve
Adducts, flexes, extends thigh
Gracilis
Body and inferior ramus of pubis
Superomedial part of tibia
Obturator nerve
Adducts thigh, flexes leg, helps medial rotation
Obturator externus
Obturator foramen and membrane
Trochanteric fossa
Obturator nerve
Lateral rotation of thigh, stabilises hip joint
Gluteus maximus
Posterior ilium below posterior gluteal line, dorsal surface of sacrum and coccyx, sacrotuberous ligament
Iliotibial track - lateral tibial condyle, gluteal tuberosity
Inferior gluteal nerve
Extends thigh, lateral rotation, helps rising from sitting position
Gluteus medius
External surface of ilium between anterior and posterior gluteal lines
Greater trochanter
Superior gluteal nerve
Abducts, medially rotates thigh
Gluteus minimus
External surface of ilium between anterior and inferior gluteal line
Greater trochanter
Superior gluteal nerve
Abducts, medially rotates thigh
Tensor fascia lata
ASIS, anterior iliac crest
Iliotibial tract - lateral tibial condyle
Superior gluteal nerve
Abducts, medially rotates thigh
Piriformis
Anterior surface of sacrum, sacrotuberous ligament
Greater trochanter
Branches of anterior rami
Laterally rotate extended thigh, abduct flexed thigh, stabilise hip joint
Obturator internus
Pelvic surface of obturator membrane
Greater trochanter
Nerve to obturator internus
Laterally rotate extended thigh, abduct flexed thigh, stabilise hip joint
Superior and inferior gemelli
Iliac spine/ iliac tuberosity
Greater trochanter
Nerve to obturator internus/ nerve to quadratus femoris
Laterally rotate extended thigh, abduct flexed thigh, stabilise hip joint
Quadratus femoris
Lateral border of ischial tuberosity
Quadrate tubercule on intertrochanteric crest
Nerve to qudratus femoris
Laterally rotates thigh, stabilises hip joint
Semitendinosus
Ischial tuberosity
Superomedial surface of tibia
Tibial nerve
Extend thigh, flex leg, medial rotation of flexed knee
Semimembranosus
Ischial tuberosity
Medial condyle of tibia, reflected attachment forms oblique popliteal ligament
Tibial nerve
Extend thigh, flex leg, medially rotate flexed knee
Biceps femoris
Long head: ischial tuberosity/ Short head: linea aspera, lateral suoracondylar line
Lateral side of head of fibula, split by fibular collateral ligament
Long head: tibial nerve/ Short head: common fibular nerve
Flexes leg, medially rotates flexed knee, extends thigh
Pectineus
Superior ramus if pubis
Pectineal line of femur under lesser trochanter
Femoral nerve
Abducts, flexes thigh, medial rotatoon
