Properties of Leg Muscles
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Gluteus Max: origin | show 🗑
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| show | IT tract, gluteal tuberosity of femur
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| Gluteus Max: Action | show 🗑
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| Gluteus max: innervation | show 🗑
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| show | external surface of ilium between the anterior and posterior gluteal lines
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| Gluteus medius: insertion | show 🗑
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| Gluteus medius: action | show 🗑
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| Gluteus medius: innervation | show 🗑
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| show | external surface of ilium between the anterior and inferior gluteal lines
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| show | anterior surface of the greater trochanter of the femur
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| show | abducts and medially rotates thigh
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| show | Superior gluteal nerve
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| show | laterally rotates extended thigh and abducts flexed thigh
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| show | anterior surface of sacrum and sacrotuberous ligament
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| show | superior border of greater trochanter of femur
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| show | branches of ventral rami of S1 and S2
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| Obturator internus: origin | show 🗑
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| show | trochanteric fossa
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| obturator internus: action | show 🗑
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| obturator internus: innervation | show 🗑
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| show | ischial spine
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| show | trochanteric fossa
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| show | laterally rotates extended thigh and abducts flexed thigh (with obturator internus and piriformis)
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| show | nerve to obturator internus
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| show | ischial tuberosity
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| inferior gamellus: insertion | show 🗑
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| show | laterally rotates extended thigh and abducts flexed thigh (with piriformis, obturator internus, and superior gamellus)
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| show | nerve to quadratus femoris
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| quadratus femoris: origin | show 🗑
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| show | middle portion of intertrochanteric crest and the area below it
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| quadratus femoris: action | show 🗑
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| quadratus femoris: innervation | show 🗑
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| show | piriformis, obturator internus, superior and inferior gemellus, quadratus femoris
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| semitendinosus: origin | show 🗑
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| show | medial surface of superior part of tibia
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| show | extend thigh (flex leg and rotate it medially when knee is flexed; when thigh and leg are flexed, can extend trunk)
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| semitendinosus: innervation | show 🗑
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| semimembranosus: origin | show 🗑
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| show | posterior part of medial condyle of tibia
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| show | extend thigh (flex leg and rotate it medially when knee is flexed; when thigh and leg are flexed, can extend trunk)
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| show | tibial division of sciatic nerve
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| biceps femoris: origin | show 🗑
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| biceps femoris: insertion | show 🗑
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| show | flexes leg and rotates it laterally when knee is flexed; extends thigh
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| show | Long head: tibial division of sciatic nerve. Short head: common fibular division of sciatic nerve
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| 3 hamstring muscles | show 🗑
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| pectineus: origin | show 🗑
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| pectineus: insertion | show 🗑
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| show | adducts and flexes thigh, assists with medial rotation of thigh
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| show | femoral nerve
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| psoas major: origin | show 🗑
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| show | flex thigh and stabilize joint
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| show | lesser trochanter of femur
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| show | ventral rami of lumbar nerves (L1-3)
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| show | sides of T12-L1 vertebrae and discs
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| psoas minor: insertion | show 🗑
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| show | flex thigh and stabilize joint (with psoas major and iliacus)
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| psoas minor: innervation | show 🗑
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| show | iliac crest, iliac fossa, ala of sacrum, and anterior sacroiliac ligaments
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| iliacus: insertion | show 🗑
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| iliacus: action | show 🗑
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| show | femoral nerve
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| show | psoas major and minor, iliacus
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| show | anterior superior iliac spine and anterior part of iliac crest
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| show | IT tract that attaches to the lateral condyle of the tibia
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| show | abducts, medially rotates, and flexes thigh
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| show | superior gluteal nerve
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| sartorius: origin | show 🗑
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| sartorius: insertion | show 🗑
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| show | flexes, abducts, and laterally rotates thigh at hip joint; flexes leg at knee joint
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| sartorius: innervation | show 🗑
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| Muscles of quadriceps femoris | show 🗑
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| Quadriceps group: insertion | show 🗑
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| quadriceps group: action | show 🗑
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| quadriceps group: innervation | show 🗑
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| rectus femoris: origin | show 🗑
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| show | extends leg at knee, steadies hip joint and helps iliopsoas flex thigh
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| vastus lateralis: origin | show 🗑
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| vastus medialis: origin | show 🗑
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| show | anterior and lateral surfaces of body of femur
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| adductor longus: origin | show 🗑
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| adductor longus: insertion | show 🗑
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| adductor longus: action | show 🗑
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| adductor longus: innervation | show 🗑
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| show | body and inferior ramus of pubis
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| show | pectineal line and proximal part of linea aspera
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| show | adducts thigh and to some extent flexes it
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| show | obturator nerve, branch of anterior division
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| show | inferior ramus of pubic ramus of ischium
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| adductor magnus (adductor part): insertion | show 🗑
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| show | adducts and flexes thigh
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| adductor magnus (adductor part): innervation | show 🗑
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| show | ischial tuberosity
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| show | adductor tubercle of femur
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| show | adducts and extends thigh
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| adductor magnus (hamstring part): innervation | show 🗑
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| gracilis: origin | show 🗑
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| gracilis: insertion | show 🗑
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| gracilis; act ion | show 🗑
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| gracilis: innervation | show 🗑
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| obturator externus: origin | show 🗑
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| show | trochanteric fossa of femur
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| obturator externus: innervation | show 🗑
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| obturator externus: action | show 🗑
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| show | lateral condyle and superior half of lateral surface of tibia and interosseous membrane
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| tibialis anterior: insertion | show 🗑
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| tibialis anterior; action | show 🗑
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| show | deep fibular (peroneal)nerve
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| extensor digitorum longus: origin | show 🗑
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| extensor digitorum longus: insertion | show 🗑
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| show | extends lateral 4 digits and dorsiflexes ankle
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| show | deep fibular nerve
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| show | middle part of anterior surface of fibula and interosseous membrane
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| show | dorsal aspect of base of distal phalynx of great toe
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| show | extends great toe and dorsiflexes ankle
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| show | deep fibular nerve
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| show | inferior third of anterior surface of fibula and interosseous membrane
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| show | dorsum of base of 5th metatarsal
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| show | dorsiflexes ankle and aids in eversion of the foot
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| fibularis tertius: innervation | show 🗑
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| fibularus longus: origin | show 🗑
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| fibularis longus: insertion | show 🗑
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| show | everts foot and weakly plantar flexes ankle
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| fibularis longus: innervation | show 🗑
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| fibularis brevis: origin | show 🗑
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| fibularis brevis: insertion | show 🗑
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| fibularis brevis: action | show 🗑
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| fbularis brvis: innervation | show 🗑
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| show | tibialis anterior, extensor digitorum longus, extensor hallucis longus, fibularis tertius
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| show | fibularis longus and brevis
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| show | lateral head: lateral aspect of lateral femoral condyle. Medial Head: popliteal surface of femur superior to medial condyle
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| show | posterior surface of calcaneous via calcaneal tendon
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| show | plantarflexes anke when knee is extended, raises heel during walking, flexes leg at knee
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| show | tibial nerve
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| soleus; origin | show 🗑
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| soleus: insertion | show 🗑
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| soleus: action | show 🗑
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| soleus: innervation | show 🗑
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| plantaris: origin | show 🗑
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| plantaris: insertion | show 🗑
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| show | weakly assists gastroc in plantarflexing ankle and flexing knee
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| show | tibial nerve
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| popliteus: origin | show 🗑
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| show | posterior surface of tibia, superior to soleal line
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| popliteus: action | show 🗑
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| show | tibial nerve
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| show | inferior 2/3 of posterior surface of fibula and inferior part of interosseous membrane
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| show | base of distal phalynx of great toe
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| show | flexes great toe at all joints and weakly plantarflexes ankle; supports medial longitudinal arches of foot
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| flexor hallucis longus: innervation | show 🗑
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| show | medial part of post surface of tibia inferior to soleal line and by a broad tendon to fibula
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| flexor digitorum longus: insertion | show 🗑
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| show | flexes lateral 4 digits and plantarflexes ankle, supports longitudinal arches of foot
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| show | tibial nerve
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| tibilais posterior: origin | show 🗑
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| show | tuberosity of navicular, cuneiform, and cuboid, and bases of 2-4 metatarsals
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| tibialis posterior: action | show 🗑
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| tibialis posterior: innervation | show 🗑
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| show | tibial nerve
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| show | obturator internus, superior gemellus
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| 2 muscles innervated by the nerve to quadratus femoris | show 🗑
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| 3 posterior thigh muscles | show 🗑
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| show | Short head of biceps femoris is innervated by the common fibular division of the sciatic nerve
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| 10 anterior thigh muscles | show 🗑
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| 5 medial thigh muscles | show 🗑
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| show | obturator nerve
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| show | Fibular nerve
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| Nerve of posterior leg muscles | show 🗑
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