Muscles Flashcards by Laura Tan

Gluteus Medius

Greater trochanter of femur.

Abducts thigh at hip joint and medially rotates thigh

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Gluteus Maximus

Lateral part of linea aspera, under greater trochanter of femur.
Extends thigh at hip joint and laterally rotates thigh

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Gluteus Minimus

Greater trochanter of femur.

Abducts thigh at hip joint and medially rotates thigh

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Iliacus

Lesser trochanter of femur.

Flex thigh, rotate thigh laterally, flex trunk on hip.

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Obturator Externus

Depression inferior to greater trochanter.

Laterally rotates and abducts thigh at hip joint.

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Obturator Internus

Medial surface of greater trochanter.

Laterally rotates and abducts thigh at hip joint.

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Pectineus

Pectineal line, between lesser trochanter and linea aspera.

Flexes and adducts thigh at hip joint.

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Piriformis

Greater trochanter.

Laterally rotates and abducts thigh at hip joint.

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Psoas Major

Lesser trochanter.

Flex thigh, rotate thigh laterally, flex trunk on hip.

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Quadratus Femoris

Superior to mid portion of intertrochanteric crest.

Laterally rotates and stabilizes hip joint.

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Tensor Fascia Latae

Tibia.

Flexes and abducts thigh at hip joint.

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Adductor Brevis

Linea aspera.

Adducts and flexes thigh at hip joint and rotates thigh.

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Adductor Longus

Linea aspera.

Adducts and flexes thigh at hip joint and rotates thigh.

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Adductor Magnus

Linea aspera.

Adducts thigh at hip joint and rotates thigh.

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Gracilis

Tibia.

Adducts thigh at hip joint, medially rotates thigh and flexes leg at knee joint.

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Sartorius

Tibia.

Weakly flexes leg at knee joint, weakly flexes, abducts and laterally rotates thigh at hip joint.

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Tensor Fasciae Latae

Tibia.

Flexes and abducts thigh at hip joint.

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Rectus Femoris

Patella, tibial tuberosity.

Extend leg at knee joint, flexes thigh.

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Vastus Medialis

Patella, tibial tuberosity.

Extend leg at knee joint.

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Vastus Intermedius

Patella, tibial tuberosity.

Extend leg at knee joint.

Vastus Lateralis

Patella, tibial tuberosity.

Extend leg at knee joint.

Biceps Femoris

Head of fibula and lateral condyle of tibia.

Flexes leg at knee joint and extends thigh at hip joint.

Semitendinosus

Medial surface of tibia.

Flexes leg at knee joint and extends thigh at hip joint.

Semimembranosus

Medial condyle of tibia.

Flexes leg at knee joint and extends thigh at hip joint.

Tibialis Anterior

1st metatarsal and 1st cuneiform. | Dorsiflexes foot at ankle and inverts for at intertarsal joints.

Extensor Hallucis Longus

Distal phalanx of great toe. | Dorsiflexes foot at ankle and extends proximal phalanx of great toe at metatarsophlangeal joint.

Extensor Digitorum Longus

2-5 phalanges of toes. | Dorsiflexes foot at ankle.

Peroneus Tertius

Base of fifth metatarsal. | Dorsiflexes foot at ankle joint.

Extensor Digitorium Brevis

2-4 toes and proximal phalanx of great toe.

Gastrocnemius

Calcaneus. | Plantar flexes foot at ankle and flexes leg at knee.

Soleus

Calcaneus. | Plantar flexes foot at ankle.

Plantaris

Calcaneus. | Plantar flexes foot at ankle, flexes leg at knee.

Popliteus

Proximal tibia. | Flexes leg at knee and medially rotates tibia to unlock the extended knee.

Flexor Digitorium Longus

distal phalanges of toes 2-5. | Plantar flexes foot at ankle.

Flexor Hallucis Longus

Distal phalanx of great toe. | Plantar flexes foot at ankle joint.

Tibialis Posterior

2-4 metatarsals, navicular, 3 cuneiforms and cuboid.

Peroneus Longus

1st metatarsal and 1st cuneiform. | Plantar flexes foot at ankle joint.

Peroneus Brevis

Base of fifth metatarsal. | Plantar flexes foot at intertarsal joint.

Abductor Hallucis

1st layer. Medial side of great toe phalanx. Abducts and flexes great toe at metatarsophlangeal joint.

Flexor Digitorum Brevis

1st layer. Sides of middle phalanx of toes 2-5. Flexes toes 2-5 at proximal interphalangeal and metatarsophlangeal joints.

Abductor Digiti Minimi

1st layer. Lateral side of proximal phalanx of little toe. Abducts and flexes little toe at metatarsophlangeal joint.

Quadratus Plantae

2nd layer. Tendon of flexor Digitorium Longus. Flex toes 2-5.

Lumbricals

2nd layer. Tendons of extensor digitorium longus on proximal phalanges of toes 2-5. Extend toes 2-5 at interphalangeal joint & flex toes 2-5 at metatarsophlangeal joint.

Flexor Hallucis Brevis

3rd layer. Proximal phalanx of great toe. Flexes great toe at metatarsophlangeal joint.

Adductor Hallucis

3rd layer. Lateral side of proximal phalanx of great toe. Adducts and flexes great toe at metatarsophlangeal joint.

Flexor Digiti Minimi Brevis

3rd layer. Lateral side of proximal phalanx of great toe. Flexes little toe at metatarsophlangeal joint.

Dorsal Interossei

4th layer. Proximal phalanges: both sides of toe 2 and lateral side of toes 3&4. Abduct and flex toes 2-4 metatarsophlangeal joint and extend toes at interphalangeal joint.

Plantar Interossei

4th layer. Medial side of proximal phalanges of toes 3-5. Adducts and flex proximal metatarsophlangeal joints and extend toes at interphalangeal joints.