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PECTINEUS
PA: Superior ramus of pubis
- DA: Pectineal line of femur
- A: Hip Adduction, IR, & Flexion
- N: Femoral (L2, L3) may receive a branch from obturator nn.
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RECTUS FEMORIS
PA: AIIS (straight head) & ilium superior to acetabulum (reflected head)
DA: Quadriceps tendon; Patella, tibial tubercle via patellar ligament.
A: Hip flexion, knee extension
(L2, L3, L4)
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ARTICULARIS GENU
PA: Inf part of ant aspect of femur
DA: Synovial membrane of knee & suprapatellar bursa
A: Pulls synovial membrane sup. during knee ext.
N: Femoral (L2, L3, L4)
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ADDUCTOR BREVIS
PA: Body & inf ramus of pubis
DA: Pectineal line of femur & proximal linea aspera
A: Hip adduction & flexion
- N: Obturator (L2, L3, L4)
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ADDUCTOR LONGUS
PA: Body of pubis inf to pubic crest
DA: Middle 3rd linea aspera
A: Hip adduction
N: Obturator (L2, L3, L4)
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ADDUCTOR MAGNUS
- PA: HS: Ischial Tuberosity
- AD: Ramus of ischium & inf ramus of pubis
- DA: HS: Adductor Tubercle
- AD: Gluteal tuberosity, linea aspera, medial supracondylar line
- A: HS: Hip add & ext
- AD: Hip add & flex
- N: HS: Tibial (L4)
- AD: Obturator (L2, L3, L4)
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GRACILIS
PA: Body & inf ramus of pubis
DA: Sup surface of medial tibial (pes anserine)
A: Hip adduction, knee flex & tibial IR
N: Obturator (L2, L3)
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FIBULARIS TERTIUS
PA: Ant inf fibula & interosseous membrane
DA: Dorsal surface of base of 5th metatarsal
A: Ankle DF, Foot eversion
N: Deep Fibular (L5, S1)
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PLANTARIS
PA: Lat supracondylar line, oblique popliteal lig.
DA: Calcaneus via calcaneal tendon
A: Weak knee flex & ankle PF
N: Tibial (S1, S2)
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POPLITEUS
PA: Lat condyle of femur, lat meniscus
DA: Post tibia sup to soleal line
A: Tibial IR to "unlock" knee, knee flex, retracts lat meniscus
N: Tibial (L4, L5, S1)
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FLEXOR HALLICUS LONGUS
PA: Inf post fibula, inf interosseous membrane
DA: Base of distal phalanx of hallux
A: MP & IP flex of hallux, ankle PF, supports med longitudinal arch
N: Tibial (S1, S2, S3)
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FLEXOR DIGITORUM LONGUS
PA: Post tibia inf to soleal line, fibula via broad tendon
DA: Base of distal phalnages 2nd - 5th digits
A: MP, PIP, DIP flex of 2nd -5th digits, ankle PF, supports longitudinal arches of foot
- N: Tibial (S1, S2, S3)
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TIBIALIS POSTERIOR
PA: Post fibula, post tibia inf to soleal line, interosseous membrane
DA: Navicular tuberosity, 3 cuneiforms, cuboid, sustentaculum tali, bases of 2-4th metatarsals
A: Ankle PF, foot inversion
- N: Tibial (L4, L5)
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EXTENSOR DIGITORUM BREVIS
PA: Calcaneus (floor of tarsal sinus), interosseous talocalcaneal lig, stem of inf extensor retinaculum
DA: Med slip: prox phalanx of hallux. Lat slip: join EDL tendons to 2nd-4th digits
A: Med slip: MP ext of hallux. Lat slip: MP, PIP, DIP ext of 2nd -4th digits
N: Deep fibular (L5, S1)
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ABDUCTOR HALLICUS
PA: Med tubercle of calcaneal tuberosity, flexor retinaculum, plantar aponeurosis
DA: Med side of base of prox phalanx of hallux
A: MP abd & hallux flex
- N: Med plantar (S2, S3)
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FLEXOR DIGITORUM BREVIS
PA: Med tubercle of calcaneal tuberosity, plantar aponeurosis, intermuscular septum
DA: Middle phalanges of 2-5th digits
A: MP & PIP flex of 2-5th digits
N: Medial Plantar (S2,S3)
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ABDUCTOR DIGITI MINIMI
PA: Med & Lat tubercles of calcaneal tuberosity, plantar aponeurosis, intermuscular septum
DA: base of prox phalanx of 5th digit
A: MP abd & flex of 5th digits
N: Lateral Plantar (S2, S3)
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QUADRATUS PLANTAE
PA: Med surface & Lat margin of plantar surface of calcaneus
DA: flexor digitorum longus tendon
A: MP, PIP, DIP flex of 2-5th digits
- N: Lateral Plantar (S2, S3)
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LUMBRICALS
- PA: Tendons of flexor digitorum longus
- DA: Expansions of 2-5th digits
A: MP flex, DIP & PIP ext 2-5th digits
N: Medial lumbricals 1st: Medial Plantar (S2,S3) Lateral lumbricals 2-4th: Lateral Plantar (S2,S3)
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FLEXOR HALLICUS BREVIS
PA: Plantar surface of cuboid & lateral cuneiform
DA: base of prox phalanx of hallux
A: MP flex of hallux
N: Medial Plantar (S2, S3)
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ADDUCTOR HALLICUS
PA: Oblique head: bases of 2-4th metatarsals. Transverse head: plantar ligaments of MP jts.
DA: Base of prox phalanx of hallux
A: MP add of 1st digit. Supports transverse arch
N: Deep branch of Lateral Plantar (S2, S3)
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FLEXOR DIGITI MINIMI BREVIS
PA: Base of 5th metatarsal
DA: Base of prox phalanx of 5th digit
A: MP flex of 5th digit
N: Superficial branch of Lateral Plantar (S2,S3)
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DORSAL INTEROSSEI
PA: Adjacent sides of 1-5th metatarsals
DA: 1st: medial side of prox phalanx of 2nd digit. 2-4th: lat sides of prox phalanx of 2-4th digits
A: MP abd & flex of 2-4th digits
- N: Lateral Plantar (S2, S3)
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PLANTAR INTEROSSEI
PA: Bases & med sides of 3-5th metatarsals
DA: Med sides of prox phalanx 3-5th digits
A: MP add & flex of 3-5th digits
N: Lateral Plantar (S2,S3)
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