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Anatomy
Musculature EDL-EDB
| Question | Answer |
|---|---|
| Extensor Digitorum Longus PA | Lateral tibial condyle, superior medial fibula, interosseous membrane. |
| Extensor Digitorum Longus DA | Middle and distal phalanges 2nd – 5th digits. |
| Extensor Digitorum Longus A | MP, PIP and DIP extension of 2nd – 5th digits, ankle dorsiflexion. |
| Extensor Digitorum Longus N | Deep peroneal (L5, S1). |
| Plantaris PA | Lateral supracondylar line, oblique popliteal ligament. |
| Plantaris DA | Calcaneus via calcaneal tendon. |
| Plantaris A | Knee flexion, ankle plantarflexion,. |
| Plantaris N | Tibial (S1, S2). |
| Popliteus PA | Lateral condyle of femur, lateral meniscus. |
| Popliteus DA | Posterior tibia superior to soleal line. |
| Popliteus A | Tibial internal rotation to “unlock” knee, knee flexion. Retracts lateral meniscus. |
| Popliteus N | Tibial (L4, L5, S1). |
| Flexor Hallicus Longus PA | Inferior posterior fibula, inferior interosseous membrane. |
| Flexor Hallicus Longus DA | Base of distal phalanx of hallux. |
| Flexor Hallicus Longus A | MP and IP flexion of hallux, ankle plantar flexion. |
| Flexor Hallicus Longus N | Tibial (S2, S3). |
| Flexor Digitorum Longus PA | Posterior surface of tibia inferior to soleal line. |
| Flexor Digitorum Longus DA | Base of distal phalanges of 2nd – 5th digits. |
| Flexor Digitorum Longus A | MP, PIP, DIP flexion 2nd – 5th digits, ankle plantarflexion. |
| Flexor Digitorum Longus N | Tibial (S2, S3). |
| Tibialis Posterior PA | Posterior surface of fibula, posterior surface of tibia inferior to soleal line, interosseous membrane. |
| Tibialis Posterior DA | Navicular tuberosity, 3 cuneiforms, cuboid, bases of 2nd - 4th metatarsals. |
| Tibialis Posterior A | Ankle plantarflexion, foot inversion. |
| Tibialis Posterior N | Tibial (L4, L5). |
| Peroneus Tertius PA | Anterior inferior fibula and interosseous membrane. |
| Peroneus Tertius DA | Dorsal surface of base of 5th metatarsal. |
| Peroneus Tertius A | Ankle dorsiflexion, foot eversion. |
| Peroneus Tertius N | Deep peroneal (S1). |
| Extensor Digitorum Brevis PA: | Calcaneus, interosseous talocalcaneal ligament, inferior extensor retinaculum. |
| Extensor Digitorum Brevis DA: | Medial slip (1 - aka extensor hallicus brevis): proximal phalanx of hallux. Lateral slips (3): join EDL tendons to 2nd - 4th digits. |
| Extensor Digitorum Brevis A: | Medial slip: MP extension of hallux. Lateral slips: MP, PIP, DIP extension 2nd - 4th digits. |
| Extensor Digitorum Brevis N: | Deep peroneal (L5, S1). |