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Knee Attach & Action
Anatomy
Question | Answer |
---|---|
Soleus (the calf) | Proximal Third of Tibia & Fibula TO Calcaneus |
Plantaris | Distal Femur TO Calcaneus |
Gastrocnemius | Medial Femoral Condyle; Lateral Femoral Condyle TO Calcaneus |
Popliteus | Lateral Femoral Condyle &lateral meniscus TO Posterior tibia |
Flexor Digitorum Longus | Posterior Midshaft of Tibia TO Bases of Distal Phalanges 2-5 |
Flexor Hallucis Longus | Inferior Posterior Fibula TO Base of Distal Phalanx I |
Tibialis posterior | Inteross mem; post tib & fib TO Tuberosity of nav, cuboid, & cuneiform; base of MC 2-4 |
Tibialis Anterior | Lat Tibial Condyle; Lateral Tibial Shaft TO Medial Cuneiform; Base of Metatarsal 1 |
Extensor Hallucis Longus | Anterior Fibula & inteross mem TO Dorsal Distal Phalanx of Digit I |
Extensor Digitorum Longus | Lateral tibia condyle; Medial Fibular Shaft; inteross mem TO Middle & distal Phalanges 2-5 |
Fibularis (Peroneus) Longus | Lateral surface of Fibula TO Base of First Metatarsal; Medial Cuneiform Bone; Runs across sole of foot to insert on base of first metatarsal |
Fibularis brevis | Lateral surface of Fibula TO base of 5th metatarsal |
Action: Soleus (the calf) | plantarflex ankle |
Action: Plantaris | Weakly flex knee, plantarflex ankle |
Action: Gastrocnemius | flex knee; plantarflex ankle |
Action: Popliteus | Unlocks extended knee (rotates femur laterally) |
Action: Flexor Digitorum Longus | Flex digits 2-5 at MTP, PIP, and DIP joints; Plantar flex ankle |
Action: Flexor Hallucis Longus | Flex hallux (big toe) at MTP and IP joints; Weakly plantar flex ankle |
Action: Tibialis posterior | Plantar flex ankle; Invert foot |
Action: Tibialis Anterior | Dorsiflex ankle, invert foot, support medial arch of foot |
Action: Extensor Hallucis Longus | Extend hallux, dorsiflex ankle |
Action: Extensor Digitorum Longus | Dorsiflex ankle, extend digits 2-5; form dorsal digital expansions |
Action: Fibularis (Peroneus) Longus | Supports arch of foot; evert foot; weakly plantar flex |
Action: Fibularis brevis | Supports arch of foot; evert foot; weakly plantar flex |