Term
Anterior compartment innervation: blood supply: actions: |
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Definition
Anterior compartment innervation: deep peroneal nerve blood supply: anterior tibial artery actions: dorsiflexion of foot, extension of toes |
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Term
Posterior compartment innervation: blood supply: actions: |
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Definition
Posterior compartment innervation: tibial nerve blood supply: posterior tibial artery (peroneal a. in posterior but supplies lateral) action: plantarflexion, inversion of foot, flex toes |
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Term
Lateral compartment innervation: blood supply: actions: |
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Definition
Lateral compartment innervation: superficial peroneal nerve blood supply: peroneal artery actions: eversion of foot, plantarflexion |
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Term
Muscles of the anterior compartment: |
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Definition
Anterior muscles: tibialis anterior--dorsiflexion, inversion of foot extensor digitorum longus--extends lat 4 toes extensor hallucis longus--extends 1st toe peroneus tertius--dorsiflexion, eversion of foot tendons pass anterior to ankle, deep to superior and inferior extensor retinacula |
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Term
Muscle of lateral compartment: |
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Definition
Lateral muscles: peroneus longus--everts and plantarflexes foot peroneus brevis--everts and plantarflexes foot tendons pass posterior to lateral malleolus, deep to superior and inferior peroneal retinacula |
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Term
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Definition
Drop foot: damage to deep peroneal nerve in anterior compartment no dorsiflexion of foot dorsiflexion must happen for heel strike to occur in bipedalism |
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Term
| Muscles of superficial posterior compartment: |
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Definition
Superficial posterior compartment: gastrocnemius--plantarflexes foot, flexes leg--quick soleus--plantarflexes foot--repetition plantaris--weak plantarflexion, flexes leg |
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Term
superficial posterior leg tendo calcaneus formed by: |
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Definition
superficial posterior leg gastrocnemius and soleus form tendo calcaneus |
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Term
superficial posterior leg triceps surae formed by: |
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Definition
superficial posterior leg gastrocnemius + soleus + plantaris = triceps surae |
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Term
Muscles of deep posterior compartment: |
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Definition
deep posterior compartment: popliteus--flexes knee rotates tibia medially/femur laterally, helps "unlock" knee at beginning of flex tibialis posterior--plantarflexes, inverts foot flexor digitorum longus--flexes lat 4 toes, plantarflexes foot flexor hallucis longus--flexes 1st toe, plantarflexes foot tendons (TDH) run posterior to medial malleolus and under flexor retinaculum to plantar foot, muscles help steady leg on foot when standing |
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