Term
| Leg (Crural) Muscle Divisions |
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Definition
Anterior, lateral, posterior superficial, and posterior deep
Divided by connective tissue septa |
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Term
| Muscles of the Anterior Leg |
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Definition
Tibialis anterior, extensor digitorum longus, extensor hallicis longus, fibularis (peroneus) tertius
ACTIONS: Dorsiflexors of foot, extensors of toes
INNERVATION: Deep fibular (Peroneal) nerve |
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Term
| Muscles of the Lateral Leg |
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Definition
Fibularis (peroneus) longus/brevis
ACTIONS: Plantar flexors and evertors of foot
INNERVATION: Superficial fibular (peroneal) nerve |
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Term
| Muscles of the Posterior Leg (Superficial) |
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Definition
Gastrocnemius, soleus, plantaris
ACTIONS: Plantar flexors of foot
INNERVATION: Tibial nerve |
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Term
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Definition
In superficial, posterior leg
Gastrocnemius and soleus |
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Term
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Definition
ACTION: Plantar flexes foot (ankle), flexes leg (knee)
INNERVATION: Tibial nerve
Triceps Surae |
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Term
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Definition
ACTION: Plantar flexes foot (ankle)
INNERVATION: Tibial nerve
Triceps Surae |
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Term
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Definition
ACTION: Plantar flexes foot (ankle), flexes leg (knee)
INNERVATION: Tibial nerve |
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Term
| Muscles of the Posterior Leg (Deep) |
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Definition
Popliteus, flexor hallucis longus, flexor digitorum brevis, tibialis posterior
ACTION: Plantar flexors and inverters of foot and flexors of toes
INNERVATION: Tibial nerve |
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Term
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Definition
ACTION: Flexes leg (knee), medially rotates tibia to unlock extended knee
INNERVATION: Tibial nerve |
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Term
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Definition
ACTION: Flexes digit 1/hallux, plantar flexes foot (ankle)
INNERVATION: Tibial nerve |
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Term
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Definition
ACTION: Flexes digits 2-5, plantar flexes foot (ankle)
INNERVATION: Tibial nerve |
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Term
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Definition
ACTION: Plantar flexes foot (ankle), inverts foot (intertarsals)
INNERVATION: Tibial nerve |
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Term
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Definition
ACTION: Dorsiflexes foot (ankle), inverts foot (intertarsal)
INNERVATION: Deep fibular (peroneal) nerve |
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Term
| Extensor Digitorum Longus |
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Definition
ACTION: Extends digits 2-5, dorsiflexes foot (ankle)
INNERVATION: Deep fibular (peroneal) nerve |
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Term
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Definition
ACTION: Extends digit 1/hallux, dorsiflexes foot (ankle)
INNERVATION: Deep fibular (peroneal) nerve |
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Term
| Fibularis (Peroneus) Tertius |
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Definition
ACTION: Dorsiflexes foot (ankle), everts foot (intertarsal)
INNERVATION: Deep fibular (peroneal) nerve
Not everyone has this muscle |
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Term
| Fibularis (Peroneus) Longus |
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Definition
ACTION: Plantar flexes foot (ankle), everts foot (intertarsal)
INNERVATION: Supercifial fibular (peroneal) nerve |
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Term
| Fibularis (Peroneus) Long |
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Definition
ACTION: Plantar flexes foot (ankle), everts foot (intertarsal)
INNERVATION: Supercifial fibular (peroneal) nerve |
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Term
| Muscles of the Foot (Dorsum) |
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Definition
| Extensor digitorum brevis |
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Term
| Extensor Digitorum Brevis |
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Definition
ACTION: Extends digits 1-4
INNERVATION: Deep fibular (peroneal) nerve |
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Term
| Muscles of the Foot (Plantar) |
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Definition
| Abductor hallucis, flexor digitorum brevis, abductor digiti minimi |
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Term
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Definition
ACTION: Abducts digit 1/hallux
INNERVATION: Medial plantar nerve |
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Term
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Definition
ACTION: Flexes digits 2-5
INNERVATION: Medial plantar nerve |
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Term
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Definition
ACTION: Abducts digit 5/minimi
INNERVATION: Lateral plantar nerve |
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