Anterior compartment of leg
| Anterior compartment of leg | |
|---|---|
| Details | |
| Artery | anterior tibial artery |
| Nerve | deep fibular nerve |
| Identifiers | |
| Latin | Compartimentum cruris anterius |
| TA98 | A04.7.01.005 |
| TA2 | 2643 |
| FMA | 45163 |
| Anatomical terminology | |
Muscles
The muscles of the compartment are[1]
- tibialis anterior
- extensor hallucis longus
- extensor digitorum longus
- fibularis tertius (peroneus tertius)
| Muscle | Proximal Attachment | Distal Attachment | Innervation | Main Action |
|---|---|---|---|---|
| Tibialis anterior | Lateral condyle and superior half of lateral surface of tibia and interosseous membrane | Medial and inferior surfaces of medial cuneiform and base of 1st metatarsal | Deep fibular nerve (L4, L5) |
Dorsiflexes ankle and inverts foot |
| Extensor digitorum longus | Lateral condyle of tibia and superior three quarters of medial surface of fibula and interosseous membrane | Middle and distal phalanges of lateral four digits | Extends lateral four digits and dorsiflexes ankle | |
| Extensor hallucis longus | Middle part of anterior surface of fibula and interosseous membrane | Dorsal aspect of base of distal phalanx of great toe (hallux) | Extends great toe and dorsiflexes ankle | |
| Fibularis tertius | Inferior third of anterior surface of fibula and interosseous membrane | Dorsum of base of 5th metatarsal | Dorsiflexes ankle and aids in eversion of foot |
Action
The muscles of the compartment are dorsiflexors of foot.[3]
Nerve supply
The anterior compartment of the leg is supplied by the deep fibular nerve (deep peroneal nerve). The nerve contains axons from the L4, L5, and S1 spinal nerves.
Blood supply
The compartment of the leg is supplied by anterior tibial artery.[1]
The structures of anterior compartment can be remembered using the mnemonic, "TEA DEPt" for Tibialis anterior, Extensor hallucis longus, Anterior tibial artery, Deep peroneal nerve, Extensor digitorum longus and Peroneus tertius.[1]
See also
Notes and references
- ^ a b c "Medical mnemonics". LifeHugger. Retrieved 2009-12-28.
- ^ Moore, Dally, and Agur (2014). Moore Clinically Oriented Anatomy, Table 5.10, p 591.
- ^ antlegdorsalfoot at The Anatomy Lesson by Wesley Norman (Georgetown University)
External links
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