Lateral compartment of leg
From Wikipedia, the free encyclopedia
The lateral compartment of the leg is a fascial compartment of the lower leg. It contains muscles which make eversion and plantarflexion of the foot.
Latincompartimentum cruris laterale
| Lateral compartment of leg | |
|---|---|
Diagram of leg compartments | |
Dissection video of lateral compartment of leg (1 min 9 sec) | |
| Details | |
| Artery | Fibular artery |
| Nerve | Superficial fibular nerve |
| Identifiers | |
| Latin | compartimentum cruris laterale |
| TA98 | A04.7.01.009 |
| TA2 | 2651 |
| FMA | 45185 |
| Anatomical terminology | |
Muscles
The lateral compartment of the leg contains:
| Image | Muscle | Origin | Insertion | Innervation | Main Action |
|---|---|---|---|---|---|
 |
Fibularis longus | Head and superior two thirds of lateral surface of fibula | Base of 1st metatarsal and medial cuneiform | Superficial fibular nerve (L5, S1, S2) | Everts foot and weakly plantarflexes ankle |
 |
Fibularis brevis | Inferior two thirds of lateral surface of fibula | Dorsal surface of tuberosity on lateral side of base of 5th metatarsal |
Action
- Foot evertors
- Foot plantarflexion
Nerve supply
The lateral compartment of the leg is supplied by the superficial fibular nerve (superficial peroneal nerve).
Blood supply
Its proximal and distal arterial supply consists of perforating branches of the anterior tibial artery and fibular artery.[3]
Additional images
Animation. Fibularis longus (blue) and fibularis brevis (red).
