342 



THE INFERIOR EXTREMITY 



After the mucous sheaths have been examined, the contents 

 of the anterior crural compartment may be investigated. 



Contents of the Anterior Crural Compartment. Four 



muscles are brought into view when the deep fascia of the 



M. extensor digitorum longus 

 M. peronaeus tertiu 



M. peronaeus brevi 

 M. peronaeus longus 

 Ligamentum transversum 



Sheath of peronei tendons 



Lig. malleoli lateralis 



anterius 



Lig. talo-fibularis anterior 



Retinaculum mm. pero- 



naeorum superius- 



Retinaculum mm. pero- 

 naeorum inferius 



M. extensor digitorum brevi 

 aTendon of peroneus tertiu 



Tibia 



M. extensor longus hallucis 



M. tibialis anterior 



Lig. cruciatum 



Sheath of tibialis anterior 



Sheath of tibialis posterior 



> Ligamentum cruciatum 



.Sheath of extensor digitorum 

 longus 



Sheath of extensor hallucis 

 longus 



M. extensor hallucis brevis 



D 



FIG. 153. Mucous sheath of the Dorsum of the Foot. 



front of the leg has been removed, viz., the tibialis anterior, 

 the extensor digitorum longus, the extensor hallucis longus, 

 and the peronaeus tertius. The tibialis anterior lies in relation 

 to the tibia ; the extensor digitorum longus is placed along the 

 fibula; and when those muscles are separated from one another 

 the extensor hallucis longus will be seen in the interval between 



