PLATE YI. 



This figure represents the posterior face of the digital 

 region, flexed backward in a manner to show in its full ex- 

 tent the inferior or plantar face of the foot. 



The skin has been lifted from above the third phalanx, 

 and the enveloping sheaths of the tendons are dissected. The 

 velvety tissue is preserved. 



A. Median part of the pyramidal body (fleshy frog) of plantar 



cushion, or sensitive tissue of the sole. 



B. Branches of the pyramidal body. 



C. Cartilaginous bulb. 



E. Angle of inflection of the branches of the pyramidal body. 



F. Point or apex of the fleshy frog. 



J. Interval of separation of the two branches of the perforatus. 



L. Lateral lacunae of the pyramidal body. 



M. Median lacunae of the pyramidal body. 



Q, Q. Fibrous sheath of union of the two branches of the perforatus. 



R. Branches of theperforatus directing th emselves towardtheir point 

 of insertion at the second phalanx. 



T. Tendon of the perforatus. 



T'. Tendon of the perforans at its passage between the branches of 

 the perforatus. 



V. Strengthening sheath of the plantar aponeurosis. 



X. Lateral bands of the strengthening sheath of the plantar aponeu- 

 rosis, which cross the direction of the branches of the perfo- 

 ratus to go and attach themselves on the lateral parts of the 

 first phalanx. 



