PLATE XX. 



Arterial Yessels. 



Fig. 1 represents a disj)osition of the digital artery in the in- 

 terior of the third johalanx different from that given in plate 17. 



The semi-lunar anastomosis in this figure shows a circle almost 

 complete. 



S Plantar artery in the plantar fissure. 



T Circle of the anastomosis of the two plantar arteries in the semi-lunar 



sinus. 

 Y Descending radiated divisions of the semi-lunar anastomosis. 



Fig. 2. 



It shows the disposition of the anterior terminal branch or external of 



the digital artery or pre-plantar artery. 

 N Digital artery. 

 P Circumflex artery formed by the divisions at X which emerge from the 



vascular orifices that open above the notched body of the bone. 

 Q Pre-plantar artery. 

 R Peturning branch of the external branch of the digital. Between Q 



and R we see in this figure the third branch of the external terminal 



branch of the digital which goes to contribute to the formation of 



the circumflex artery. 



