88 



PRACTICAL ANATOMY. 



term, is called granular. Remove all this fatty tissue, and notice it becomes less 

 abundant in the hollow of the foot and toward the toes. 



The deep fascia occurs in the sole of the foot, under two names : (i) From 

 the heel to the clefts of the toes it is called plantar fascia ; (2) from the clefts of 

 the toes onward it forms very dense sheaths for the flexor tendons of the toes. 

 These sheaths are called the ligamenta vaginales (ligamentum vaginalis, in the 

 singular). 



Dissection of Plantar Fascia and Ligamenta Vaginales. Having now cut 

 through the dense, deep fascia of the toes, the ligamenta vaginales, you 



External calcanean artery 

 Cutaneous branch of external plantar 



* 



Abductor minimi digit! 



Anastomolic branch 

 External plantar artery 



Pint digital to outer side of 



lillle, lot 

 Lumbrieal muscle 



Second digital 

 Third digital 

 Fourth digital 



Anastomosis about inter- 



phalangeal joint 

 Dorsal branch of collateral 

 digital 



Anastomosis of collateral 

 arteries around matrix of nail 

 and pulp of toe 



Internal calcanean artery 



Cutaneous branch of internal 

 plantar 



Plantar fascia, cut 



Abductor ballucia 



Internal plantar artery 



Flexor brevis digitorum 



Branch of internal plantar to 

 iliiiilnl tirfcries (superficial 

 digital] 



Flexor brevis hallucis 



Princeps hallucis, or fifth plantar 

 digital artery 



Collateral digital branch of princeps 



hallucis to second toe 

 Collateral diiiiinl branch // 



AofitCdfefO iinn-r si<l? of ijrrat toe 

 Collateral digital branch nf/irincrps 

 hallucis to outer side of great toe 



I ic. 273. THE PLANTAR AKTI KIK>. 

 (From a dissection in the Museum of St. Bartholomew's Hospital.) 





must find : (i) The theca ajid the thecal culs-de-sac, the synovial sheath of the 

 tendons ; (2) the vincula, delicate thread-like bands of deep fascia ; (3) the ten- 

 dons of the flexor longns digitorum ; (4) the tendons of the flexor brevis digi- 

 torum ; (5) the slits, in tendons of the flexor brevis digitorum ; (6) the grooves 

 on the plantar surfaces of the pedal phalanges ; (7) the outer division of tin- 

 plantar fascia, quite thin, covering the abductor minimi digiti muscle ; (8) the inner 

 division of the plantar fascia, quite thin, covering the abductor hallucis ; (9) the 

 middle division of the plantar fascia, very thick, strong, and glistening, covering 

 the flexor brevis digitorum ; (10) two intermuscular grooves almost under tin- 





