ABDOMEN AND PELVIS 



457 



(e) Reflex ligament of Colles (ligamentum reflexum [Collesi]) (0. T. 

 triangular fascia of the abdomen). From which muscle is it 

 derived ? This ligament is often referred to as the crus posterius. 

 Roof of inguinal canal. 



What structures enter into its formation? 

 Floor of inguinal canal. 



How is it formed? What are the contents of the canal in the male? 

 In the female? (Vide Fig. 235.) 



FIG. 235. 



Funiculus spermaticus \ 



Fascia cremasterica (Cooperi) s 



Plexus pampiniformi 



Remnant of the processus vaginal! 

 peritonaei 



M. cremaster- 

 Tunica vaginalis communis- 



Tunica vaginalis propria 

 Testis 



The spermatic cord of a boy two months old, with the coverings of the cord opened up and showing 

 the remnant of the vaginal process of the peritoneum. (After Toldt, Anat. Atlas, Wien, 1900, 2 Aufl., 

 p. 507, Fig. 878.) 



Spermatic Cord (Funiculus spermaticus). 



Each covering should be carefully dissected out and traced 

 back to the muscle or fascia from which it is derived. 



(1) External spermatic fascia (fascia spermatica externa). 



(2) Cremasteric fascia (fascia cremasterica [Cooperi]). 



(3) Cremasteric muscle (M. cremaster). 



Dissect out carefully these muscular fibres and determine accu- 

 rately their origin and insertion. Consult Poirier et Charpy, t. ii. 

 p. 451, concerning the different views held regarding the origin 

 and significance of the M. cremaster. 



What is its nerve supply and action? What part does it play 

 in the Cremasteric reflex? 



(4) Vaginal process of fascia transversalis (processus vaginalis fasciae 



transversalis) (0. T. infundibuliform fascia). 



(5) What is the fate of the peritoneal process that descended into the 



scrotum (processus vaginalis peritonaei) ? What is the tunica 

 vaginalis communis [testis et funiculi sperm atici] )1 



