THE TESTES AND THEIR COVERINGS 



1237 



lescend to the inguinal canal, along which they pass with the spermatic cord, 

 and, emerging at the subcutaneous inguinal ring, they descend into the scrotum, 

 becoming invested in their course by coverings derived from the serous, muscular, 

 and fibrous layers of the abdominal parietes, as well as by the scrotum. 

 The coverings of the testes are, the 



Skin \ c 



T-i f bcrotum. 



Dartos tunic J 



Intercrural fascia. 



Cremaster. 



Infundibuliform fascia. 

 Tunica vaginalis. 



RIGHT INGUINAL CANAL 

 (OPENED) 



CREMASTERIC MUSCLE- - 

 AND FASCIA 



INTERCOLUMNAR 

 FASCIA 



(PERSISTENT SEROUS 



-i CAVITY AROUND 



(CORD EXCEPTIONAL 



TUNICA VAQINALIS 



--INFUNDIBULIFORM 



FASCIA 

 SESSILE 

 HYDATID 



RIGHT HALF OF SCROTUM SKIN 



LEFT HALF OF SCROTUM 



FIG. 1143. The scrotum. On the left side the cavity of the tunica vaginalis has been opened; on the right side 

 only the layers superficial to the Cremaster have been removed. (Testut.) 



The Scrotum is a cutaneous pouch which contains the testes and parts of the 

 spermatic cords. It is divided on its surface into two lateral portions by a ridge 

 or raphe, which is continued forward to the under surface of the penis, and backward, 

 along the middle line of the perineum to the anus. Of these two lateral portions 

 the left hangs lower than the right, to correspond with the greater length of the 

 left spermatic cord. Its external aspect varies under different circumstances: 

 thus, under the influence of warmth, and in old and debilitated persons, it becomes 

 elongated and flaccid; but, under the influence of cold, and in the young and 

 robust, it is short, corrugated, and closely applied to the testes. 



The scrotum consists of two layers, the integument and the dartos tunic. 



The Integument is very thin, of a brownish color, and generally thrown into 

 folds or rugae. It is provided with sebaceous follicles, the secretion of which has a 





