806 DIBECTIONS FOE LABORATORY WORK 



globus major (caput epididymis). Make h.p. sketch (312) of a segment 

 of the wall, showing the character of the epithelium (with its groups of 

 ciliated and non-ciliated columnar cells), the basement membrane, and 

 the muscular tunica propria. 



(4) THE EPIDIDYMIS. Make l.p. sketch (313) of a stained sec- 

 tion of this extremely convoluted duct; and a h.p. sketch (314) of a 

 segment of the wall, noting the character of the epithelium, the base- 

 ment membrane, and the muscular tunica propria. How can the duct 

 of the corpus epididymis be distinguished in section from the ductuli 

 efferentes of the caput epididymis? 



(5) THE DUCTUS DEFERENS (Vas deferens}. Study l.p. a stained 

 section of the ductus deferens. Note the tunica mucosa, the lamina pro- 

 pria mucosa? and the tunica muscularis. Sketch (315). Make h.p. 

 sketch (316) through the mucosa. How does the epithelial lining 

 differ in the upper, middle and lower portions? How does the tunica 

 muscularis of the lower portion differ from that of the remainder of the 

 duct? Difference between tunica mucosa and tunica muscularis of the 

 ureter and the ductus deferens? 



(6) THE SEMINAL VESICLES. Sketch l.p. (317) a segment of the 

 entire wall; and h.p. (318) a small extent of the mucosa. 



(7) THE EJACULATORY DUCTS. Sketch l.p. (319) a segment of the 

 complete wall; and h.p. (320) a portion of the mucosa. 



(C) THE SPERMATIC CORD. 



Study l.p. a stained transverse section of the spermatic cord. Note 

 the following constituents: a, fibrous stroma; b, ductus deferens; c, ex- 

 ternal cremaster (striped) muscle; d, internal cremaster (smooth) mus- 

 cle; e, spermatic artery and veins, including f, the pampiniform plexus. 

 Sketch (321). 



(D) THE SCROTUM. 



Study l.p. a stained section of the wall of the scrotum. Note rela- 

 tively abundant pigmented cells in stratum germinativum of epidermis; 

 loose corium (derma) with a considerable number of elastic fibers and 

 smooth muscle cells (constituting the dartos). In what respects does 

 the skin of the scrotum differ from ordinary integument? Sketch (322). 



(E) THE GLANDS ASSOCIATED WITH THE MALE GENITAL 



SYSTEM. 



(1) THE PROSTATE GLAND. Study l.p. a stained section of the 

 human prostate. Sketch (323) a small area showing several alveoli 



