DIRECTIONS FOR LABORATORY WORK 807 



and the abundant fibre-muscular stroma. Contents of the alveoli ? 

 Make h.p. sketch (324) of a small extent of the mucosa. Significance 

 of the alveolar content? 



(2) THE BULBO-URETHRAL GLANDS (Cowper's glands}. Make h.p. 

 sketch (325) of several adjacent alveoli and included fibro-muscular 

 stroma. Character of the muscle content? Sketch h.p. (326) a portion 

 of the alveolar lining. 



(F) THE PENIS (Phallus). 



(1) Study a stained transverse section of the human penis, through 

 its middle portion. Note: a, corpus spongiosum (corpus cavernosum 

 uretlme) with the urethra; b, urethral glands (glands of Littre) ; c, the 

 two corpora cavernosa (penis) ; d, the enveloping tunica albuginea, and 

 c, the peripheral cutaneous envelope. Sketch (327). Sketch h.p.: a, 

 the lining of the urethra including a urethral gland (328) ; b, a small 

 area of erectile tissue from one of the corpora (329) ; and e, a helicine 

 artery (330). How does the epithelium of the urethra differ in its sev- 

 eral segments, namely the prostatic, the membraneous, the penile, and 

 the glans (fossa navicularis) portions? 



Sketch l.p. (331) portion of a preputial gland from a section through 

 the corona. Location and significance of Tyson's glands? Note char- 

 acter of the skin of the glans penis. 



Trace the course of the blood through the penis in the flaccid, and 

 in the erect condition. Nerve supply and nerve end-organs? 



XVIII. THE FEMALE ORGANS OF REPRODUCTION 



(Female Genital System) 



( A ) THE OVARY ( Ovarium ) . 



(1) Study l.p. and h.p. a stained section of the ovary of a full-term 

 fetus or young infant. Note : a, the peripheral 'germinal epithelium', 

 with its larger spherical primordial germ cells (ova) ; b, egg tubes of 

 Pflueger : c, 'egg nests' ; and d, a typical primitive ovarian follicle with 

 its central ovum (primary ob'cyte) and its enveloping mantle layer. 

 Sketch each under the h.p. (332 a, b, c and d). Derivation of the 

 ovarian germ cells? 



(2) Study l.p. a stained section of the ovary of an adult. Note: a, 

 the enveloping peritoneal layer ('germinal epithelium') ; b, the periph- 

 eral cortex with its ovarian follicles and the superficial tunica albuginea; 



