454 APPENDIX. 



6. The penis (p. 262, and Figs. 111 and 113). Cut the skin 

 along the dorsum of the penis and reflect. Dissect the ligamentum 

 suspensorium penis. Then introduce a bristle into the urethra and 

 remove the integument from the whole penis and identify the corpora 

 cavernosa and corpus spongiosum and the urethra. 



7. Remove the fat at the side of the rectum and find the levator 

 ani muscle (p. 269, and Fig. 162, 11). Transect and reflect it. 

 The internal sphincter ani (p. 269, and Fig. 113, h). Find the 

 external opening of the anal gland (p. 239); slit and examine it. 



8. Dissect the ischiocavernosus (p. 269) and bulbocavernosus 

 (p. 271) muscles (Fig. 113), and find the bulbus of the corpus caver- 

 nosum beneath the former. Cut it free from the ischial ramus. 



9. Clean the muscles from the pelvis on the side from which the 

 cms penis is removed, and remove with bone forceps the body of the 

 pubis and the ramus of the ischium. Then trace the neck of the 

 bladder to its junction with the vasa deferentia, and the urethra from 

 that point to the external opening (Fig. 1 1 1). Study the compressor 

 urethrae muscle (p. 271, and Fig. 113, n). Find Cowper's glands 

 (p. 261) and the prostate gland (Fig. 1 13). Dissect the other muscles 

 of the urogenital organs (pp. 268 to 273, and Fig. 113). 



10. Slit the urethra on one side throughout its length and find 

 the veru montanum (p. 261); the openings of the vasa deferentia 

 (p. 261), by bristles passed into the urethra from them; the openings 

 of the prostate gland and the openings of Cowper's glands. 



11. Study the structure of the penis (p. 262) by making a cross- 

 section, and that of the glans by making a longitudinal section. 

 Note, if possible, the os penis. 



C. Female Urogenital Organs (p. 263, and Fig. 112). The kidney 

 and its ducts and the bladder are like those of the male (p. 255), 

 except the neck of the bladder, which will be seen in dissecting the 

 uterus and vagina. 



a. Without cutting anything examine 



1. The ovaries (p. 264); the ligaments of the ovary (p. 264, and 

 Fig. 112). 



2. The uterine tube. Its ostium (p. 264). 



3. The body of the uterus (p. 266) as far as exposed. 



4. The cornu of the uterus. 



5. The broad and round ligaments of the uterus (p. 266). 



6. Slit open one Fallopian tube, cornu, and body of the uterus 

 as far as the junction of the divisions of the body of the uterus. 



b. Remove the ventral wall of the pelvis on one side only and 

 find the vagina and urogenital sinus (p. 267). The levator ani 

 muscle (p. 269, and Fig. 162, n) must be cut and reflected. 



1. Note the constrictor vestibuli, caudovaginalis, and urethralis 

 muscles (p. 272, and Fig. 114). 



2. Introduce a probe from the uterus into the vagina and feel 

 with the finger for the hard cervix uteri (p. 266). Then open the 

 vagina on the side, but do not cut the os uteri (p. 266). 



