62 



bundles? Recognize blood vessels, nerves (and ganglia ?). Study 

 well the epithelium and compare it with the epithelium of the ureter. 



136. Bladder, — collapsed. . ; collodion ; 

 sections }i. Stain with hematoxylin and . This 

 preparation is to be compared with 135 for (a) the epithelium, its 

 differences in a distended and contracted condition, and (d) the lay- 

 ers of the muscular coat. 



URETHRA. 



137. Urethra — female (and vagina). Transection. 



collodion ; sections yu. Stain with hematoxylin 



and picrofuchsin. 



Study the preparation carefully, noting the coats, the character 

 of the lining epithelium, the layers composing the muscular coat, 

 and the direction of the fibers ; compare with the condition in the 

 ureter and bladder. Are glands present ? Note the blood vessels 

 of the mucosa. 



138. Urethra — male. Transection. 



collodion ; sections /x. Stain with hematoxylin and picro- 



fuchsin. 



Compare this preparation with 137 and note differences. What 

 is the character of the epithelium and therefore what part of the 

 urethra is it ? Are the muscular layers well defined ? 



