40 LABORATORY OUTLINES FOR EMBRYOLOGY 



to the outside of the body. This is the urethra. With- 

 out removing any of the liver, examine it. Of how many 

 lobes it is composed? Size? Position? Dorsal to the 

 liver and a little posterior to it is the much coiled in- 

 testine. Dorsal to the bladder and ventral to the ureters 

 are two fine tubes, one on either side, which unite 

 dorsal to the posterior end of the bladder. These 

 tubes are the Fallopian tubes in the female or the vas 

 deferens in the male. The posterior part of the Fallopian 

 tubes forms the horns of the uterus, which unite near 

 the vagina. The point of union of the vas deferens 

 forms the sinus pocularis, or male uterus. Trace the 

 sex ducts until they open to the exterior- Near the 

 anterior end of the sex ducts and a little ventral to 

 them are the sex glands, the ovaries if female, or the 

 testes if male. Dorsal to the sex glands and toward the 

 median line of the body are the remains of the Wolffian 

 bodies. By lifting the intestine and the posterior part 

 of the liver, a part of the comparatively large kidneys 

 may be seen. Trace the ureters to the kidneys. In the 

 median line of the body, extending between the sex ducts 

 and posteriorly dorsal to the urethra, is the posterior end 

 of the intestine, the descending colon and the rectum. 



Draw the dissection and label all the parts. 



Trace the umbilical vein through the liver by carefully 

 dissecting away a small part of the liver at a time. Im- 

 mediately dorsal to the anterior part of the liver is the 

 stomach. What is its shape? Position? The small 

 bladder found in the liver is the gall bladder. The duct 

 leading from the gall bladder is the cystic duct. This 



