1 8 DISSECTION OF THE CAT 



cavity or hihis. The kidneys lie outside of the 

 peritoneum. 



If the kidney be cut horizontally through its 

 long axis it will be found to consist of two layers, 

 the cortical and the medullary. The outer, corti- 

 cal portion is of lighter color, the medullary por- 

 tion is darker and is arranged in a conical mass or 

 pyramid which projects into the cavity or pelvis 

 of the kidney. 



2. The Ureter is the tube which passes backward 

 from the hilus of the kidney to the dorsal wall of 

 the bladder. 



3. The Bladder is a muscular sac lying near the 

 symphysis pubis. It receives the ureters obliquely 

 in its dorsal surface and opens to the exterior 

 through the urethra. 



The Adrenal Bodies are two 'Small whitish bodies 

 which lie internal to the anterior portion of each 

 kidney. They are imbedded in fat. 



D. Reproductive System. 



// will be necessary to cut away the symphysis 

 pubis in order to trace fully the reproductive 

 system. 



MALE. 



i. The Testes are the essential male organs cor- 

 responding to the ovaries of the female. They 

 are situated in a pouch, the scrotal sac, lying pos- 

 terior to the symphysis pubis. If the scrotal sac 



