234 THE BIOLOGY OF THE ANIMAL 



To what extent may they be inflated ? Are they 

 directly connected with the lungs ? 



E. — The Urino-genital System. 



After the digestive organs have been removed, 

 there will be found in both sexes two elongated, 

 dark-red bodies lying on each side of the verte- 

 bral column. These are 



a. The kidneys. — What is their position with regard 

 to the large intestine ? To the spleen ? What is 

 their shape ? How long are they ? What is their 

 relation to the peritoneum ? 



On the surface of each kidney find a yellow- 

 ish band, 



h. The adrenal body. — What is its shape? How 

 much of the length of the kidney does it cover ? 

 Of the width ? How intimately is it connected 

 to the kidney ? Draw a kidney with its adrenal 

 body. 

 Leading from the kidney find a white tube, 



c. The ureter. — From what part of the kidney does 



it arise ? Is it straight or coiled ? What is its 

 length ? Into what does it lead ? Open the clo- 

 aca and endeavor to find the opening of the ure- 

 ter. In the male this duct carries the secretion 

 of the testes and is, hence, a urinogenital duct. 

 In such a specimen examine the lower end of the 

 duct for a dilated glandular portion, the vesicTila 

 seminalis. 



d. The bladder. — What is its position? What is its 



relation to the large intestine? Shape? Size? 

 Texture of its wall ? Is it directly connected with 

 the ureters? How is it connected with the clo- 



