1. Which human excretory structure aids in the maintenance of normal body temperature?
    (1.) sweat gland  (2.) nephron  (3.) ureter  (4.) urinary bladder
 

2. What is the principal function of structure X represented in the diagram?  (1.) filtration of cellular wastes from the blood  (2.) storage of urine  (3.) secretion of hormones  (4.) transport of urine out of the body

3.   As urine is excreted, muscle contractions of the urinary bladder will cause the urine to pass into the  (1.) kidney  (2.) ureter  (3.) nephron  (4.) urethra
 
 

4.   What is the major function of the blood vessel in the diagram?  (1.) releasing carbon dioxide into the sweat gland  (2.)  filtering starch out of the sweat gland  (3.) transporting wastes to the sweat gland  (4.)  transporting oxygen away from the sweat gland

5.    In the diagram of the human urinary system, which letter indicates a structure responsible for filtering urea out of the bloodstream?   (1.) A  (2.) B  (3.) C  (4.) D

6.  Select the structure that does not belong to the same system as the other structures in the list.
     (1.) ureter  (2.) esophagus  (3.) nephron  (4.) urethra  (5.) kidney
 

7.  Which letter indicates the location of the nephrons in the diagram?  (1.) A  (2.) B  (3.) C (4.) D

 

8.   Which letter in the diagram below indicates the organ that is involved in the deamination of amino acids (conversion of excess amino acids to urea)?  (1.) A  (2.) B  (3.) C  (4.) D

Correctly complete the following statements.

9.    A buildup of uric acid crystals around a joint can lead to a condition called ______________.

10.  Urea which is excreted by mammals and uric acid which is excreted by insects and birds are less toxic nitrogenous waste products than __________________.

Identify the lettered organs in the human excretory diagram below.

Now hopefully some correct answers!   Mail any comments about suspected errors to jbuckley@ekcsk12.org

1.    1

2.    4

3.    4

4.    3

5.    1

6.    2

7.    1

8.    2

9.    gout

10.  ammonia

A -- kidney

B -- ureter

C -- urinary bladder

D -- urethra