Chapter 26. The Urinary System
 
Practice Exam
 
You have 25 minutes to complete this exam. It includes fill in the blank, true/false, and multiple choice questions. Please note that fill in the blank answers may be more than one word.
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1 .       Functions of the urinary system include all of the following except



2 .       The urinary system interacts the most closely with components of the: 



3 .       The urinary system includes all but which of the following?  



4 .       Normal components of urine in a healthy person include:  



5 .       The position of the kidneys in the abdominal cavity is maintained, in part, by the: 



6 .       Kidneys are often difficult to see without dissection because they are surrounded by a layer of fat, which serves to expand for storage of additional urine once the bladder is full and acts to cool the kidneys from the friction induced temperature rise that occurs during active filtration 

 
 


7 .       Each kidney is protected and stabilized in location by the: 



8 .      

 

9 .       Urine is formed in the: 



10 .       Superficial anatomical characteristics of each kidney that can be observed by gross external examination include:  



11 .       Structurally, a kidney is: 



12 .      

 

13 .      

 

14 .       A glomerulus: 



15 .       Components of the renal corpuscle include:  



16 .       Which of the following is not true of nephrons?  



17 .       A nephron has two parts, and these are the: 



18 .       Each nephron empties into the: 



19 .       The distal convoluted tubule is responsible for active secretion of ions, acids, and other materials, selective reabsorption of sodium ions from the filtrate, and adjustment of the osmotic concentration and balance.  

 
 


20 .       The main homeostatic function that occurs as a result of the work of the Loop of Henle is:  



21 .       The kidneys receive what percentage of the total cardiac output? 



22 .       Each kidney ultimately receives blood from: 



23 .      

 

24 .       Together the macula densa, juxtaglomerular cells, and extraglomerular mesangial cells form the juxtaglomerular apparatus.  

 
 


25 .       The kidneys are innervated by the: 



26 .       Most of the nerve fibers involved in the innervation of the kidneys are: 



27 .       The known functions of the sympathetic innervation of the kidneys include all of the following except



28 .      

 

29 .       The ureters: 



30 .      

 

31 .       The parts of the urethra in males in correct order from the bladder to the exterior of the body are the prostaic urethra, penile urethra and the membraneous urethra.  

 
 


32 .       Transitional epithelium, which can tolerate cycles of distention and contraction without damage, is located in which of the following areas?  



33 .       The muscle responsible for compressing the urinary bladder and expelling the contents is the _______________.  



34 .       What is the significance of the vertically oriented slit-like, rather than rounded, openings of the entrances of the ureters into the bladder? 



35 .       In addition to the bladder, which other abdominopelvic cavity organ has an internal mucosa thrown into folds that disappear as the organ fills?  



36 .       Urine reaches the urinary bladder by: 



37 .       The process of urination is coordinated by the: 



38 .       Voluntary urination involves _______________.  



39 .       Increased levels of activity in the afferent fibers of the pelvic nerves cause all of the following except: 



40 .       Age-related changes in the urinary system include: 



41 .       Problems with the micturition reflex in older individuals include:  



42 .       A benign enlargement of the prostate affects urinary function in older men because: 



43 .       What is the health danger of a "floating kidney?" 



44 .       Function of juxtamedullary nephrons differs from that of cortical nephrons in that juxtamedullary nephrons have a greater blood supply than do cortical nephrons.  

 
 


45 .       Damage, disease, or irritation of the renal cortex would impair the function of which kidney structures?  



46 .       Damage to an afferent arteriole would cause which of the following problems in kidney function? 



47 .       By the third month of development, fetal kidneys begin to produce filtrate. How and why does this filtrate differ from that excreted by a postnatal kidney? 



48 .       Often women who have had children have difficulty in controlling the flow of urine when they sneeze, cough or laugh. This is because they may have had damage to the perianal region or the urinary sphincter may be damaged or stretched.  

 
 


49 .      

 

50 .       What is the anatomical reason that hitting a boxer in the lower back is considered an illegal move?  



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