25. Urinary System

What are the four main organs of the urinary system?

Fill in the blanks for each of the following statements:

a. The process by which urine is eliminated is called _____ , and it is mediated by reflexes involving the_____​nervous system.

b. The mucosa of the organs of the urinary tract is lined with _____epithelium.

c. The three layers of smooth muscle in the urinary bladder are known as the_____muscle.

d. The female urethra provides a passageway for , whereas the male urethra provides a passageway for_____and_____ .

Explain why urinary tract infections, which involve the urethra and urinary bladder, are much more common in females than males.