urinary

Question 1

List 2 factors that might contribute to urinary retention in elderly men.

Answer 1

Both loss of bladder tone with age and an increase in size of the prostate can contribute to urinary retention in elderly men.

Question 2

Name the 3 steps of embryonic kidneys in the order that they develop.

Answer 2

The 3 sets of embryonic kidneys in the order that they develop are the pronephros, mesonephros a.nd metanephros

Question 3

how does the detrusor respond to increased firing of the parasympathetic fibers that innervate it? how does this affect the internal urethral sphincter?

Answer 3

The setrusor contracts in response to increased firing of parasympathetic nerves. The internal urethral sphincter opens.

Question 4

name 3 regions of the male urethra.

Answer 4

The prostatic urethra, the intermediate part of the urethra, and the spongy urethra are the three regions of the male urethra

Question 5

what is the trigone of the bladder, and which landmarks define its borders.

Answer 5

the trigone is a smooth triangular region at the base of the bladder. Its borders are defined by the openings for the ureters and the urethra.

Question 6

A kidney stone blocking a ureter would interfere with urine flow to which organ?Why would pain occur in waves.

Answer 6

A kidney stone blocking the ureter would interfer with urine flow to the bladder. The pain would occur in waves that coincide with the peristalic contractions of the smooth muscle of the ureter.