Urinary System II

Question 1

ureters function

Answer 1

• tubular structures

- transport the urine formed in kidney to urinary bladder

Question 2

ureter location

Answer 2

• extend from renal pelvis to bladder

- retroperitoneal

Question 3

ureter structure: mucosa layer composition

Answer 3

• transitional epithelium

- secretes a protective mucous

Question 4

ureter structure: submucosa layer composition

Answer 4

-nerves and blood vessels

Question 5

ureter structure: muscularis layer composition

Answer 5

• smooth muscle

- peristaltic waves help to move urine

Question 6

ureter structure: serosa layer composition

Answer 6

-fibrous CT coat

Question 7

urinary bladder location

Answer 7

• posterior to pubic bone
• anterior to rectum
• inferior to peritoneum

Question 8

urinary bladder extent

Answer 8

• empty bladder: lies within pelvic cavity

- full bladder: lies in pelvis & may reach umbilicus level

Question 9

urinary bladder: mucosa layer composition

Answer 9

• innermost layer
• contains folds(rugae) which allow bladder to stretch and expand
• lined w/ transitional epithelium

Question 10

urinary bladder: submucosa layer composition

Answer 10

• supports mucosa

- contains nerves & blood vessels

Question 11

urinary bladder: muscularis layer composition

Answer 11

• smooth muscle

- detrusor muscle

Question 12

urinary bladder: serosa layer composition

Answer 12

-CT

Question 13

urinary bladder function

Answer 13

-storage & expulsion of urine

Question 14

urethra function

Answer 14

• tubular structure

- transports urine from bladder to outside of body

Question 15

urethra location

Answer 15

• begins at neck of bladder

- ends at urethra orifice

Question 16

urethra structure: female

Answer 16

• serves urinary system only
• approx. 3 cm long
• orifice located btwn labii minor
• orifice is anterior to vaginal orifice

Question 17

urethra structure: male

Answer 17

• serves urinary and reproductive system
• approx 20 cm long
• urethral orifice located at end of penis

Question 18

urethra male regions: prostatic urethra

Answer 18

• passes through prostate

- receives secretion from the prostate & ejaculatory duct

Question 19

urethra male regions: membranous urethra

Answer 19

-passes through urogenital diaphragm (made of skeletal muscle)

Question 20

urethra male regions: penile urethra

Answer 20

• located within penis

- ennds at urethral orifice

Question 21

urethra internal urethral sphincter

Answer 21

• involuntary

- smooth muscle

Question 22

urethra external urethral sphincter

Answer 22

• voluntary

- skeletal muscle

Question 23

micturition

Answer 23

• reflex action that expels urine from urinary bladder
• involves both voluntary & involuntary responses
  
  • ->parasympathetic control
  • ->response to stretch receptors in walls of bladder