Voiding Flashcards
What characteristic allows the detrusor to accommodate (inc. volume) without an increase in pressure?
A. Competence
B. Compliance
B
In which portion of the ureter stones would tend to lodge and cause obstruction
a. Uterovesical junction
b. Uteropelvic junction
c. Crossing over iliac
d. Crossing over psoas
A
All may be found in IVP of kidney with hydronephrosis EXCEPT
a. Flattening of concavity of calyx
b. Reversal of convexity of renal papilla
c. Atrophy of renal pelvis
d. Enlarged calyx
C
Majority of the stones of the urinary tract can be visualized radiographically. This is because of the fact that these stones are made of
a. Uric acid crystals
b. Calcium oxalates
c. Magnesium crystals
d. A&B
e. A,B&C
B
Bladder is full and you are 20m away from the toilet. what is activated?
a. Pelvic nerve inhibition
b. Cortical stimulation
c. Rostral pons
d. Pudendal nerve
B
Richly folded epithelium and spongy tissue within the submucosa contribute to this phenomenon that promotes continence among females?
a. Reflex resting pressure of urethra
b. Urethrovesical angulation
c. Intrapelvic position of urethra
d. Urethral seal effect
D
Bladder compliance is essential because
a. Allows slow rise in detrusor pressure as volume rises
b. Maintains pressure despite increase in volume
c. Allows complete emptying of bladder during voiding
d. Prevents reflux of uring to the ureter
A
A 1.5 mm renal stone that has migrated down the renal pelvis can most likely be radiologically found to be impacted at which area?
A. L2 level
B. area of the urinary bladder
C. at the pelvic brim
D. at the level of the coccyx
B
Normally when the bladder is distended, there is no reflux of urine from the urinary bladder to the ureters because of
A. the presence of a sphincter in the ureteral orifice
B. the presence of a detrusor muscle in the bladder
C. the oblique entry of the ureter into the substance of the bladder wall
D. the insertion of the ureter into the upper part of the bladder wall
E. the tonic contraction of the ureter itself
C
Stones tend to lodge and cause obstruction in the following portions of the ureter EXCEPT in the:
A. ureteropelvic junction
B. ureterovesical junction
C. region of bifurcation of the illiac vessels
D. midportion of the ureter
D
The synctial arrangement of the detrusor muscle is important for
A. maintaining compliance during the filling phase
B. sustained and complete emptying during voiding
C. prevention of urine from going back to the kidneys
D. prevention of urine leakage during the storage phase
B
The behavior of the lower of the lower urinary tract organsduring normal voiding
A. Detrusor relaxation coupled with sphincter relaxation
B. Detrusor contraction coupled with sphincter contraction
C. Detrusor contraction coupled with sphincter relaxation
D. Detrusor relaxation coupled with sphincter contraction
C
During the storage phase , the following event occurs
A. detrusor muscle contracts
B. hyposgastric nerve stimulates the internal urethral sphincter
C. the cerebral cortex sends inhibitory impulses to the pons
D. trigonal muscle contracts
C
During the normal voiding phase, the following events occur
A. pelvic floor muscles contracts
B. Pudendal nerve stimulates rhabdomyosphincter
C. pelvic nerve sends signals to the detrusor
D. hypogastric nerve relaxes trigonal muscles
D
During the filling phase the inherent action of the suprasacral spinal cord prevails manifesting as
A. Internal rethral sphincter is inhibited by the hypogastric nerve
B. Detrusor contraction is inhibited
C.pudendal nerve stimulation of the pelvic floor is inhibited
D. pelvic nerve stimulates the detrusor
C
