Chapter 35 Flashcards
bladder function
store and empty urine
what is the urine flow?
kidneys -> ureters -> bladder -> sphincter -> urethra
parasympathetic system promotes
bladder emptying
sympathetic system promotes
bladder filling
parasympathetic NS involves issues with
relaxation of internal sphincter
sympathetic NS involves issues with
contraction of internal sphincter
process of urine elimantion
- detrusor muscle contracts to push urine out (sometimes abdominal muscles may be used)
- internal sphincter relaxes
- external sphincter relaxes
urinary obstruction with
retention or stasis of urine
urinary incontinence with
involuntary loss of urine
what are the causes of altered bladder function?
- structural changes in the bladder, urethra or surrounding organs
- impairment of neurological control of bladder function (neurogenic bladder)
obstruction and stasis is classified by
location, cause, duration and degree
obstruction can be in the
bladder neck, urethra, external urethreal meatus, pelvic organ prolapse, prostate
what happens in the early stage of obstruction/stasis?
hypertrophy, spasm, incontinence, urgency, and frequency
what happens in the compensatory stage?
further hypertrophy, increased pressure to overcome resistance but becomes ineffective.
what happens in decompensatory stage?
compensation is o longer effective. pronounced symptoms and overstretched bladder and infections