Incontinence and Pelvic Organ Prolapse Flashcards
What percentage of americam n women can be affected by icnotinence?
as many as 30-40%
What are some factors that influence developing incontinence?
gender age hormonal status previous vaginal delivery and birthin trauma CT differences neurologic conditions medications
What’s the most important muscle in the pelvus floor?
levator ani
Where are the beta adrenergic receptors in the bladder?
bladder dome
Where are the alpha-1 receptors?
trigone
urethral smooth muscle
Where are the muscarinic receptors?
in the deep layer throughout.
THe internal sphincter is smooth muscle under involuntary control of what receptors?
alpha 1
The external sphincter is skeletal muscle supplied by what nerve?
somatic pudendal nerve - under voluntary control
The function of the urethra is affected by estrogen because….
the blood vessels assist the layer sin coming together to close the urethra and vasculature decreases with decreasing estrogen levels
this is why menopause is a factor
Sympathetics are involved with hwat bladder function in general terms?
storage of urine - bladder dome relaxation
WHere do these sympathetics come from?
T10-L2 to inferior mesenteric ganglion and palvic plexus. then hypogastric and pelvic nerves to the bladder
Parasympathetics are involved with what bladder funcion?
actually peeing
Detrussor muscle will do what when exposed to cholinergic muscuarinic receptor agonists?
contract - make you pee
What are the muscarinic receptor subtypes in bladder smooth muscl
mainly M2 and M3
Activating M2 receptors does what?
inhibits bladder relaxation
Activating M3 receptors does what?
promotes bladder contraction (so M2 and M3 promote the same result by different means)
What are the beta adrenergic receptors in the detrusor?
B2 and B3 (again, promote relaxation)
Where is the micturition center?
pons
What are some major drgus taht influence bladder fucntion?
antidepressants/antipsychotics
sedatives
diuretics - increase
caffeine - increase
anticholinergics - urinary retention or used to treat incontinence
alcohol - sedation and bladder irritating
narcotis
What are the three main type sof incontinence?
stress
urge
mixed