Term
|
Definition
Cortex
Pons
Sympathetics
Parasympathetics |
|
|
Term
| Bladder innervation: cortex |
|
Definition
medial frontal lobe
voluntary control of micturition |
|
|
Term
| Bladder innervation: pons |
|
Definition
pontine mesencephalic reticular formation
urinary reflex control center |
|
|
Term
| Bladder innervation: sympathetics |
|
Definition
T11-L2
inhibits micturition |
|
|
Term
| Bladder innervation: parasympathetics |
|
Definition
S4-5
stimulates micturition |
|
|
Term
| Bladder control in babies = |
|
Definition
|
|
Term
| Reflexive bladder control requires... (3) |
|
Definition
afferents from bladder
intact cord (T11-L2, S2-4)
Efferents from sympathetic/parasympathetic |
|
|
Term
| Actions of sympathetic output on bladder control |
|
Definition
inhibit detrusor
contract internal sphincter |
|
|
Term
| Actions of parasympathetic output on bladder control |
|
Definition
stimulate detrusor
relax internal sphincter |
|
|
Term
| Voluntary bladder control requires.. (3) |
|
Definition
medial frontal cortex
pons reflex center
sacral spinal cord |
|
|
Term
| Voluntary bladder control (inhibiting micturition): |
|
Definition
cortex inhibits pons urination center until bladder is full
if bladder is full at inappropriate time to urinate, cortex stimulates LMNs to contract levator ani to compress bladder neck |
|
|
Term
| Voluntary bladder control (bladder emptying): |
|
Definition
cortex disinhibits pons
pons inhibits sympathetics/somatic (pelvic floor), stimulates parasympathetics |
|
|
Term
| Disruption of bladder control caused by damage to... (2) |
|
Definition
cortical micturition center
connection between pontine/sacral micturition centers |
|
|
Term
| Lesion above sacral cord segments >> |
|
Definition
| Reflexive/Neurogenic bladder (UMNL) |
|
|
Term
| Lesion at sacral cord/cauda equina >> |
|
Definition
|
|
Term
| Reflexive/Neurogenic bladder s/sx (4) |
|
Definition
contraction of bladder with small volumes of urine
excessive pressure upon contraction
incr tone (spasticity) of sphincter
dyssynergia btwn detrusor/sphincter |
|
|
Term
|
Definition
lack of detrusor mm contraction
hypotonic sphincter |
|
|
