Flashcards in Ureter an Bladder Function Deck (16):
Where is the longitudinal layer and circular layer of muscle found in the ureter respectively?
What causes the peristaltic movements in the ureter?
Interstitial cells of Cajal
Reflux in ureter only
Reflux in ureter and renal pelvis w/o distention
Reflux into ureter and renal pelvis causing very mild hydronephrosis
Reflux causing moderate hydronephrosis
Reflux causing severe hydronephrosis and twisting of ureter
What is found on top of the transitional epithelial umbrella cells?
A glycosaminoglycan layer (for protection)
Three muscles and their types in the bladder?
Detrusor: smooth muscle
Internal urethral sphincter: smooth muscle
External urethral sphincter: skeletal muscle
What does the SNS innervate?
Internal sphincter/detrusor/trigone: stimulates alpha to cause contraction and beta receptors in the bladder to cause detrusor relaxation
What does the somatic nervous system do?
Causes voluntary contraction of external sphincter to not urinate
What does PSNS do?
Innervates detrusor to contract to urinate
Where do sympathetic come from?
Where do PSNS come from?
Internal signaling of beta receptors?
cAMP to inhibit contraction