Peeing Flashcards
What is micturition?
the process of urine excretion from the urinary bladder
What type of autonomic control is the passing of urine under?
parasympathetic
What detects the filling of the bladder?
stretch receptors
Describe the pathway of bladder afferents?
ascend in the spinal cord to the pontine micturition centre and cerebrum
What effects do efferent signals have on the bladder if it is a good time to pee?
relax internal urethral sphincter
efferent signals excite the detrusor muscle
What form the upper corners of the trigone?
the ureters
Which wall of the baldder do the ureters empty into?
the posterior wall
Which urethral sphincter is under voluntary control?
the external urethral sphincter
Which urethral sphincter is under involuntary control?
internal urethral sphincter
Which nerve supplies the external uretheral sphincter?
pedundal nerve