by 2 days after implantation , infusion of saline ( 200 microliter/min ) in the bladder reliably resulted in a low base-line pressure ( bp ) followed by a transient increase in bladder pressure , an opening of the sphincter ( bladder opening pressure , bop ) corresponding to expression of urine ( volume of urination , v ) , then a further rise in pressure ( peak pressure , pp ) and a subsequent return to base line .
C0005682
bladder
C0042034
urination