The graceful muscle mass lining the ureter partitions continually tighten and loosen up through a process called peristalsis to pressure urine away from the kidneys and down to the bladder. Modest quantities of urine are introduced into the bladder every single ten–fifteen seconds. Principal bones in the human body. Digestive https://thcafloweronline27788.bligblogging.com/34649112/an-unbiased-view-of-health-lifespan