Block, SkipCaptcha, Automoderated users, edit, rollback
5,023
edits
Changes
Jump to navigation
Jump to search
mLine 1:
Line 1: − + + + + + + +
Reverted edits by AugustO (talk) to last revision by JaylesHowler
The '''bladder''' is a hollow organ in the lower abdomen which holds [[urine]]. It collects this from the [[kidney|kidneys]] through the ureters and passes it through the urethra to be excreted.
The '''bladder''', specifically called the '''urinary bladder''', is a hollow and muscular sac-like organ in the lower abdomen which stores [[urine]]. <ref>http://www.webmd.com/a-to-z-guides/the-bladder</ref> It collects urine from the [[kidney|kidneys]] through the ureters and passes it through the urethra to be excreted. While there are no exact measurements of the volume of the human bladder—doing so is generally seen as virtually impossible—most sources put its maximum volume at 600 to 800 cm<sup>3</sup>. <ref>http://hypertextbook.com/facts/2001/DanielShaw.shtmlM</ref>
== Structure ==
=== Muscles ===
The bladder wall contains a muscle called the [[detrusor muscle]]. One's bladder fills up when the detrusor muscle relaxes; when the bladder fills, it expands to accommodate urine. Urination is done by contracting the muscle. Contracting the detrusor muscle causes urination, because the action makes the bladder smaller, squeezing urine out. <ref>http://www.netdoctor.co.uk/womenshealth/sui/bladder_005149.htm</ref>
==See Also==
==See Also==