Bladder

Bladder
1. Human urinary system: 2. Kidney, 3. Renal pelvis, 4. Ureter, 5. Bladder, 6. Urethra. (Left side with frontal section)
7. Adrenal gland
Vessels: 8. Renal artery and vein, 9. Inferior vena cava, 10. Abdominal aorta, 11. Common iliac artery and vein
With transparency: 12. Liver, 13. Large intestine, 14. Pelvis
Details
PrecursorUrogenital sinus
SystemUrinary system
ArterySuperior vesical artery
inferior vesical artery
umbilical artery
vaginal artery, internal pudendal artery, deep external pudendal artery
VeinVesical venous plexus
NerveVesical nervous plexus, pudendal nerve
LymphPreaortic lymph nodes
Identifiers
Latinvesica urinaria
MeSHD001743
TA98A08.3.01.001
TA23401
FMA15900
Anatomical terminology

The bladder is a hollow organ in humans and other vertebrates that stores urine from the kidneys. In placental mammals, urine enters the bladder via the ureters and exits via the urethra during urination.[1][2] In humans, the bladder is a distensible organ that sits on the pelvic floor. The typical adult human bladder will hold between 300 and 500 ml (10 and 17 fl oz) before the urge to empty occurs, but can hold considerably more.[3][4]

The Latin phrase for "urinary bladder" is vesica urinaria, and the term vesical or prefix vesico- appear in connection with associated structures such as vesical veins. The modern Latin word for "bladder" – cystis – appears in associated terms such as cystitis (inflammation of the bladder).

  1. ^ Marvalee H. Wake (15 September 1992). Hyman's Comparative Vertebrate Anatomy. University of Chicago Press. p. 583. ISBN 978-0-226-87013-7. Retrieved 6 May 2013.
  2. ^ Brading, Alison F. (January 1999). "The physiology of the mammalian urinary outflow tract". Experimental Physiology. 84 (1): 215–221. doi:10.1111/j.1469-445X.1999.tb00084.x. ISSN 0958-0670. PMID 10081719.
  3. ^ Boron, Walter F.; Boulpaep, Emile L. (2016). Medical Physiology. Elsevier Health Sciences. p. 738. ISBN 9781455733286. Retrieved 1 June 2016.
  4. ^ Walker-Smith, John; Murch, Simon (1999). Cardozo, Linda (ed.). Diseases of the Small Intestine in Childhood (4 ed.). CRC Press. p. 16. ISBN 9781901865059. Retrieved 1 June 2016.