Difference between revisions of "Snake Urinary System"

Latest revision as of 16:56, 4 January 2023

The urinary system of snakes consists of paired lobulated kidneys and ureters that empty into the dorsal urodeum.

Kidney

Paired kidneys are located in the dorsal caudal coelomic cavity with the right kidney cranial to the left. They are elongated, lobulated and somewhat triangular in cross section. All reptiles have metanephric kidneys that are simpler than the mammalian counterpart. There are decreased number of glomeruli (some species are aglomerular) and there is no loop of Henle. They may have one or more renal arteries and in some species, there is a separate branch of the ureter draining each lobule. There may be a sexual segment in the caudal kidney that follows up the distal part of each tubule and empties into a collecting duct. Since no urinary bladder is present, urine is not stored and ureters empty directy into the cloaca.

For information on renal diseases, see snake renal disease.

Uric acid

Uric acid is the main form of nitrogenous waste with lesser amounts of ammonia and urea depending on the species, the natural environment and degree of water conservation required. Uric acid is excreted by tubular secretion rather than urea by glomerular filtration

Ureters and Cloaca

Snakes have no bladder. The ureter enters the urodeum at a urogenital papilla and urine refluxes into the colon for fluid conservation.

Snake Urinary System Learning Resources
Full Text Articles Full text articles available from CAB Abstract (CABI log in required)	Reptile and amphibian renal systems. Wyneken, J.; Mader, D.; Association of Reptilian and Amphibian Veterinarians, Chester Heights, USA, Proceedings of the Association of Reptilian and Amphibian Veterinarians, 14th Annual Conference, New Orleans, Louisiana, USA, 14-18 April, 2007, 2007, pp 62-68, 13 ref.

Reference

Mader, D.R. (2005). Reptile Medicine and Surgery. Saunders. pp. 49. ISBN 072169327X

Webinars

Failed to load RSS feed from https://www.thewebinarvet.com/urogenital-and-reproduction/webinars/feed: Error parsing XML for RSS

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+[[Image:Burmese_python_kidneys2.jpg|200px|thumb|right|'''Kidneys of a [[Burmese Python|Burmese python]]''' (Copyright © RVC)]]
+The urinary system of snakes consists of paired lobulated kidneys and ureters that empty into the dorsal urodeum.
+==Kidney==
+Paired kidneys are located in the dorsal caudal coelomic cavity with the right kidney cranial to the left. They are elongated, lobulated and somewhat triangular in cross section.  All reptiles have metanephric kidneys that are simpler than the mammalian counterpart. There are decreased number of glomeruli (some species are aglomerular) and there is no loop of Henle. They may have one or more renal arteries and in some species, there is a separate branch of the ureter draining each lobule. There may be a sexual segment in the caudal kidney that follows up the distal part of each tubule and empties into a collecting duct.  Since no urinary bladder is present, urine is not stored and ureters empty directy into the [[Cloaca|cloaca]].
+* '''For information on renal diseases, see''' [[Lizard and Snake Renal Disease|snake renal disease]].
+==Uric acid==
+Uric acid is the main form of nitrogenous waste with lesser amounts of ammonia and urea depending on the species, the natural environment and degree of water conservation required. Uric acid is [[Lizard and Snake Excretion|excreted]] by tubular secretion rather than urea by glomerular filtration
+==Ureters and Cloaca==
+Snakes have no bladder.  The ureter enters the urodeum at a urogenital papilla and urine refluxes into the [[Snake Digestive System|colon]] for fluid conservation.
+{{Learning
+|full text = [http://www.cabi.org/cabdirect/FullTextPDF/2009/20093069451.pdf ''' Reptile and amphibian renal systems.''' Wyneken, J.; Mader, D.; Association of Reptilian and Amphibian Veterinarians, Chester Heights, USA, Proceedings of the Association of Reptilian and Amphibian Veterinarians, 14th Annual Conference, New Orleans, Louisiana, USA, 14-18 April, 2007, 2007, pp 62-68, 13 ref.]
+}}
+==Reference==
+Mader, D.R. (2005). Reptile Medicine and Surgery. Saunders. pp. 49. ISBN 072169327X
 {{review}}
-[[Image:Burmese_python_kidneys2.jpg|200px|thumb|right|'''Kidneys of a [[Burmese Python|Burmese python]]''' ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved]]
-The urinary system of snakes consists of paired lobulated [[Kidney - Anatomy & Physiology|kidneys]] and ureters that empty into the dorsal urodeum.
-*'''Kidney''' - Paired kidneys are located in the dorsal caudal coelomic cavity with the right kidney cranial to the left. They are elongated, lobulated and somewhat triangular in cross section.  All reptiles have metanephric kidneys that are simpler than the mammalian counterpart. There are decreased number of glomeruli (some species are aglomerular) and there is no loop of Henle. They may have one or more renal arteries, and in some [[:Category:Snake Species|species]], there is a separate branch of the ureter draining each lobule. There may be a sexual segment in the caudal kidney that follows up the distal part of each tubule and empties into a collecting duct.
+==Webinars==
+<rss max="10" highlight="none">https://www.thewebinarvet.com/urogenital-and-reproduction/webinars/feed</rss>
-*'''Ureters and [[Cloaca|cloaca]]''' - Snakes have no bladder.  The ureter enters the urodeum at a urogenital papilla and urine refluxes into the [[Snake Digestive System|colon]] for fluid conservation.
-**For more information on excretion in reptiles, [[Lizard and Snake Excretion|see here]]
 [[Category:Snake_Anatomy]]