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→Junction with the Bladder
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==Overview==
==Overview==
[[Image:ureterhistoanat.jpg|right|thumb|300px|<small><center>Histology section of a normal ureter (© RVC 2008)</center></small>]]
[[Image:ureterhistoanat.jpg|right|thumb|300px|<small><center>Histology section of a normal ureter (© RVC 2008)</center></small>]]
==Wall==
==Wall==
* It has a mucous membrane
* It has an internal mucosa layer
** It is formed from transitory epithelium
** It is formed from transitional epithelium
** Protects against urine
** Protects against urine
* Followed by a muscularis layer
* Followed by a muscularis layer
* And finally on the outside an adventitia
** This is well developed for peristalsis, though can enter into spasm on irritation
* And finally an external adventitia
==Junction with the Bladder==
==Junction with the Bladder==
* The ureter enters the bladder obliquely
* The ureter enters the bladder obliquely near the neck of the bladder
* Runs between the muscular layers and mucosa
* Runs between the muscular layers and mucosa
* This stops back flow when the bladder is full as increasing pressure in the [[Bladder - Anatomy & Physiology | bladder]] pushes the two layers together occluding the ends of the ureters.
* This stops back flow when the bladder is full as increasing pressure in the [[Urinary Bladder - Anatomy & Physiology|urinary bladder]]
* They open through 2 slits on a raised "hillock"
* They open through 2 slits on a raised "hillock"
Lumbar lymph nodes
Lumbar lymph nodes
==Revision==
{{Template:Learning
|flashcards = Use the [[Ureters - Renal Flash Cards - Anatomy & Physiology|flash card revision resource]] for this section to test yourself.
|dragster = [[Canine Urinary Radiographical Anatomy Resources (I & II)|Canine Intravenous Ureterogram Radiographic Anatomy (I)]]
}}
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[[Category:Lower Urinary Tract - Anatomy & Physiology]]