Difference between revisions of "Urethra - Anatomy & Physiology"
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==Female== | ==Female== | ||
| − | * Empties at the external urethral orifice | + | * Empties at the external urethral orifice on the ventral wall of the vagina |
| − | + | * This is often at the vestibulo vaginal junction | |
| − | * | ||
* Only urine passes through it | * Only urine passes through it | ||
* The urethral submucosa has a network of veins which may contribute to continence by forming a kind of erectile tissue. | * The urethral submucosa has a network of veins which may contribute to continence by forming a kind of erectile tissue. | ||
| Line 19: | Line 18: | ||
** Short and wide - mare | ** Short and wide - mare | ||
** 2 fossa - bitch | ** 2 fossa - bitch | ||
| − | ** | + | ** Suburethral diverticulum - cow and sow |
==Male== | ==Male== | ||
Revision as of 11:30, 1 September 2008
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This is the connection between the bladder and the external environment.
Female
- Empties at the external urethral orifice on the ventral wall of the vagina
- This is often at the vestibulo vaginal junction
- Only urine passes through it
- The urethral submucosa has a network of veins which may contribute to continence by forming a kind of erectile tissue.
- Length and diameter is species specific
- Short and wide - mare
- 2 fossa - bitch
- Suburethral diverticulum - cow and sow
Male
- Empties at tip of penis
- Divided into 3 parts
- Pre-prostatic - bladder neck to seminal hillock
- Prostatic portion - openings of deferant, vesicular and prostatic ducts
- Penile portion - ischial arch to penile tip
- Note the first 2 combined are called the pelvic portion
Blood Supply
Blood Supply comes from the Urethral Artery