Difference between revisions of "Urethra - Anatomy & Physiology"
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| Line 15: | Line 15: | ||
* At the vestibulo vaginal junction | * 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. | ||
* Length and diameter is species specific | * Length and diameter is species specific | ||
** Short and wide - mare | ** Short and wide - mare | ||
Revision as of 11:20, 22 August 2008
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This is the connection between the bladder and the external environment.
Female
- Empties at the external urethral orifice
- Ventral wall of vagina
- 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
- Sub urethral 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