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Cervix - Anatomy & Physiology (view source)
Revision as of 12:01, 9 September 2008
, 12:01, 9 September 2008→Structure
==Structure==
==Structure==
*
* The lumen of the cervix is the cervical canal.
* The canal is formed by, and often almost occluded by mucosal folds.
* Folds surround the lumen
** Single fold and smooth surface in the queen and bitch
** Single fold and smooth surface in the queen and bitch
** Multiple folds protruding into the cervical canal in the cow, ewe, sow and mare
** Multiple folds protruding into the cervical canal in the cow, ewe, sow and mare.
* The cervical canal opens cranially into the body of the uterus at the internal uterine ostium.
* The cervical canal opens caudally into the vagina at the external uterine ostium.
=== Cow and Ewe ===
=== Cow and Ewe ===
=== Mare ===
=== Mare ===
* Simple cervix with the most caudal part bulging into the vagina to form a distinct recess (vaginal fornix).
* Low volume mucous secretion
* Low volume mucous secretion
* Multiple folds
* Multiple folds
=== Bitch ===
=== Bitch ===
* Simple cervix with the most caudal part bulging into the vagina to form a distinct recess (vaginal fornix).
* Single fold
* Single fold
* Relatively smooth surface
* Relatively smooth surface
=== Queen ===
=== Queen ===
* External uterine ostium opens on a small hillock projecting into the vagina.
* Small
* Small
* Thick walled compared to the uterus or vagina
* Thick walled compared to the uterus or vagina