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Normal Parturition - Anatomy & Physiology (view source)

Revision as of 10:30, 17 June 2010

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* [[Parturition - Coordinated Myometrial Contraction - Anatomy & Physiology|Coordinated Myometrial Contraction]]
 
* [[Parturition - Coordinated Myometrial Contraction - Anatomy & Physiology|Coordinated Myometrial Contraction]]
 
* Voluntary contraction of abdominal muscles
 
* Voluntary contraction of abdominal muscles
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== Stage 3: Placental Expulsion ==
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In most species, expulsion of foetal membranes quickly follows expulsion of the foetus. 
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* After the birth of the young, regular abdominal contractions largely cease.
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* Myometrial contractions persist.
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** Decreased amplitude, but become more frequent and less regular.
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** Important for dehiscence and expulsion of foetal membranes.
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* Waves of contractions from uterus to the cervix persist.
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** Act in a peristaltic fashion in the cow and sow in the reverse direction.
      
== Placental Changes ==
 
== Placental Changes ==
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** Not the mare or camelids.
 
** Not the mare or camelids.
   −
== Parturition Behaviour ==
+
== Placental Expulsion ==
 +
 
 +
In most species, expulsion of foetal membranes quickly follows expulsion of the foetus. 
 +
 
 +
* After the birth of the young, regular abdominal contractions largely cease.
 +
* Myometrial contractions persist.
 +
** Decreased amplitude, but become more frequent and less regular.
 +
** Important for dehiscence and expulsion of foetal membranes.
 +
* Waves of contractions from uterus to the cervix persist.
 +
** Act in a peristaltic fashion in the cow and sow in the reverse direction.
 +
 
 +
 
 +
= Parturition Behaviour =
    
== Mare ==
 
== Mare ==
Suzannah.stacey
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