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Normal Parturition - Anatomy & Physiology (view source)
Revision as of 13:29, 4 August 2008
, 13:29, 4 August 2008→Stage 2
=== Stage 2 ===
=== Stage 2 ===
* Abrupt onset
* Abrupt onset, lasts~17 minutes
* Appearance of the amnion or commencement of forceful straining
* Appearance of the amnion or commencement of forceful straining
** Not much delay between them, often coincide.
** Not much delay between them, often coincide.
* Umbillical cord is intact when the foal is born.
* Umbillical cord is intact when the foal is born.
** Subsequently ruptures 5-8cm below the belly due to movement of the mare or foal.
** Subsequently ruptures 5-8cm below the belly due to movement of the mare or foal.
* Foal is usually born within the amnion, which is ruptured by movements of the forelegs.
* Lower portions of the hindlimbs often remain within the vagina for minutes after the rest of the foal is born.
=== Stage 3 ===
=== Stage 3 ===