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Uterus - Anatomy & Physiology (view source)
Revision as of 20:46, 17 July 2008
, 20:46, 17 July 2008no edit summary
==Introduction==
==Introduction==
==Structure==
==Function==
*Provides a suitable environment for embryo development and attachment.
*In response to increasing amounts of oxytocin production by the corpus luteum during the luteal phase the endometrium produces luteolytic PGF2a to cause degeneration of the corpus luteum.
*The uterus contributes varying amounts of maternal tissues towards the placenta.
*The myometrium is involved with sperm transport through the uterus towards the oviduct.
*Contrations of the myometrium during parturition is important for feotus and placenta expulsion.
==Histology and Innervation==
==Anatomical Location & Boundaries==
The Uterus body and Uterine horns are located within the abdominal cavity dorsal to the Intestinal mass.
-broad ligament?
==Histology==
The appearance of the uterus varies with the stages of the oestrus cycle.
'''Follicular phase'''
*
'''Luteal phase'''
*
'''Anoestrus'''
*
==Innervation==
The uterus is innervated by both Sypathetic and Parasympathetic fibres which play a part in the regulation of uterine activity. This is highlighted by Iatrogenic manipulation of parturition using β-Adrenoreceptor Agonists for delaying parturition and Antagonists for inducing parturition. However, uterine activity and normal parturition can be acheived when these nerves are severed.
==Vasculature==
*Uterine branch of the Ovarian artery supplies the cranial parts of the Uterine horns.
*Uterine artery supplies the rest of the uterine horns and the uterine body. This is a branch off the Internal Iliac artery in most domestic species, except the Mare where insted it is a branch off the External Iliac artery. The Uterine artery and the Ovarian artery anastomose within the Broad ligament.
==Links==
==Links==