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Ovulation - Anatomy & Physiology (view source)
Revision as of 16:03, 29 July 2008
, 16:03, 29 July 2008→Consequences of Pre-ovulatory LH surge
==Consequences of Pre-ovulatory LH surge==
==Consequences of Pre-ovulatory LH surge==
'''Hyperaemia'''
'''Hyperaemia'''
*LH causes the release of Prostaglandin E2 (PGE2)anf Histamine. These both cause a general increase in blood supply to the Ovaries and an increase in the local blood supply to the dominant follicles.
*LH causes the release of Prostaglandin E2 (PGE2) and Histamine. These both cause a general increase in blood supply to the Ovaries and an increase in the local blood supply to the dominant follicles.
*The local increase in blood supply ensures that the dominant follicles recieve all the nutrients they require to reach maturation and ovulation.
*The local increase in blood supply ensures that the dominant follicles recieve all the nutrients they require to reach maturation and ovulation.
*The increase in blood supply also causes formation of oedema within the follicles due to increased hydrostatic pressure within the ovarian cappilaries. This oedema causes an increase in intra-follicular pressure.
*The increase in blood supply also causes formation of oedema within the follicles due to increased hydrostatic pressure within the ovarian cappilaries. This oedema causes an increase in intra-follicular pressure.