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Ovulation

Revision as of 07:55, 25 July 2019 by NRJC (talk | contribs)

Key Stage 3

Meaning

Ovulation is when an ovum is released from an ovary.

About Ovulation

The ovum rolls along the edge of the oviduct swept along by cilia following ovulation.
Ovulation takes place on the 14th day of the menstrual cycle.

Key Stage 4

Meaning

Ovulation is when an ovum is released by a follicle in the ovary.

About Ovulation

Prior to ovulation follicle stimulating hormone causes the follicles to grow and the ovum to mature.
Ovulation is triggered by a sudden increase in luteinising hormone around the 14th day of the menstrual cycle which causes the ovum to be released from a follicle.
Following ovulation the ovum rolls along the edge of the oviduct swept along by cilia.
MenstrualCycleGraph2.png
A graph showing changes during the menstrual cycle including ovulation. The graph notes:
The stages of follicle growth and ovulation.
The body temperature.
The hormone levels.
The relative thickness of the uterine wall.