Menstruation and Reproduction

The Menstrual Cycle Female reaches puberty =

__________ cause eggs to begin to mature

_________ begin to release one egg/month = ____________

To prepare for the egg, _______ thickens with blood

If _____________ doesn’t occur, then the lining is expelled from the body (_____________)

The Menstrual Cycle Time from one menstruation to another

Usually ___ days, but often irregular in girls and even women due to stress, illness, etc.

Usually begins between 9-16

Can cause cramps, dizziness, nausea

http://www.doereport.com/enlargeexhibit.php?ID=10405

Fertilization If a sperm is present in the uterus ,

then the sperm swim to the __________ tube

If an egg is present, it will ____________ and travel to the uterus

It implants in the lining (so the lining is not expelled) which _____________ the egg as it grows