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Human Reproduction - Coggle Diagram
Human Reproduction
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The Menstrual Cycle
The menstrual cycle is the monthly series of changes a woman's body goes through to prepare for the possibility of pregnancy. Ovulation and menstruation are part of this cycle.
Ovulation is the time during the menstrual cycle when an egg is released from the ovary into the fallopian tube.
Menstruation is the process of blood and tissue that has built up in the uterus breaking down and leaving the body through the vagina.
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Reproduction
Reproduction is the process whereby new individuals (offspring) are made from their parents. It is one of the characteristics of life.
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Each parent produces a sex cell called a gamete. In humans this is the egg cell (female) and the sperm cell (male).
Fertilisation happens when the nucleus of the sperm joins with the nucleus of the egg to form a zygote.
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Contraception
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Natural contraception involves careful monitoring of the menstrual cycle and avoiding sexual intercourse during the fertile period.
Artificial contraception involves mechanical methods, which act as barriers to sperm getting to the egg, and chemical methods that use hormones to prevent ovulation.
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Breastfeeding
Once the baby is born, hormones in the mother cause milk production from the mammary glands.
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The Fertile Period
The fertile period occurs during the menstrual cycle. This is the time during the cycle when fertilisation can occur and the female can become pregnant.
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