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Unit 3: Human Reproduction - Coggle Diagram
Unit 3: Human Reproduction
The female reproductive sistem
Ovaries
Fallopian tube
Female reproductive organs
Uterus
The physical differences between men and women are called sexual characteristics.
Vagina
The male reproductive sistem
The organs work together to produce sperm. Sperm cells move along female fallopian tubes
and fertilise the ovum.
Seminal vasicle
Preotate
Penis
Vas deferens
Male reproductive organs
Urethra
Testicle
Scrotum
Pregnancy and birth
FROM ZYGOTE TO EMBRYO
The zygote travels to the uterus
It attaches to the wall of the uterus and it continues to grow and divide.
Embryo. It continues growing and developing.
FROM EMBRYO TO FOETUS
9 weeks, all of the embryo´s organ shave formed and it becomes a foetus.
The foetus floats inside a sac of amniotic fluid.
The foetus is connected to the mother by the umbilical cord and the placenta.
The placenta provides the foetus with oxygen and other nutrients. The placenta also
absorbs carbon dioxide and other waste products that the foetus produces.
LABOUR AND BIRTH
40 weeks.
LABOUR: The muscle of the uterus start to contract.
These contractions push the baby against the cervix.
The amniotic sac breaks and the fluid is released.
The baby is pushed through the cervix, into the vagina, or birth canal
The placenta separates from the wall of the uterus and leaves through the birth canal.
FERTILISATION
It occurs when a sperm cell joins with an ovum
The sperm cells move through the uterus and into the fallopian tubes
Only one sperm cell can fertilise the ovum
The ovum starts to divide and grow in size
It forms a ball of cells called a zygote