Reproduction 0.0 / 5 ? ScienceReproductionGCSEAll boards Created by: alexwebb_xCreated on: 11-06-17 14:08 What does the placenta do? Where the baby gets its food, water, oxygen 1 of 34 What is the umbilical cord? Carries blood between the fetes and the placenta 2 of 34 What is a Fetus? When the embryo develops limbs and organs 3 of 34 What is an Embryo? A ball of cells formed from a fertilised egg 4 of 34 How long does pregnancy normally last? 9 weeks 5 of 34 What happens when the baby is ready to be born? The uterus contracts and the baby is born head first 6 of 34 What are fraternal twins? A boy and girl twin 7 of 34 How are identical twins formed? When the fertilised egg splits and forms another egg 8 of 34 How are normal twins formed? When the woman releases two eggs and both are fertilised 9 of 34 What protects the developing embryo? Amniotic fluid 10 of 34 Why does the fetus' blood not mix with the mother's ? The mothers blood is pumped at a higher pressure the the fetus 11 of 34 Where is the egg cell made? In the overy 12 of 34 Where does the baby develop? In the uterus 13 of 34 What part has ciliated cell to push the egg along? The oviduct 14 of 34 Where is sperm made? The testes 15 of 34 Which part adds fluids to the sperm to make semen? The glands 16 of 34 Which tube allows urine and semen to go out the penis? The urethra 17 of 34 What does the cervix do? Hold the baby in place 18 of 34 What is circumcision? When the foreskin is removed 19 of 34 What is menopause? When the woman stops releasing egg cells 20 of 34 What is internal fertilisation? When the egg cell develops in the woman 21 of 34 What is external fertilisation? When the egg cell develops outside the woman 22 of 34 What is a disadvantage of external fertilisation? Eggs could get eaten 23 of 34 Sperm cell specialities? Tail to help it swim, has a microchondria 24 of 34 Egg cell specialities? Large, contains loads of genetic information 25 of 34 .What is the gestation period? Average time an animal is pregnant for 26 of 34 What is afterbirth? When the placenta comes away from the uterus and passes out the vagina 27 of 34 How long is the menstrual cycle? 28-32 days 28 of 34 What happens during a period? The lining of the uterus comes away 29 of 34 How long does menstruation last? 3-7 days 30 of 34 What happens about 14 days into the menstruation? An egg I released 31 of 34 What is puberty? How your body changes and develops over time 32 of 34 What happens to you're ribs, diaphragm and intercostal muscles When you breath in? Ribs: Go down and in. Diaphragm: moves up. Intercostal muscles: relax 33 of 34 What happens to you're ribs, diaphragm and intercostal muscle when you breath out? Ribs:lift and expand. Diaphragm:moves down. Intercostal muscles: contract 34 of 34
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