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Human Reproduction

Junior Cert Science

QuestionAnswer
What do you call the male gamete Sperm cell
What do you call the female gamete Egg cell
What do you call the fusion of the male and female gamete Fertilisation
Where is sperm made Testes
Where is the egg made Ovary
When a sperm fuses with an egg, what happens It makes a new cell, which then begins to divide to develop a baby
Where in the mother does a baby grow In the womb
Give another name for the womb Uterus
What do you call the time when sex hormones are released and physical changes occur to a young persons body Puberty
Name some physical changes that occur to the boys body Voice deepens, body hair grows, penis and testes grow larger and begin to produce sperm
Name some physical changes that occur to the girls body Breasts develop, hips widen, body hair grows, eggs released form ovary every month
On average how often is an egg released from the ovary Every 28 days
What do you call the release of an egg from the ovary Ovulation
What do you call the cycle where the girls body prepares itself for pregnancy Menstrual cycle
On average, how long is the menstrual cycle 28days
On days 1 to 5 what happens on the menstrual cycle Lining of the womb breaks down (bleeding)
On days 6 to 12 what happens in the menstrual cycle Lining of the womb builds back up
On days 13 to 15, what happens in the menstrual cycle Egg is released
On days 16 to 28, what happens in the menstrual cycle Lining stays built up
After a 28 day cycle, if pregnancy does NOT occur, what happens The lining of the womb breaks down and bleeding occurs
After a 28 day cycle, if pregnancy does occur, what happens The new cell, begins to divide and moves to the womb
Day 11 to day 18, is the time a woman is most likely to get pregnant, what is this time called Fertile period
Can the average length of a fertile period, increase of decrease for women Varies for all
What make a mans penis hard and erect before intercourse It fills with blood
Semen is released from the mans penis during intercourse, what is semen A mixture of sperm cells and seminal fluid
After semen is ejaculated from the penis, where do the sperm go They swim up through the uterus to the fallopian tubes
If an egg is present, what happens in the fallopian tubes, what happens Sperm fuses with the egg and fertilisation occurs
After fertilisation, the fused egg continues to divide in the fallopian tube, where does it eventually go to The uterus
What happens in the uterus The fertilised egg embeds in the wall of the uterus which is rich in blood
What is the placenta It is attached to the wall of the womb and is rich in blood vessels
What do you call the cord that attaches the baby to the mother Umbilical cord
Created by: Teacher Amrein