Human Reproduction Flashcards
1
Q
Fertilisation?
A
Fusion of nuclei from male gametes-sperm & female gamete-egg cell
2
Q
Vagina?
A
Receives penis during sex
Muscular canal
- muscular & stretchable
- serves as birth canal
Lining produces lubricating fluid
3
Q
Cervix?
A
Where uterus joins vagina
Supplies mucus to vagina
-softer when secreting mucus
4
Q
Uterus?
A
Pear-shaped organ -lies behind & just above bladder Walls contain involuntary muscle Where embryo develops Womb Hollow Sheds wall lining every month then re-builds
5
Q
Ovaries?
A
Female gonads
-making & releasing female gametes-eggs
Two of them- release alternatively every 4 weeks
Produce sex hormones–>oestrogen & progesterone
Only release after puberty has started
6
Q
Testes?
A
Male gonads -produce male gametes-sperm Made of millions of tiny coiled tubes -cells forming walls of tubes are constantly dividing to produce up to 100 million sperm per day Outside body -work best just below body temp -held by scrotum
7
Q
Oviducts?
A
Tubes carrying eggs away from ovaries
-lined with Cilia-help eggs move
-also known as Fallopian tubes
Fertilisation occurs 1/3 of way along oviducts
8
Q
Which part of a sperm contains a large number of mitochondria?
A
Middle piece
