reproduction Flashcards
what is reproduction?
producing new children and prevent extinction
what is the female sex cell
ova
what is the male sex cell
sperm
what is chromosomes
carries DNA which controls our growth and appearance
what is the male sex hormone
testosterone
what is the female sex hormone
oestrogen
when does puberty start for girls
10 to 12
when does puberty start for boys
12 to 14
what happens during puberty
reproductive organs mature and produce sex hormones
whats a zygote
fertilised egg
what is fertilisation
fusion of both sperm and egg cell’s nucleus to form a zygote
where does fertilisation take place
oviduct
where is sperm released and into where
sperm is released from the penis and into the vagina
where does implantation occur
uterus
what is ovulation
release of an ovum
What affects the development of the fetus?
the food she consumes and substance abuse
what are examples of substance abuse
smoking , drinking and drugs
birth control works by doing what
preventing ovulation, fertilisation or implantation of an embryo
what is rhythm method
couples dont have sex on the fertile period
what is Diaphragm
dome shaped plastic covering the cervix
whats a IUD(intra-uterine device)
inserted into the uterus to prevent sperm from fertilising an egg
what is a permanent method of birth control for the males
vasectomy
what is a permanent method of birth control for the females
tubal ligation
how does vasectomy work
sperm ducts are cut and tied
how does tubal ligation work
cutting and tying both oviducts
why do people do abortion
baby might be deformed, unplanned preg, poverty and life of mother might be in danger
how sti spreads?
sexual intercourse, blood tranfusions, contaminated needles
what is syphilis and gonorrhoea
caused by species of bacteria
effects of syphilis?
early:flu like rashes
late: deformed joints, teeth
effects of gonorrhoea
burning sensation when peeing n discharge of pus
what is hiv
is a viral type of infection
what does testis do
produce sex hormones and sperm
what do sex glands do
produce seminal fluid
what is seminal fluid
mixture sperm and fluid (semen)
what is the sperm duct
a tube that connects testes to urethra
what is urethra
tube that allows semen to be pass through and pee to go out
what does ovary do
produce eggs(ova) and sex hormones
what is oviduct
tube which egg travel to and where fertilisation occurs
what is uterus
embryo develops there and uterine lining which implantation occurs
what is cervix
narrow opening of the uterus, connects uterus to vagina
what happens during day 1-5
mensuration
what happens during 6-10
the uterine lining thickens again
what happens during day 11-18
ovulation occurs (normally day 14) fertile period as well
what happens on day 19-28
thickens wall again
