human reproduction
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reproduction definition
reproduction is the way new individuals are produced from their parents
define sexual reproduction
involves a cell from each parent joining to form a baby
define gametes
sex cells -the sperm and the egg
define fertilisation
when the nucleus of the sperm joins with the nucleus of the egg to form a zygote
whats a zygote
a fertilised egg
function of scrotum
hold testicles at room temp
function of testis
produce sperm
the thing in the middle of the thing
urethra
the little cloud underneath the bladder
seminal vesicle
the egg underneath the bladder
prostate gland
what do the seminal vesicle and prostate gland do
secrete seminal fluid to nourish sperm
function of sperm duct
carries sperm to penis
function of penis
allows sperm to be transferred to female
function of vagina
holds penis during intercourse
whats the cervix
entrance to the uterus
function of fallopian tubes also known as
oviduct -where fertilisation takes place
define menstrual cycle
series of monthly changes a woman’s body undertakes as it prepares for the possibility of pregnancy
what happens in the ovary and the uterus day 1-5 of m.c
egg matures ; menstruation blod and tissue lost through vagina
day 5-14 what happens in ovary and uterus?
egg matures; blood and tissue build up
day 14 what happens in ovary and uterus
Ovulation -egg is releases into the fallopian tube (will die soon if not fertilised blood and tissue build up
14-28 what happens in ovary and uterus
hormones released in ovary blood and tissue remain built up
define ovulation
the release of an egg from the ovary into the fallopian tube
define fertile period
the time during the menstrual cycle when fertilisation can occur and the female can become pregnant
how is an embryo made
the zygote divides many times, producing a ball of cells aka embryo