Reproductive System Flashcards
sexual reproduction
the production of an offspring by fusion of haploid gametes (egg, sperm) to make zygote
asexual reproduction
production of offspring w/out fusion of haploids
fragmentation, budding, fission, parthenogenesis
hermaphroditism
each individual has both male and female reproductive systems
in external fertilization
release of eggs and sperm must by synchronized
external fertilization
eggs shed are fertilized in external environment
moist habitat always required
spawning
spawning
when the organisms release eggs and sperm into water at the same time
internal fertilization
adaptation that allows fertilization despite environment
requires compatible organs
pheromones
parental care
behavioral interactions
human male system
testes
seminiferous tubules
scrotum
epididymis
vas deferens
seminal vesicles
prostate
bulbourethral glands
urethra
testes
the male gonads
produce sperm
seminiferous tubules
where the testes produce sperm
scrotum
where the testes are held
outside the core body
temp lower
epididymis
where the sperm are stored after being created
vas deferens
where the sperm travel
the sperm get secretion from prostate, bulb glands, and seminal vesicles in the vas def
urethra
where the sperm/semen exits
human female reproductive system
ovaries
follicles
oocyte
oviduct
uterus
endometrium
cervix
vagina
vulva
ovaries
female gonads
contains follicles
follicles
contain partially developed egg (oocyte)
oviduct (fallopian tube)
where the oocyte travels to the uterus from ovaries
has cilia
uterus
holds and supports egg
endometrium
uterine lining
has many blood vessels
cervix
where uterus narrows into vagina
vulva = where vagina opens to outside
gametogenesis
production of gametes
oogenesis
production of oocyte
immature eggs develop as the female is an embryo
eggs do not develop until years later
spermatogenesis
the formation of sperm
hundreds of millions of sperm produced each day
