science 8?? Flashcards
a (18 cards)
Male reproductive system
produces sperm, which fertiles egg, and hormones, which is for development of adult characteristics
testosterone
main male hormone
Penis
external male reproductive organ with a tip called glans. has foreskin, and is used to dispose of urine
scrotum
pair of pouch like sacs that support testes, controls temp as testes need to be cool
testicles
glands that produce sperm cells and testosterone. they are external because they need to be cold
sperm cells
made in testes and fertilizes egg
epididymis
narrow coiled tube that stores immature cells until they mature. located on top of the testes
urethra
passageway of both urine from bladder and semen from the glands
Seminal vesticles
sac-like pouches attached to vas deferens and provides sugar for sperm mobility
vas deferens
long, muscular tube that serves as passageway for sperm released from testes
female reproductive system
gives temporary place for developing humans and entry of sperm, makes female hormones
fallopian tube
external organ that connects ovary w ureters, where sperm and egg meet
ureters
where babies are housed, womb. upside down pear shape
part of ureters that sheds and gets bigger monthly for prep
uterine lining or endometrium
ovary
produce egg cells and sex hormones, estrogen and progesterone, they have two ovaries
vagina
birth canal, hollow muscular tube that leas to an opening, vulva, it expands for delivery
cervix
very narrow opening between uterus and vagina which enlarges to let passage of fetus
how many sperm enter vagina
300 mil, they die from acidity or entering the immune system
