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human reproduction
studdy cards
40
Science
9th Grade
12/13/2010

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Term
urethra
Definition
in males, a tube that transports both sprem and urine outside the body.
Term
vas deferens
Definition
a tube that carries sperm from the epididumis to the urethra.
Term
epuididymis
Definition
part of the male reproductive system.
Term
puberty
Definition
the period in human developmentin which the person becomes sexually mature and able to reproduce.
Term
penis
Definition
the organ that contains the urethra; enters female during sexual intercourse to allow the transfer of sperm.
Term
sperm
Definition
a male gamete
Term
scrotum
Definition
a protective sac that encloses the testicles.
Term
testes
Definition
produce and nourish sperm as they develope, and also produce testosterone
Term
flagellum
Definition
the tail like cell that is attached to sperm cells, that allows the sperm to swim.
Term
mitochondria
Definition
membrane enclosed cell found in most organelles.
Term
seminiferous tubules
Definition
Located in the testes, are the specific location of meiosis. Creates sperm.
Term
testosterone
Definition
Steroid hormone. Primarey in the testes of males, and in the ovaries of females.
Term
estrogen & progesterone
Definition
Primary sex hormone.
Term
seminal fluid
Definition
organic fluid, also known as sperm.
Term
vagina
Definition
female reproductive organ.
Term
cervix
Definition
narrow, lower end of the uterus,joins with the top end of the vagina.
Term
uterus
Definition
major hormone-responsive female reproduction organ.
Term
penis
Definition
male reproductive organ
Term
ovaries
Definition
an organ in the female's reproduction system that holds the egg cells until they mature and are released.
Term
ovulation
Definition
the release of a mature egg from the ovary
Term
fertilization
Definition
the joining or fusing of male and female gametes
Term
implantation
Definition
the embryo attaches to the wall of the uterus.
Term
embryo/fetus
Definition
a developing organism produced from a zygote.
Term
egg
Definition
a female gamete
Term
clone
Definition
an offspring of asexual reproduction; femetically identical to the parent and to other offspring produced asexually by the parent.
Term
artificial insemination
Definition
a procedure that involves intruducing sperm into the reproducive tract of the female by a method other then sexual reproduction
Term
invirto fertilization
Definition
fertilization of the egg that takes place outside of the body, in a petri dish in a lab.
Term
vegetative reproduction
Definition
asexual reproduction in plants; includes producing runners, bulbs, tubers, and cuttings.
Term
runners
Definition
an aerial shoot from a plant with the ability to produce adventitious roots and new clones.
Term
grafting
Definition
a form of asexual reproduction where the tissue of a plant is encouraged to fuse with another's tissues.
Term
recombinant DNA
Definition
combining genes from different individuals or different species into a single molecule of DNA
Term
GMO(genetically modified organism)
Definition
an organism that contains genes that have been intentionally altered; includes many food crops.
Term
fertility drugs
Definition
drugs that enhance reproductive fertility.
Term
intrauterine insemination
Definition
the process in which sperm is placed into the reproductive tract of the female for the purpose of impregnating the female in another way other then sexual reproduction.
Term
GIFT(gamete intrafallopian transfer)
Definition
eggs are removed from a woman's ovaries, and placed in one of the fallopian tubes. along with the man's sperm. Encourages fertilization of the egg.
Term
surrogate
Definition
a woman who carries embryos produced by in vitro fertilization for an infertile couple.
Term
ISI(intracytoplasmic sperm injection)
Definition
in vitro fetilization procedure in which a single sperm is injected directly into an egg.
Term
selective breeding
Definition
two plants or two animals of one species that hace desirable traits are bred with each other to produce offspring with the same traits as the parents.
Term
infertile
Definition
a woman who is unable to carry a pregnancy to full term.
Term
donar(egg or sperm)
Definition
a man or a woman that gives his/her sperm/eggs to a donor bank with the intention that it could be used to help an infertile couple get pregnant.
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