29 terms

Pearson Biology Ch.33 Reproductive System

Reproductive system
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ovary
in animals, female reproductive
organ that produces
egg cells and hormones
follicle
cluster of cells that surround,
protect, and nourish a developing
egg cell in an ovary
uterus
in female mammals, the organ
where the young develop
before birth
cervix
neck of the uterus, opening
into the vagina
vagina
part of the female reproductive
system that leads from the
uterus to the outside of the
body; functions as the birth canal and the passageway for menstrual flow
testis
male reproductive organ that
produces sperm and hormones
scrotum
sac that houses the testes
outside the abdomen
epididymis
long, thin coiled tube where
sperm mature and are stored
semen
sperm-containing fluid that is
released from the penis
during ejaculation
vas deferens
tube that conveys sperm between
the epididymis and the urethra
penis
male reproductive organ;
also contains the urethra and
functions in eliminating urine
from the body
ovulation
release of a secondary oocyte
from an ovarian follicle
ovum
mature egg cell with
a haploid nucleus
menstrual cycle
cyclic changes that occur
in the uterus
endometrium
inner lining of the uterus;
site of implantation of
the embryo
menstruation
discharge resulting from
shedding of the endometrium
during the menstrual cycle
corpus luteum
ovarian structure that forms
from a follicle after ovulation;
secretes progesterone
and estrogen
fertilization
the fusion of the nucleus of
a haploid sperm cell and
the nucleus of a haploid egg
cell, forming a diploid zygote
zygote
diploid cell formed when
the nucleus of a haploid
sperm cell fuses with the nucleus
of a haploid egg cell
blastocyst
stage in human embryonic
development; fluid-filled ball
of cells that implants in the endometrium
embryo
stage in human development
from the first division of
the zygote until about nine
weeks after fertilization
implantation
imbedding of a blastocyst
into the endometrium
placenta
organ that develops inside
the uterus and enables the transfer
of nutrients, gases, and waste
products between the mother
and developing baby
fetus
stage of human development
from nine weeks after
fertilization until birth
oxytocin
hormone secreted by pituitary
gland that stimulates
contractions of the uterus
puberty
stage of human development
when reproductive organs
become functional and
secondary sex characteristics develop
menopause
point in life when a woman
stops ovulating, usually in her 50s
gynecology
medical specialty that focuses
on wellness of the female
reproductive system
sexually transmitted disease (STD)
infectious disease spread by sexual contact