ch 18/19 Flashcards
the male reproductive cells
sperm
the system of organs involved in producing offspring
reproductive system
the male sex hormone
testosterone
two small glands that produce sperm
testes
an external skin sac
scrotum
a tube-shaped organ that extends from the trunk of the body just above the testes
penis
a thick fluid containing sperm and other secretions from the male reproductive system
semen
the joining of a male sperm cell and a female egg cell
fertilization
the inability to reproduce
sterility
female reproductive cells
ova
a hollow, muscular, pear-shaped organ inside a females body
uterus
the female sex glands that store the ova and produce female sex hormones
ovaries
the process of releasing a mature ovum into the Fallopian tube each month
ovulation
a pair of tubes with fingerlike projections that draw in the ovum
Fallopian tubes
a muscular, elastic passageway that extends from the uterus to the outside of the body
vagina
opening to the uterus
cervix
shedding of the uterine lining
menstruation
the zygote attaches to the uterine wall
implantation
the developing child from the time of implantation until about the 8th week of development
embryo
developing embryo in the uterus
fetus
a thin, fluid-filled membrane that surrounds and protects the developing embryo
amniotic sac
a ropelike structure that connects the embryo and the mother’s placenta
umbilical cord
a thick, blood-rich tissue that lines the walls of the uterus during pregnancy and nourishes the embryo
placenta
the final stage of pregnancy in which the uterus contracts and pushes the baby out of the mother’s body
labor
