Biology Of Human Reproduction Flashcards
sexual reproduction
A reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents
Gametes
reproductive cells
Sperm
male gamete
ovum
female gamete, also called the egg
Ovaries
Glands that produce the egg cells and hormones
Uterus
Female organ of reproduction used to house the developing fetus. Also called the womb
Cervix
The opening to the uterus
Vagina
A muscular, elastic passageway that extends from the uterus to the outside of the body
vulva
external female genitalia; includes the labia, hymen, clitoris, and vaginal opening.
fallopian tubes
tubes which carry eggs from the ovaries to the uterus and which provides the place where fertilization occurs
Implantation
process in which the blastocyst attaches to the wall of the uterus
Blastocyst
A fluid-filled sphere formed about 5 days after fertilization of an ovum that is made up of an outer ring of cells and inner cell mass. This is the structure that implants in the endometrium of the uterus.
endometrium
inner lining of the uterus
clitoris
organ of sensitive erectile tissue above the opening of the female urethra
testis
male reproductive organ that produces sperm and hormones
Epididymis
A long, coiled duct on the outside of the testis in which sperm mature. Connects the testes to the vas deferens
vas deferens
tube that carries sperm from the epididymis to the urethra
prostate gland
A gland in males that contributes to the seminal fluid.
ejaculatory duct
tube through which semen enters the male urethra
ejaculation
ejection of sperm and fluid from the male urethra
Urethra
tube leading from the urinary bladder to the outside of the body. In human males, this also carreis semen
semen
A thick fluid containing sperm and other secretions from the male reproductive system
Circumcision
surgical removal of the foreskin which covers the head or glans of the penis
penis
Male reproductive organ
germinal stage
the 2-week period of prenatal development that begins at conception
embryonic stage
the period of prenatal development that lasts from the second week until about the eighth week
fetal stage
the period of prenatal development that lasts from the ninth week until birth
Estrogen
A sex hormone, secreted in greater amounts by females than by males.
Testosterone
A sex hormone, secreted in greater amounts by males than by females
Erection
erectile tissue fills with blood, causing penis to enlarge and become rigid
seminal vesicles
two small glands that secrete a fluid rich in sugar that nourishes and helps sperm move
Intersex
People who are born with variation in chromosomes, genitalia, gonads, and/or hormones that do not fit the typical definition of male or female.
orgasm
climax of sexual stimulation
Masturbation
sexual self-stimulation
puberty
the period of sexual maturation, during which a person becomes capable of reproducing