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Reproductive System Basics
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Fallopian Tubes
Pair of tubes along which eggs travel from the ovaries to the uterus.
Cervix
The narrow passage forming the lower end of the uterus and opening into the vagina.
Spermatozoa
Male reproductive cells designed to carry genetic information and fertilize an oocyte.
Ovaries
Female reproductive glands that produce oocytes and secrete hormones like estrogen and progesterone.
Fimbriae
Finger-like projections at the end of the fallopian tubes that help guide the released egg into the tube.
Semen
The male reproductive fluid, containing spermatozoa in suspension.
Prostate Gland
Adds a chemical fluid to the semen that protects and energizes sperm.
Labia Majora
The larger outer folds of the vulva.
Labia Minora
The smaller inner folds of the vulva.
Myometrium
The smooth muscle layer of the uterus which contracts rhythmically during childbirth.
Testes
Male reproductive glands responsible for the production of sperm and secretion of testosterone.
Endometrium
The mucous membrane lining the uterus, which thickens during the menstrual cycle and is shed during menstruation if no pregnancy occurs.
Corpus Luteum
A hormone-secreting structure that develops in an ovary after an egg has been discharged, but degenerates after a few days unless pregnancy has begun.
Clitoris
A small sensitive and erectile part of the female genitals at the anterior end of the vulva.
Seminal Vesicles
Two small glands that secrete a fluid rich in sugar that nourishes and helps sperm move.
Vagina
A muscular canal leading from the external genitals to the cervix of the uterus in females.
Scrotum
A pouch of skin containing the testicles.
Endocrine function of the Testes
The production and secretion of hormones, primarily testosterone, by the interstitial cells.
Acrosome
A cap-like structure covering the head of a sperm that contains enzymes helping the sperm to penetrate the egg.
Epididymis
A long, coiled tube that stores sperm and transports it from the testes.
Vas Deferens
The duct that conveys sperm from the testicle to the urethra.
Uterus
A hollow muscular organ in females where the fertilized egg implants and a fetus develops.
Bulbourethral Glands
Small glands near the male urethra that secrete fluid into the urethra during sexual arousal.
Mammary Glands
Exocrine glands in females that produce milk to feed young offspring.
Ampulla
An enlarged, saclike portion of the fallopian tube where fertilization often occurs.
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