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Primary function of the male reproductive system:
produce sperm and deliver them to unite with a single ovum to create offspring
External male genitalia:
penis, scrotum, testes
Testicles/testes
2 small, egg-shaped glands that produce sperm
Scrotum
surrounds, protects, and supports the testes
Seminiferious tubules
the part of the testes in which sperm forms
Spermatozoa
another word for sperm
Spermatogenesis
process of sperm formation
Epididymis
coiled tube at the upper part of each testis; sperm is released here; runs the length of the testis and then turns upward to the body
Vas Deferens (Ductus Deferens)
narrowed tube formed by the epididymis
Spermatic Cord
vas deferens, associated nerves, veins, arteries, and lymphatic vessels
Penis
organ that transports sperm into the female vagina
Ejaculatory Duct
begins at the vas deferens and empties into the urethra
Urethra
passes through the penis to the outside of the body; part of the reproductive and urinary system
Seminal Vesicles
glands whose secretions nourish the sperm; located at the base of the bladder and open to the vas deferens
Prostate Gland
secretions to help with sperm motility; lies under the bladder and surrounds the end of the urethra where the vas deferens enters
Movement of Sperm (in detail)
sperm is made in the seminiferous tubules (in the testicles, in the scrotum), sperm is released into the epididymis, which forms the vas deferens, the seminal vesicles and prostate gland add secretions to form semen, the vas deferens releases secretions through the ejaculatory duct into the urethra (in the penis), where urination and/or ejaculation occurs
Primary function of the female reproductive system:
creation and support of new life
Ovaries
2 small, almond-shaped organs in the lower abdomen; contain ova (eggs), the female gametes; immature ova are present at birth, after puberty, one ovum matures and is released per month
Follicle
a fluid-filled sac with a single ovum; each ovary contains thousands
Fallopian Tubes (uterine tubes)
2 tubes that extend from a point near the ovaries to the uterus; each month, they carry a mature ovum to the uterus; they also carry sperm upward from the uterus to the ovum for fertilization
Infundibulum
the funnel-shaped opening into the tube near the ovary
Fimbriae
fringed, finger-like extensions of the opening; they catch the ovum
Uterus
pear-shaped organ with muscular walls (myometrium), a mucus membrane lining (endometrium), and a rich blood supply; located between the urinary bladder and the rectum
Cervix (cervix uteri)
the lower, narrow portion that extends into the vagina
Menstruation (menses)
normal discharge of endometrial lining and unfertilized egg from uterus
Menopause
the normal end of menstruation in women during middle age
Vagina
muscular tube lined with mucosa that extends from the cervix to the outside of the body
Vaginal Orifice
exterior opening of the vagina
Vulva
consists of the external female genitalia, including the vaginal orifice