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31 Cards in this Set

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penis
a male sexual organ consisting of the internal root and the external shaft and glans
root
portion of the penis that extends internally into the pelvic cavity
shaft
the length of the penis betweent he glans and the body
glans
the head of the penis; it is richly endowed with nerve endings
cavernous bodies
the structures in the shaft of the pensi that engorge with blood during sexual arousal
spongy body
a cylinder that forms a bulb at the base of the benis, extends up into the penile shaft, and forms the penile glands
foreskin
a covering of skin over the penile glans
corona
the rim of the penile glans
frenulum
a highly senstive thin strip of skin that connects the glans to the shaft on the underside of the penis
scrotum
the pouch of skin of the external male genitals that encloses the testes
testis
male gonad insde the scrotum that produces sperm and sex hormones
spermatic cord
a cord attached to the testis that contains the vas deferens, blood vessels, nerves, and cremasteric muscle fibers
cryptorchidism
a condition in which the testes fail to descend from the abdominal cavity to the scrotal sac
seminiferous tubules
thin coiled structures in the testes in which sperm are produced
interstitial cells
cells located between the seminiferous tubules that are the major source of androgen in males
epididymis
the structure along the back of each testis in which sperm maturation occurs
ejaculatory ducts
two short ducts located within the prostate gland
urethra
the tube through which urine passes from the bladder to the outside of the body
seminal vesicles
small glands adjacent to the terminals of the vas deferens that secrete an alkaline fluid (conducive to sperm motility) that constitutes the greatest portion of the volume of seminal fluid released during ejaculation
prostate gland
gland located at the base of the bladder that produces about 30% of the seminal fluid released during ejaculation
Cowper's glands
two pea sized glands located alongside the base of the urthra in the male that secrete an alkaline fluid during sexual arousal
semen
viscious fluid ejaculated through the penis that contains sperm and fluids fromt eh prostate, seminal vesicles, and Cowper's glands
erection
the process by which the penis or clitoris engorges with blood and increases in size
emission phase
the first stage of male orgasm, in which the seminal fluid is gathered in the urethral bulb
expulsion phase
the second stage of male orgasn, during which the semen is expelled from the penis by muscular contractions
retrograde ejaculation
the process by which semen is expelled into the bladder instead of out of the penis
nocturnal emission
involuntary ejaculation druing sleep; wet dream
Genital retraction syndrome
unusual culture bound phenomenon in which a male believes his penis is shrinking and retracting into his body
Koro
a widely used term for the genital retraction syndrome
Phimosis
a condition characterized by an extremely tight penile foreskin
urology
the medical specialty dealing with reproductive health and genital diseases of the male and urinary tract diseases in both sexes