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35 Cards in this Set

  • Front
  • Back
Sex cells
male gametes
female gametes
male primary sex organs
gonads or testes
male secondary sex organs
three catagories
1. sperm-transporting ducts
epididymides, ductus deferentia, ejaculatory ducts

2. accessory glands
seminal vesicles, prostate and bulbourethral glands

3. copulatory organ - penis
male secondary sex characteristics
physique, voice pitch, body hair
diamond shaped region between the symphysis pubis and the coccyx
scrotum functions
support and protect the testes, and to regulate their position relative to the pelvic region of the body.
layer of smooth muscle fibers in the subcutaneous tissue of the scrotum
small band of skeletal muscle extending through the spermatic cord
scrotal septum
subdivides the scrotum into two compartments
perineal raphe
median longitudinal ridge extending forward to the undersurface of the penis and backward to the anal opening
two tunics covering the testes
tunica vaginalis - outer
tunica albuginea - tough fibrous membrane directly covering each testis- inner
testicular lobules
partitions in the testis formed by inward extensions of the tunica albuginea
seminiferous tubules
functional units of testes where spermatozoa are produced
specialized germinal cells which undergo meiosis to eventually form sperm
sustentacular cells
produce and secrete nutrients for the developing spermatozoa
interstitial cells
produce and secrete male sex hormones
rete testis
tubular network where spermatozoa mature
efferent ductules
spermatozoa are transported out of the testis and into the epididymis through a series of these
mature sperm cell
3 parts of a sperm cell and how many chromosomes
head, flagellum, acrosome(tip of head)
contains sperm in their final stages of maturation. Releases them to ductus deferens
ductus deferens
conveys sperm from the epididymis to the ejaculatory duct
path of ductus deferens
exits scrotum,
ascends along the posterior border of the testis,
penetrates the inguinal canal,
enters the pelvic cavity,
terminates at the ampulla where it joins the ejaculatory duct.
inguinal canal
passageway for the spermatic cord through the abdominal wall
ejaculatory duct
formed by the union of the ampulla of the ductus deferens and the duct of the seminal vesicle. empties into the prostatic urethra
seminal vesicles
secrete substance that contributes to the motility and viability of the sperm
assists in sperm motility and protects sperm from acid environment of vagina
bulbourethral glands
During sexual arousal...secretes a mucoid substance that coats the lining of the urethra to neutralize the ph of urine residue. also lubricates tip of penis.
conmmon tube for both the urinary and reproductive systems in male
3 regions of urethra and function
prostatic part of the urethra -
receives drainage from the small ducts of the prostate and two ejaculatory ducts

membranous part of the urethra -
external urethral sphincter located in this region - passes through urogenital diaphragm

spongy part of the urethra - extends from urogenital diaphragm to end of penis. bulbourethral glands attach to spongy part
urethral glands
secrete mucous into lumen of urethra
copulatory organ on the male reproductive system
spermatic cord
extends from the testis to the inguinal canal and consists of the ductus deferens, testicular artery and venous plexis, nerves, cremaster muscle, lymph vessels and connective tissue