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Male Reproductive System Notes- MedSci
Terms in this set (37)
what 2 things do both male and female reproductive systems have?
gonads and accessory reproductive organs
what are primary sex organs responsible for producing gametes and secreting sex hormones (testes and ovaries)
what are the structures used to transport and nourish gametes prior to fertilization?
accessory reproductive organs
where are sperm formed?
testes (seminiferous tubules)
after production, where are sperm transported?
the rete testis --> epididymis
what is the path in which sperm in transported? ( 6 steps )
seminiferous tubules, rete testis, epididymis, ductus deferens, ampulla, ejaculatory duct, urethra, and urethral opening
How long is the epididymis?
how long does it take for the sperm to mature?
where does the sperm mature?
Where is the ampulla located?
where is the sperm stored before ejaculation?
when sexually stimulated, sperm are expelled into the
ejaculatory duct to the urethra
what are the three accessory glands sperm passes through?
seminal vesicles, prostate gland, and bulbourethral glands (Cowper's glands)
what produces the secretions that form semen?
semen _______________ and ____________ the sperm as they travel
dilutes and protects
seminal vesicles provide ____________, _____________ through muscular contraction, and clotting of ___________________
nutrition, movement, ejaculate
the prostate gland thins the ____________ for easier sperm movement and provides ______________ ___________ for energy
semen; citric acid
bulbourethral glands (cowper's glands) provide _______________ __________ to neutralize the urethra and _______________ the penis
alkiene fluids; lubricate
what are the two major external structures of the make up the male reproductive system?
the scrotum and penis
what is the flap of skin between the legs that contain the testes?
how do the scrotum and cremaster muscles control the temperature of the sperm?
they contract and pull the testes closer to the body if it is cold
what is the structure that delivers sperm into the female reproductive tract?
what is the penis composed of?
shaft (body), glans penis (tip), erectile tissue
the erectile tissue is the spongy internal tissue that fills with blood during ____________ _______________ causing ___________
sexual excitement; erection
during sexual intercourse what is ejaculated, propelling the sperm into the female reproductive tract?
what is the process of sperm production that begins with stem cells?
what are the sperm stem sells called?
what divides through meiosis to create 4 spermatids (one 23 chromosomes each)
what is the result of spermatogenesis?
what is the process in which the spermatids take the final shape of mature sperm?
as the sperm develop, they migrate closer to the ___________ of the ________________ __________, where they will eventually be released
lumen; seminiferous tubules
what are the three main sections of sperm?
head, midpiece, and tail
the head of the sperm contains
nucleus and acrosome
the acrosome contains ___________ to break into the egg cell during _____________
the midpiece of the sperm contains
mitochondria (provides energy for sperm to swim)
the tail of the sperm provides
what is another name for a sperm tail?
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