Term
| what is corpora cavernosa |
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Definition
mass of erectile tissue
surrounded by thick fibrous layer that limits swelling during increased blood flow-increase effectiveness of erection
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Term
| what is corpus spongiosum |
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Definition
the third part of the erectile tissue
no think covering and less effetive erection
trasmits the urethra
end is the glans penis |
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Term
| describe the process of erection |
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Definition
blood flow increases
engorges capillary beds of erectile tissue
tissue presses outward against superficial veins
veins close off and trap blood in erectile tissue |
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Term
| explain what cryptorchildism is |
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Definition
failure for the testes to descend thru the inguinal canal into the scrotum
risks injury and infertility
fix with minor surgery |
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Term
| what controls sperm production and where |
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Definition
| FSH controlls sperm production in tubules of the testis |
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Term
| where does the maturation of spem occur |
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Definition
| occurs in the epididymis, coiled tube of 15-18 feet that lies against the testis and recieves the efferent tubules from the testis |
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Term
| what causes male sex characters at puberty |
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Definition
| formation of gonadotrohin release hormone GRH in the hypothalmus which then secretes FSH, LH |
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Term
| in a male, what does FSH and LH do? |
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Definition
FSH: causes spermatogenesis
LH: causes testosterone production |
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Term
| what is a normal semen sample |
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Definition
it is 5-15 ml in volume
contains 75 million to 400 million sperm |
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Term
| what are considered to be "equals/sames" in males and females... have same functions |
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Definition
labia majora and male scrotum
clitoris and corpus spongiosum |
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Term
| how is the vagina lubricated |
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Definition
from down flow of mucus from the uterus and uterine cervix
during intercourse: major and minor vestibular mucous glands |
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Term
how is penetration achieved
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Definition
uterus is displaced and penile insertion bypasses it, entering the
posterior fornix of the vagina pushing up toward the abdominal cavity
also by exra fold.. pouch of douglas |
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Term
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Definition
sperm: 48-72 hours in female reporductive tract
egg: 24 hours after leaving follicle
72 during ovarian cycle where intercourse can result in fertilization of egg |
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Term
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Definition
LH: in theca cells causing them to produce testosterone then coverted to follicle cells to estrogen
FSH: development of ocarian follicles
**FSH and LH build up and release due to increase estrogen and gonadotrophs |
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Term
| what causes ovulation of an egg |
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Definition
when FSH and LH are inhibited they contrinue to produce and build up
mid cycle: sudden release of LH and FSH causing rapid accumulation of follicular fluid ...ovulating egg |
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Term
| why is 6 weeks an important time in pregnancy |
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Definition
the placenta is increasing its need for progesterone and does not yet make enough on its own
critical time for miscarriages to occur |
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