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Reproductive System
A&P
17
Anatomy
Undergraduate 3
12/04/2014

Additional Anatomy Flashcards

 


 

Cards

Term
what is corpora cavernosa
Definition

mass of erectile tissue

surrounded by thick fibrous layer that limits swelling during increased blood flow-increase effectiveness of erection

 

Term
what is corpus spongiosum
Definition

the third part of the erectile tissue

no think covering and less effetive erection

trasmits the urethra

end is the glans penis

Term
describe the process of erection
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

Term
explain what cryptorchildism is
Definition

failure for the testes to descend thru the inguinal canal into the scrotum

risks injury and infertility

fix with minor surgery

Term
what controls sperm production and where
Definition
FSH controlls sperm production in tubules of the testis
Term
where does the maturation of spem occur
Definition
occurs in the epididymis, coiled tube of 15-18 feet that lies against the testis and recieves the efferent tubules from the testis
Term
what causes male sex characters  at puberty
Definition
formation of gonadotrohin release hormone GRH in the hypothalmus which then secretes FSH, LH
Term
in a male, what does FSH and LH do?
Definition

FSH: causes spermatogenesis

LH: causes testosterone production

Term
what is a normal semen sample
Definition

it is 5-15 ml in volume

contains 75 million to 400 million sperm

Term
what are considered to be "equals/sames" in males and females... have same functions
Definition

labia majora and male scrotum

clitoris and corpus spongiosum

Term
how is the vagina lubricated
Definition

from down flow of mucus from the uterus and uterine cervix

during intercourse: major and minor vestibular mucous glands

Term

how is penetration achieved

 

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

Term
Sperm and Egg life span
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

Term
LH and FSH in females
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

Term
what causes ovulation of an egg
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

Term
why is 6 weeks an important time in pregnancy
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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