Flashcards in Ch_41_Reproductive_System Deck (77)
scrotum physical description
smooth muscle sac that houses testes away from body
why is scrotum elastic?
regulate temperature - further from body cools testes, close to body warms testes
what temperature does sperm develop at?
94 - 95 degrees F
where are sperm created?
testes tubules where meiosis occurs
number of sperm created each day
100 - 150 million
where in testes is testosterone produced?
what stimulates testosterone creation
what gland does FSH get released from
testes are covered with _ so host will avoid injury to them
neurons sensitive to pressure
top of testes
number of days of sperm production located in Epididymis
what do the vas deferens connect
epididymus and prostate gland
T/F vas deferens are sperm ducts?
how do Vas Deferens transport sperm from epididymus to prostate gland?
smooth muscle contractions
What is cut by a vasectomy?
what does the Seminal Vesicles gland release into semen
fructose for nutrition for sperm, prostaglandins for stimulating smooth muscle contraction that propels sperm
what does the Prostate Gland release into semen
why does the Prostate Gland release bicarbonate ions into semen?
the inside of a vagina is very acidic to kill pathogens, the bicarbonate ions nuetralize the acidity so that sperm can survive
how does the Prostate Gland help transport sperm through urethra?
besides reproduction, what other major function does Prostrate Gland regulate?
What does the Bulbourethral Gland secrete and where?
thick mucous, urethra
Why is thick mucous released in the urethra by the Bulbourethral Gland
neutralize vaginal acids and urethra lubrication so that semen can exit easier
male external genitalia for delivering semen into vagina
penis tube semen moves through
how is the penis erected when stimulated?
erectile tissues on sides of penis filled with blood
What is on the sperm head?
Acrosome and DNA
What is on the sperm neck?
another word for sperm tail
what is the sperm flagellum made out of
protein microtubule fibers
The female sperm is _, and the male sperm is _
What is produced at the ovaries?
where are the ovaries located?
what is the approximate size of ovaries?
where does meiosis in ovaries occur?
typical rate of egg production for ovaries
what hormone is created in the follicle cells?
what does the emptied follicle chamber become
What hormone is created in the Corpus Luteum
Oviducts another term
What do the Fallopian Tubes connect
ovary and uterus
How long are typical Fallopian Tubes?
What are the ends of Fallopian Tubes called?
What do Fallopian Tubes fimbriae resemble
The Fallopian Tubes, Ovaries, or Uterus is where fertilization usually occurs?
What is cut in tubal ligation
Where is the uterus found?
Approximately what size is the uterus
Common word for uterus
The Fallopian Tubes, Ovaries, or Uterus is where placenta attachment occurs?
The fertilized egg receives nutrition from _ while placenta grows
This lining is lost every month in menstruation if no pregnancy
The openining known as the _ is between the uterus and vagina
T/F Before sperm can fertilize the egg, it must pass the cervix
How large does the cervix become during labor
The female organ used in sexual intercourse
Where does the vagina end internally
at the cervix, where it is seperated from uterus
_ and _ line the vagina
acid releasing cells and mucous glands
tissue layers that protect outside of vagina
small erectile organ with many nerve endings that is used for sexual stimulation
four main hormones that regulate menstrual cycle
FSH, LH, progesterone, and estrogen
what does FSH stand for
Follicle Stimulating Hormone
what does LH stand for
which gland secretes FSH
what structure produces estrogen
what structure produces LH
Ovulation stimulation synopsis from FSH release
pituitary releases FSH ->increased FSH concentration in blood stimulates ovary follicles to create estrogen -> increased estrogen concentration causes pituitary to stop releasing FSH and release LH -> LH leads to ovulation
Corpus Luteum is a temporary or permanent gland
what becomes the Corpus Luteum
the vacated follice that egg departed from
What hormone does Corpus Luteum release
menstruation cycle from egg release
egg released from follicle -> vacated follicle becomes Corpus Luteum -> Corpus Luteum releases progesterone -> progesterone stops pituitary and ovary glands hormone release for a period of time giving chance for fertilization of egg -> egg not fertilized -> Corpus Luteum disintegrates -> progesterone concentration decreases -> pituitary no longer inhibited by progesterone -> FSH released -> endometrium removed
pregnancy commencement from egg release
egg released from follicle -> vacated follicle becomes Corpus Luteum -> Corpus Luteum releases progesterone -> progesterone stops pituitary and ovary glands hormone release for a period of time giving change for fertilization of egg -> pregnancy -> progesterone concentration stays high for pregnancy duration
permanent forms of contraception
Tubal Ligation, Vasectomy
temporary forms of hormonal contraception
injections and birth control pills
devices used for contraception
male/female condoms, daiphragm, IUD