female reproductive quiz Flashcards

1
Q

which system is more complicated

A

yes

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2
Q

what are the gonads in females

A

the ovaries

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3
Q

what do the ovaries do

A

production and release of ova

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4
Q

what are ova

A

(sing is ovum) they are eggs

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5
Q

what is a difference between male and female gametes

A

ovaries have already produced all the eggs and more she will ever need before the baby is even born

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6
Q

about ho w many eggs do the ovaries produce

A

400,000

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7
Q

the female reproductive system needs to be able to accomodate…

A

rapid growth

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8
Q

if eggs are fertilized….

A

they begin to grow into a fetus

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9
Q

main components of female reproductive system

A

ovaries, fallopian tube, uterus, endometrium

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10
Q

what do ovaries do

A

2 per woman, hold n release 1 egg per month

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11
Q

what do the fallopian tubes do

A

normal site of fertilization

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12
Q

what does the uterus do

A

hollow organ that receives and nourishes a fertilized egg

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13
Q

what is the endometrium

A

lining of the uterus

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14
Q

what does the endometrium do if an egg is fertilized,

A

the endometrium catches it and holds on to it

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15
Q

what does the endometrium do if an egg is not fertilized

A

the endometrium sloughs off and is expelled

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16
Q

vulva

A

the external female reproductive organs

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17
Q

labia

A

outer folds of vulva

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18
Q

inside labia

A

urethral opening

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19
Q

urethral opening

A

where urine is removed

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20
Q

vaginal opening

A

located dorsally and extends to the cervix

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21
Q

what is the cervix

A

entrance to the uterus

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22
Q

what is the hymen

A

thin fold of mucosa separating the inner vagina from the vulva

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23
Q

menstrual cycle

A

monthly cycle of fertilization

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24
Q

three parts of menstrual cycle

A

menses, proliferative stage, secretory stage

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25
what days are menses
day 1-5
26
what days are proliferative stage
days 6-14
27
what days are secretory stages
days 15-28
28
what happens in menses
the endometrium sloughs off | bleeding as the detached tissue passes through the vagin
29
on average, females lose how much blood in menses
50-150ml
30
what happens in proliferative stage
-increased estrogen leads to gradual thickening of endometrium
31
what happens on the 14th day of the menstrual cycle
LH levels spike, leading to ovulation
32
what is ovulation
release of an egg from one of the ovaries
33
what happens in secretory stage
progesterone is released, causing endometrial tissue to become full of nutrients
34
what can happen to the egg in the secretory stage
if fertilized: embeds in the endometrium | if not: endometrium disintegrates at the end of stage
35
usually estrogen is a
GnRH inhibitor
36
what does it mean that estrogen is a GnRH inhibitor
causes less estrogen to be produced
37
how does estrogen work
in a negative feedback loop
38
what switch occurs on what day
day 12, estrogen causes GnRH production, rather than inhibiting it
39
day 12 switches what
the negative feedback loop into a positive feedback loop
40
day 12 causes a spike in what
the LH and FSH necessary for ovulation
41
do the levels of estradiol, FSH, LH, progesterone vary across the menstrual cycle
yes
42
how do contraceptives work
trick the body into thinking progesterone levels are or alter estrogen levels
43
high levels of progesterone and or estrogens ....
stop GnRH from being produced, stops LH and estradiol from being made
44
what is ovulation
release of an egg from an ovary
45
how many of the ovaries release an egg each month
1
46
misconceptions about ovulation
- people think that the ovaries alternate months | - people think the egg is released into the fallopian tube
47
correction to "people think that the ovaries alternate months"
it is random which ovary releases an ovum in a given month
48
correction to "people think the egg is released into the fallopian tube"
- egg is released into gap between ovary and fallopian tube | - "fingers" called fimbriae pull the ovum into the fallopian tube
49
what happens in tintercourse
sperm released into vagina
50
what do sperm do in vagina
seek to find the egg and fertilize it
51
short window of fertilization (egg)
egg must be fertilized 24 hours from being released from the ovary
52
short window of fertilization (sperm)
sperm can only survive in the acidic vagina for 72 hours
53
which days the highest probability of pregnancy
the days shortly before and after ovulation
54
where does fertilization usually happen
in the fallopian tubes
55
what happens after fertilization in the fallopian tube
the egg travels and implants in the endometrial layer of the uterus
56
what is ectopic pregnancy
when a fertilized zygote implants in the fallopian tube instead of the uterus and grows there
57
ectopic pregnancy is the
leading cause of maternal death in pregnancy
58
what happens once the first sperm reaches the egg
a fast block occurs to prevent polyspermy
59
what is polyspermy
fertilization by more than one sperm
60
what happens in the fast block to prevent polyspermy
release of K+ ions changes the charge inside the egg, preventing other sperm from entering
61
what happens after fertilization
newly formed 2n zygote begins to divide rapidly into many cells
62
the many cells the zygote is divided into
forms a blastocyst
63
what else forms after fertilization
a placenta
64
what does a placenta allow
easy transfer of blood and nutrients from the mother to the blastocyst
65
what happens over the 40 weeks of pregnancy
the zygote slowly divides, grows, and reshapes
66
when does an embryo form
3-8 weeks
67
when fetus form
8-40 weeks
68
changes to a women's body are triggered
by release of new estrogens, specifically estriol
69
changes to a woman's body
- increasing blood volume by 50% - growing placenta - increase respiratory, urinary, pulse rates - release of relaxin
70
what will growing placenta do
filters blood for and nourishes the fetus
71
why does pregnancy increase respiratory, urinary, pulse rates
pregnant women must provide oxygen and remove wastes for 2 organisms
72
what is relaxin
protein hormone
73
what does relaxin do
makes joints and ligaments in the abdomen relax.. allows stretching of the abdomen
74
when is baby ready
after 40 weeks