Miracle of Life Flashcards

1
Q

First organized form of primitive life

A

tiny protozoan

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2
Q

Where does the tiny protozoan live and what does it use for movement

A

sea water; cilia and flagella

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3
Q

basic unit of life, how it reproduces, number of chromosomes per cell

A

cell; cell division; 46

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4
Q

where are eggs made and how many eggs are present in them

A

ovaries, 250,000 eggs

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5
Q

event wherein follicles which enclose the eggs rupture

A

ovulation

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6
Q

how will the follicles rupture?

A

follicles will swell with liquor folliculae

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7
Q

where will the egg wait for the sperm after follicular rupturing

A

fallopian tube

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8
Q

outermost fringes of fallopian tube brush swollen follicle and which searches for newly-released egg

A

fimbriae

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9
Q

size of newly released egg

A

a grain of sand

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10
Q

how the egg is moved from the fallopian tube to the uterus

A

muscle contractions

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11
Q

no. of hours in which the newly-released egg must be fertilized before disintegrating

A

24 hours

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12
Q

control male and female reproductive cycles/ reproductive ability

A

sex hormones

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13
Q

male organ which produces sperm

A

seminiferous tubules in testicles

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14
Q

where sperms are stored

A

epididymis

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15
Q

produces lubricating fluid to aid in sperm’s journey

A

cowper’s gland

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16
Q

produces an alkaline fluid which protects sperm

A

prostate gland

17
Q

composition of semen

A

sperm + lubricating fluid from cowper’s gland + alkaline fluid from prostate gland

18
Q

route of sperm from production to ejaculation (and what each organ does)

A

seminiferous tubules (sperm production) -> epididymis (sperm storage) -> vas deferens -> seminal vesicle (secrete sugars) -> prostate gland (alkaline fluid) -> cowper’s gland (lubricant) -> urethra

19
Q

keeps the testicles suspended and away from body heat

20
Q

connects each nurse cell to over 150 sperm cells throughout the tubule; enable nurse cells to feed and protect maturing sperm

21
Q

give 5 causes of sperm deformity

A

any of these: slight elevation of temperature, environmental conditions, overcrowding, stress, smoking, chemical pollution of air and water, occupational hazards, radiation, poor nutrition, modern clothing

22
Q

silent languages

A

desire and physical love (eyes, skin)

23
Q

barriers to fertilization

A

high percentage of defective sperm has lowered odds of fertilization, acidic environment of vagina, femal immune system will destroy them, try to ertilize the first round object they find

24
Q

this is secreted by the cervix during ovulation which provides tiny channels directing the spem to egg

25
fertilized egg that has started to divide
zygote
26
how many days will it take for the blastocyst to be implanted at the uterine lining
5 days
27
provides nourishment to the embryo, connected to uterine lining
placenta
28
what happens 5 weeks after fertilization
nose of embryo takes shape
29
in how many weeks can you call the embryo a fetus
10 weeks
30
actively turning inside the mother (what week)
16 weeks
31
(what week) can the fetus bring its hands together and suck its thumb?
14 weeks
32
cleavage of human embryo
holoblastic rotational