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Childbearing & Family Nursing > Fetal Development > Flashcards

Fetal Development Flashcards

1
Q

Hemopoiesis =

A

at week 6

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2
Q

Fetal Heart Rate =

A

starts at week 3

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3
Q

2 Heart Chambers =

A

at 3-4 weeks

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4
Q

4 Heart Chambers =

A

at 4-6 weeks

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5
Q

Veins =

A

gives O2 and nutrients

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6
Q

Artery =

A

helps excrete toxins

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7
Q

How many umbilical arteries?

A

2

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8
Q

How many umbilical veins?

A

1

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9
Q

When do most women find out they are pregnant?

A

at 4-6 weeks

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10
Q

When can you see FHR on the monitor?

A

at 5 1/2 to 6 weeks after gestation

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11
Q

Ovulation =

A

14 days before period
ex: LMP on 28th minus 14 days = 14th of the month was when ovulation was

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12
Q

What weeks fall under the embryonic stage?

A

3 week
4 week
5 week
8 week

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13
Q

What weeks fall under fetal stage?

A

9 week
12 week
16 week
20 week
24 week
28 week
32 week
36 week
40 week

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14
Q

heart starts beating and blood circulates

A

3 weeks

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15
Q

2 chambers form; a 4 chamber heart
respiratory system begins

A

4 weeks

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16
Q

umbilical cord developed

A

5 weeks

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17
Q

gender distinguished

A

8 weeks

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18
Q

finger, toes, eyelids, and jaw evident

A

9 weeks

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19
Q

placenta complete
organ system complete
thumb sucking
fetus voids in amniotic fluid (11 wks)

A

12 weeks

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20
Q

meconium in bowel

A

16 weeks

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21
Q

hearing developed
quickening (mom feels FM)
lanugo covers the body
wake/sleep cycle evident

A

20 weeks

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22
Q

circulation visible
rapid brain growth
hiccups
vernix caseosa = thick
lecithin (L) present

A

24 weeks

23
Q

eyes open and close
process site and sound
taste buds developed
hair on head

A

28 weeks

24
Q

fingernails, toenails, and fingerprints evident
SubQ fat develops
vigorous FM
L/S ratio = 1:2:1 (lung maturity = 2:1)

A

32 weeks

25
Q

lanugo disappearing
amniotic fluid decreases
L/S ratio = 2:1

A

36 weeks

26
Q

fetal development complete!

A

40 weeks

27
Q

allows most oxygenated blood go to brain

A

shunts

28
Q

shunts around the liver… placenta does the work of the liver for the fetus. shunts blood around the liver

A

Ductus Venous

29
Q

right to left shunt… blood transfers from right atrium thru this to the left atrium. allows blood to flow directly from the R to L atrium

A

Foramen Ovale

30
Q

shunts blood around lungs… just enough to keep viable! create a circulatory pathway bypassing the lungs.

A

Ductus Arteriosus

31
Q

circulatory system =

A

1st system to develop

because the fetal lungs do not function for respiratory gas exchange, a special circulatory pathway is necessary

32
Q

before birth…

A

O2 taken to and from placenta

33
Q

after birth…

A

placenta is cut off and O2 transferred normally through body

34
Q

Fetal circulation allows the highest level of ______ and _________ not head, neck, and arms which enhance the ______________________ (head –> rump) development of the embryo/fetus

A

O2
nutrients
cephalocaudal

35
Q

substance/exposure causing abnormal development; results in structural or functional disabilities

A

Teratogens

36
Q

What are some examples of teratogens?

A
  1. androgens
  2. angiotensin converting enzyme
  3. cig. smoke
  4. cocaine
  5. coumarin
  6. cytomegalovirus
  7. diethylstilbestrol
  8. ethanol ( > 1 drink/day)
  9. iodides
  10. lead
  11. lithium
  12. mercury
  13. parvovirus
  14. phenytoin
  15. rubella
  16. syphilis
  17. tetracycline
  18. thalidomide
  19. toxoplasmosis
  20. valolporic acid
  21. varicella
  22. zika
37
Q

________________ secrete ________ to make sure that the corpus luteum remains viable.

A

Blastocyst
HCG

38
Q

corpus luteum secretes _______ and _________ the first _________ months of pregnancy.

A

estrogen
progesterone
2-3

39
Q

1st week of human development =

A

transport of embryo down uterine tube and into uterus

40
Q

____________ ___________ replication (cleavage) occurs as baby (zygote) is propelled towards the ________.

A

Mitotic
Cellular
Uterus

41
Q

morula =

A

16 cells

42
Q

trophoblast =

A

outer layer of cells

43
Q

blastocyst =

A

inner layer of cells – baby

44
Q

ovum =

A

conception –> 14 days

45
Q

embryo =

A

day 15 –> 8 weeks (organ forming & greatest vulnerability)

46
Q

fetus =

A

8 weeks –> birth

47
Q

surrounds the fetus in womb and protects fetus from injury and temperature change, permits musculoskeletal development

A

amniotic fluid

48
Q

structure containing blood vessels and attach fetus to the placenta during gestation

A

umbilical cord

49
Q

organ nourishing and maintaining the fetus through the umbilical cord

A

placenta

50
Q

a test of fetal amniotic fluid to assess for fetal Lum immaturity

A

surfactant L/S ratio

51
Q

a greasy deposit covering the skin of a baby @ birth

A

Vernix

52
Q

a pasty covering of dead cells and sebaceous secretions that protect the skin of the fetus

A

Caseosa

53
Q

fine, soft hair covers body and limbs of a fetus

A

Lanugo

Childbearing & Family Nursing (36 decks)

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