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Embryology > Body Cavity > Flashcards

Body Cavity Flashcards

1
Q

What does celo mean “coelomic”

A

cavity

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2
Q

list the order the cavities are formed

A

pericardial
pleural
abdominal pelvic

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3
Q

what is difference b/w endoderm and hypoblast

A

endoderm has all three germ layers, endoderm is first one formed

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4
Q

lateral plate mesoderm does what

A

splits into visceral and parietal lateral plate mesoderm

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5
Q

what has holes poked into it and forms into visceral and parietal lateral plate mesoderm

A

laterl plate mesoderm

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6
Q

what causes the lateral fold to occur

A

joined the front of the developing embryo

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7
Q

what is mesentary formed from

A

a blend of parietal and visceral

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8
Q

what are three major parts of intestines

A

foregut
midgut
hindgut

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9
Q

what is mesentary of midgut and hindgut

A

dorsal mesentary

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10
Q

only the forgut has what mesentary

A

dorsal and ventral mesentary

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11
Q

what happens if lateral fold isnt folded or fused properly (clinical correlation)

A

ectopia cordis

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12
Q

what is ectopia cordis

A

heart is outside of body cavity

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13
Q

If middle part of lateral fold (abdominal region) what is clinical correlation

A

gastroschisis

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14
Q

what can gastroschisis cause

A

intestinal damage

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15
Q

what happens with gastroschisis

A

body wall closure failure in abominal region, intestinal loops may herniate into amniotic cavity, exposure to amniotic fluid can harm and the intesines may twist around each other

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16
Q

what is omphalocele

A

midgut is herniated into connecting stalk (normally) but it doesn’t get sucked back in

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17
Q

in omphalocele are intestines protected from amniotic fuid

A

yes

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18
Q

what happens if ther is inferior body section defect (ventral body wall defect in pelvic region)

A

venbladder exstrophy
epispadius
cloacal exstrophy

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19
Q

what is cantrell pentaology

A

combine superior, middle and even inferior defect, so opening is from neck all the way down to rectum

20
Q

is cantrell pentalogy fatal

A

no

21
Q

is cantrell pentalogy fatal

A

no

22
Q

what will septum transversum form

A

diaphragm

23
Q

why is diaphgram innervated by cervical

A

it starts off in cervical region and gets pushed down by heart and lungs

24
Q

septum transversum runs from what

A

very front to very back

25
Q

the septum trasnversum almost totally divides embryo into two parts except for what

A

two little openings called the pericardioperitoneal canal

26
Q

the front of canal is formed from what

A

septum transversum

27
Q

septum trasnversum is formed from what

A

visceral lateral plate mesoderm

28
Q

what eats away at septum transversum

A

lungs

29
Q

what clings to lungs

A

a little visceral laterl plate mosoderm

30
Q

what does the visceral lateral plate mosoderm that clings to lungs become

A

laterl plate pleura

31
Q

do developing lungs ever meet

A

no

32
Q

what does pericardial peritoneal folds form

A

pericardium (fibrous and pericardial)

33
Q

visceral pericardium is formed from what

A

heart itself

34
Q

what is innervation of visceral pericardium

A

cardiac plexus

35
Q

what is arterial supply of visceral pericardium

A

coronary artery

36
Q

the lungs go from back to (what direction)

A

front

37
Q

what does lung coat itself with as it travels back to front

A

visceral lateral plate mesoderm

38
Q

what does lung coat itself with as it travels back to front

A

visceral lateral plate mesoderm

39
Q

how do you separate pleural and peritoneal cavities

A

diaphragm

40
Q

why dont lungs go through diaphragm

A

the rest of the body starts growing faster, so the lungs are pushed up by everything else growing

41
Q

what is diaphram formed from

A

septum transversum

42
Q

what does cdh stad for

A

congenital diaphragmatic hernia

43
Q

what is bochdalek formed from

A

posteriolaterl defects of diaphragm (intestines go through diaphram)

44
Q

what is a morgani hernia caused by

A

anterior midline in xiphoid and ocatl margins

45
Q

why is morgani hernias less severe

A

it goes through muscle, so the muscle prevents more from going through it

46
Q

a 19 year old man… which is the following is most likely about pericardium?
A. all 3 layers of pericardium are derived directly from pleuropericardial folds
B. visceral pericardium is innervated by same nerves that innervate the heart
C. pleuropericardial folds remain unfused
D. defects in pleuropericardial folds result in anterior wall defects
E. pericardium is formed by septum only

A

B

Embryology (16 decks)

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