Body Cavity Flashcards
What does celo mean “coelomic”
cavity
list the order the cavities are formed
pericardial
pleural
abdominal pelvic
what is difference b/w endoderm and hypoblast
endoderm has all three germ layers, endoderm is first one formed
lateral plate mesoderm does what
splits into visceral and parietal lateral plate mesoderm
what has holes poked into it and forms into visceral and parietal lateral plate mesoderm
laterl plate mesoderm
what causes the lateral fold to occur
joined the front of the developing embryo
what is mesentary formed from
a blend of parietal and visceral
what are three major parts of intestines
foregut
midgut
hindgut
what is mesentary of midgut and hindgut
dorsal mesentary
only the forgut has what mesentary
dorsal and ventral mesentary
what happens if lateral fold isnt folded or fused properly (clinical correlation)
ectopia cordis
what is ectopia cordis
heart is outside of body cavity
If middle part of lateral fold (abdominal region) what is clinical correlation
gastroschisis
what can gastroschisis cause
intestinal damage
what happens with gastroschisis
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
what is omphalocele
midgut is herniated into connecting stalk (normally) but it doesn’t get sucked back in
in omphalocele are intestines protected from amniotic fuid
yes
what happens if ther is inferior body section defect (ventral body wall defect in pelvic region)
venbladder exstrophy
epispadius
cloacal exstrophy
what is cantrell pentaology
combine superior, middle and even inferior defect, so opening is from neck all the way down to rectum
is cantrell pentalogy fatal
no
is cantrell pentalogy fatal
no
what will septum transversum form
diaphragm
why is diaphgram innervated by cervical
it starts off in cervical region and gets pushed down by heart and lungs
septum transversum runs from what
very front to very back
the septum trasnversum almost totally divides embryo into two parts except for what
two little openings called the pericardioperitoneal canal
the front of canal is formed from what
septum transversum
septum trasnversum is formed from what
visceral lateral plate mesoderm
what eats away at septum transversum
lungs
what clings to lungs
a little visceral laterl plate mosoderm
what does the visceral lateral plate mosoderm that clings to lungs become
laterl plate pleura
do developing lungs ever meet
no
what does pericardial peritoneal folds form
pericardium (fibrous and pericardial)
visceral pericardium is formed from what
heart itself
what is innervation of visceral pericardium
cardiac plexus
what is arterial supply of visceral pericardium
coronary artery
the lungs go from back to (what direction)
front
what does lung coat itself with as it travels back to front
visceral lateral plate mesoderm
what does lung coat itself with as it travels back to front
visceral lateral plate mesoderm
how do you separate pleural and peritoneal cavities
diaphragm
why dont lungs go through diaphragm
the rest of the body starts growing faster, so the lungs are pushed up by everything else growing
what is diaphram formed from
septum transversum
what does cdh stad for
congenital diaphragmatic hernia
what is bochdalek formed from
posteriolaterl defects of diaphragm (intestines go through diaphram)
what is a morgani hernia caused by
anterior midline in xiphoid and ocatl margins
why is morgani hernias less severe
it goes through muscle, so the muscle prevents more from going through it
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
B
