Embology 3 Flashcards
what does foldin of the endoderm give rise to
foregut, midgut ane dhind gut
what does the fore gut give rise to
lung bud
what does the lung bud deveop into
trachea and lungs
where does the pluearl form from for the lung
lateral plate mesoderm
at what age does the osopgus form
4 weeks
where does hte primitive foregut arrise from
endoerm
where is the trachea in relatoin to the oesophagus
anterior
what seperates the trachea and the esophougs
oesphagotraceal septum
fistula
abnormal passage between 2 epitheliszed tubes or surfaces
atreisiae
a condition in whch an orifies or passage in the body is closed or absent
what tissue becomes the visceral pluera
splanchnic
what tissue becomes the pariental pleuar
somatic
space between splanic and somatic mesoderm which has not formed yet
pericardoperitoneal canal
what grows to seal fof the pluarl cavity
pleuropericardial
what are the 5 stadges of development In lung buds
embroyoinci, pseudoglandular, canalicular, saccular, aveolar
what is the emyoyic stadge
treacha, right and left bronci, segmental bronchi
what ar teh pseudoglandular phase
termial bronchiles pulmonary artery and veins
what is the canalicualr phase
respiratory bronchoii, alveolar ducts, primitive alveoli, alveoliar cappilaryes
what is the saccular phase
gas exchange, alveoliwhat i
what is the alveolary phae
separtiona nd multiplactio of alveol
what do respiraty destess syndrom often has lots of what type of cell tissue
hyaline
lung angensis
failure of a lung bud to branch and develop
teragens
exspore to anything during pregancy that the feoutus should not be exposed to
pulmoary hypoplasia
abnoromaly low number/ size of bronchopulomar segems/ alveoli
septum tranversium
arrises from cardiomesodre and migrades downwards to from the cnetal tendon of the diaphroam
pleuroperineal folds
grow in from body wall to fuse the septum transversum - seal of pleuar cavits form perinal cavitse
skeletal musles
grows in from body wall to cover the plurpertnotal folds, forms muscular part of the diaprham
dorsal mesentery of oesophagus
attaches embryonic oesophagus to the posterior thoracic wall, skeletal muscle ingrowth from body wall, then covers dorsal mesentery of each side to form left and right diapthatic cuvre
hernia
protusion of an organ through a structure or musles that contains it
foramen of Morgagni
incomplete fusion of septum tranverseum and sternum and anterior ribs
foramen of bochdalek
failure of pleural neal fold to form, resulting in hernia towards the posterior allowing organs to gain entry
