Info From DITKI Flashcards
Define hyaline membrane disease
Type II pneumocytes do not produce enough surfactant in the terminal sack stage (wk. 24)
The respirotry diverticulum grows into what
The splanchnic mesoderm (which contributes to the parietal pleura)
What does a congenital diaphragmatic hernia result from
Failure of septum transversum and pleura-parietal fold to meet by wk. 6
What do the primitive heart cells arise from and where do they migrate through
The primitive streak and migrate through the splanchnic layer of LPM
What forms the L and R endocardial tubes
Blood islands from primitive heart cells
The L and R endocardial tubes fuse through what
Lat. Folding
What does cephalic folding do
Brings the heart and pericardium into the thorax
The first heart field gives rise to what
The LA RA LV and part of RV
The 2nd Heart field gives rise to what
The RV, BC and outflow tracts
What surrounds and makes up the amniotic cavity
Made up of ectoderm but surrounded by parietal somatic mesoderm
What makes up and surrounds the yolk sack
Made of endoderm
Surrounded by splanchnic visceral mesoderm
What does the intra-embryonic cavity GRT
Pleural, pericardial, and peritoneal cavities
What does the dorsal mesocadrium do and when is ti broken
Secures endocardial tube to parietal peritoneum
Broken during twisting of the heart tube
What two things form the outflow tract
The bulbus cordis and the truncus arteriosus
The bulbus cordis gives rise to what
The conus cordis and the RV
All are from the 2nd heart field
