Flashcards in 9.30 Germ Layers 2 Deck (19):
where do the bones in the face come from?
neural crest cells
to make major vessels, angioblasts proliferate and assemble into loose structures called _______ ________. These will only form into blood vessel tubes with signals from the _________.
myocardial cells that form the heart muscle arise from the __________ ___________ in the cariogenic area
blood vessel formation achieved by branching and extension from the primary vessels
most bone in the body comes from which germ layer?
a signal from the _______ is essential for heart development
endothelial precursor cells (called ________), within the __________, arise
failure of complete regression of the yolk sac – common birth defect, which is an outpouching of the ileum at the end of the small intestine.
the skeletal muscles come from the _________ (region of somite)
skeletal muscle cells are ____-nucleate
Signals from ______ are required for liver differentiation and development
folding of the body wall leaves the heart outside of the chest.
in lateral folding, the endoderm becomes surrounded by the ________ _________ to form the gut tube
the muscles of the face originate from the ________ in the head region
visceral organs lie outside of body wall
Blood vessel formation from individual angioblasts
the endothelial cells that are the inner lining of blood vessels come from which germ layer?
_______________ (process name) is only responsible for making the major blood vessels in the embryo