10 Questions
What contributes presumptive neuroblasts to ganglionic primordia in embryonic facial development?
Placodes adjacent to ganglionic primordia
Which section plane passes through the trigeminal ganglion primordium?
Section plane E
What do the initial ganglionic primordia result from in embryonic facial development?
Cords of neural crest cells
What alters the nature of the first two visceral arches in embryonic facial development?
Facial prominences from other visceral arches
Which structures are formed by the growth and fusion of upper facial prominences in embryonic facial development?
Primary and secondary palates
What are ectodermal thickenings called that form adjacent to distal ends of ganglionic primordia?
Placodes
Which cells migrate into previously crest cell ganglionic primordia during embryonic facial development?
Placodal neurons
What do the facial prominences initiate in embryonic facial development?
"Outgrowths or swellings"
What is illustrated in figures E and F regarding embryonic facial development?
Distribution of crest and placodal neurons
What contributes to the formation of trigeminal (V) nerve placodes in embryonic facial development?
Ectodermal thickenings adjacent to ganglionic primordia
Explore the processes and abnormalities in human development as discussed in Chapter 2. Learn about cell migrations, interactions, growth, differentiation, and common malformations. Delve into the origin of facial tissues after fertilization.
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