12. Germ layer derivatives Flashcards
List the 3 primary brain vesicles
Prosencephalon
Mesencephalon
Rhombencephalon
List the 5 secondary brain vesicles
Telencephalon Diencephalon Mesencephalon Metencephalon Myelencephalon
Somatic and splanchnic mesoderm are also known as _ and _
parietal
visceral
The neural tube develops from the _
ectoderm
The notochord develops from the _
mesoderm
Paraxial columns form the _
muscles and cts
The _ period is highly sensitive to structural abnormalities
embryonic period (3-8 weeks)
Weeks 4 to 8 are characterized by 4 things:
craniofacial development
cardiac development
somite differentiation
more folding
The 1st pharyngeal arch utilizes CN _
5
_ are grooves between arches
Pharyngeal pouches
Somites form the _, _, and _
dermatome
myotome
sclerotome
Pharyngeal pouches are derived from the _ and are grooves between arches
endoderm
The 2nd
3rd
4th arches utilize CN _
7
9
10
The tongue is developed from CNs _
5
7
9
10
1st arch forms _ and _
muscles of mastication
meckel’s cartilage
