Dr. Lobo Development of nervous System Flashcards
the formation of the neural tube is induced by what
the notocord
does the notocord give rise to any component of the nervous system
no! it doesn t actually turn into anything it just induces the neural cord
what enduces ectoderm to become neuroectoderm
the notocord
what germ layer is the neural tube made out of
ectoderm
when do the anterior and posterior neuropore close
anterior = 25th day posterior = 27th day
what causes development of the ventral part of the neural tube
sonic hedge hog
what causes development for the dorsal part of the neural tub
hox genes 2
are abnormal levels of retinoic acid dangerous
yes, teratogenic
what are the 3 primary dilations of the neural tube
prosencephalon, mesencephalon, rhombencephalon
what forms the forebrain , midbrain and hind brain
prosencephalon = forebrain mesencephalon = midbrain rhombencephalon = hindbrain
cerebellum , pons and medulla make up what
hind brain
the forebrain divides into what 2 structures
telencephalon and diencephalon
the hindbrain divides into what 2 structures
metencephalon and myelencephalon
how is lateral ventricle formed
cavity of telencephalon
how is 3rd ventricle formed
diencephalon
