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Embrology NBEO 1
Embrology
Question | Answer |
---|---|
all layers of the cornea except epithelium are from __ | neurocrest cells |
anterior border of the iris is formed by | neural crest |
CB epi, iris, epi, rpe are from __ | neural ectoderm |
cerebral cisterns develop from __ | subarachnoid space |
Corneal epithelium is from | ectoderm |
corpus callosum is derived from | telencephalon |
during the embryogenic development, ciliary muscle changes attachment from TM to __ | SS |
embryonic cornea is __ hydrated thatn adult thus it less transparen | more |
__ are first to differentiate | ganglion cells |
incomplete closure of the fetal fissure affects the __ | iris |
lacrimal sac develops __ , then the canaliculi, nasolacrimal duct | 1st |
____develops 1st in lens, then the lens vescicle | lens placode |
maturation of the fovea centralis occurs from __ | birth to 4 months |
myelinization of the optic nerve usually reaches the lamina cribosa by __ | 8 months |
__ give rise to sensory retina | neural ectoderm |
optic stalk develops from __ | diencephalons |
sclera and choroid are derived from __ | neural crest cells |
proximal CRA is derived from the __ | fetal hyaloid artery |
the first wave of neural crest cells forms the ___ | the corneal endothelium |
the glial tissue forming the meniscus of kuhnt is found in __ | the physiological cup |
lens placode comes from | surface ectoderm |
muscles of the orbit are from | mesoderm |
the neural groove becomes the ___ which develops into the prosencephalon,mesencephalon, rhombencephalon | neural tube |
__develops from the pigmented layer of the optic cup | RPE |
the skin, glands, and conjunctiva are all | ectodermal derivatives |
tarsal plate is derived from __ | mesenchymal tissue |
epithelium of upper and lower eyelids develops from | ectoderm |
two myoblast fuse in the fetus and form ___ | straited muscle |