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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 |