Embryo Flashcards
Eye begins to from from wall of
Diencephalon, prosencephalon
Mesoderm gives rise to
Dermis, circulatory system, CT. EOMs Endothelium of blood vessels Orbicularis oculi Levaror palpebrae Muller muscle
Ectoderm
Important for development of ocular structures.
Development of CNS
Epidermis
Skin, hair nails
Optic groove from neuroectoderm forms
Optic stalk and optic vessicle which form the optic cup
During formation of optic cup what structure is the last to close?
Embryonic fetal fissure
Optic vessicle becomes the
Optic cup
Optic stalk becomes the
Optic nerve
Inner layer of optic cup becomes the
Neural retina, NPCE and posterior pigment layer of the iris.
Which layer of retina develops first
RPE
Outer layer of optic cup becomes
RPE, outer pigmented ciliary body epithelium and the anterior iris epithelium.
The inverted Y sutures are from
Secondary lens fibers
Surface ectoderm forms
Corneal epithelium
Conj epithelium
Eyelid epithelium
Lens
Meibomian, Zeis, Moll, Krause and wolfring
Lacrimal gland, lacrimal sac , duct, canaliculi, caruncle
Neural ectoderm
Neural retinal, RPE and neuroglia
Epithelium of CB and iris
Sphincter and dilator muscle ,
Optic nerve fibers
Neural crest
Corneal inner layer, TB
Iris and CB stroma
Sclera and choroid
Vitreous
Pre-operational stage of child
2-7 years
Egocentrism
Concept of conservation
Understanding of reversibility
