Development Of Special Senses Flashcards
Where does the eye develop
Diencephalon
Neuroectoderm will differentiate into
Retina
Posterior layer of the iris
Optic nerve
Surface ectoderm forms what
Lens of the eye
Corneal epithelium
Neural crest cell will differentiate into what
Choroid
Sclera
Corneal endothelium
at what week the optic grooves are seen
4th week
The optic groove will invaginate into what
Optic vesicles
Optic vesicles will induce development of what
Lens placode (primordium
What is a local thickening in the embryonic ectoderm
Placode
When the lens placode will invaginate into
Lens pit
Lens vesicle
Neural retina is what type of layer
Inner thicker layer
Outer layer thinner layer will come from the
Retinal pigment epithelium
Faith of the optic stalk
Optic nerve
What regulates the differentiation of the eye and the optic stalk
Pax6 - eyes
Pax 2 - optic stalk
What occurs if the choroid fissure fails to close
Coloboma
Cat’s eye
What can result from intrauterine infections
Microphthalmia
Absence of one eye
Anopthalmia
Affected with pax 6
Congenital ….
Where does the pinna proliferate from
Pharyngeal arches 1 and 2
Which part of the ear is the first to develop
Otic placode
Otic placode will invaginate into
Otic pit
Otic pit when fused will form
Otic vesicle
What are the part of the otic vesicle
Dorsal ultricular
Ventral Saccular
What happens at the 6th week of development
Cochlear duct will form organ of corti
Which is derived from the first pharyngeal pouch
Tubo tympanic membrane
