Thursday, May 13, 2021

Embryology of eye mnemonic

Hello friends!

Here's is the simplest way to remember embryology of eye.

*Out of all layers (ecto,meso, endo), the endoderm doesn't contribute to the embryology of eye.
* Mesoderm forms - extraocular muscles
* Rest of the structures are derived from ectoderm.

* Surface ectoderm forms the structures which are visible to us from outside like Corneal epithelium
Conjunctival epithelium
 Lacrimal gland
 Lens ( important)

*Neuroectoderm forms neural structures like
Ciliary body ( not muscles)
Iris - both sphincter and dilator pupillae
Optic nerve

* Neural crest derivatives are 
Meninges of optic nerve
Schwann cells
Ciliary ganglion
Ciliary muscles 

For the remaining derivatives, watch the following picture.

Thank you.
Dr. Madhuri Reddy. 

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