Histology-Eye Flashcards
3 layers of the eye
1) Fibrous (cornea & sclera) 2) Uvea (iris, ciliary body, choroid) 3) Retina
Main refractive structure of they eye
Cornea
White of the eye continuous with the dura matter that covers the optic nerve
Sclera
Contains smooth muscle that adjusts the size of the pupil
Iris
Contains smooth muscle that adjusts the size of the lens
Ciliary body
Vasculature that nourishes the outer layers of the retina
Choroid
3 chambers of the eye
1) Anterior (aqueous humor) 2) Posterior (aqueous humor) 3) Vitreous (vitreous humor)
Identify the labeled structures of the eye:
1) Sclera 2) Ciliary body 3) Optic Nerve 4) Vitreous chamber 5) Lens 6) Posterior chamber 7) Iris 8) Anterior chamber 9) Cornea
Identify the labels structures of the eye:
1) Cornea 2) Eyelid 3) Palpebral Conjunctiva 4) Fornix 5) Ciliary body 6) Bulbar Conjunctiva 7) Ciliary process 8) Lens 9) Iris 10) Anterior chamber 11) Vitreous space *Note how the bulbar conjunctiva makes a u-turn at the fornix to become to palpebral conjunctiva
In what structure at the ciliary muscles contained?
Ciliary body
What connects the ciliary body to the lens?
Zonular fibers from the suspensory ligament of the lens connect to the ciliary process.
What are the different layers of the cornea?
1) Corneal epithelium 2) Corneal stroma 3) Corneal endothelium
Corneal epithelium sensory innervation
V1 (opthalmic nerve)
Part of cornea that is only collagen
Stroma. It is also avascular so you can see through it
Damage to this layer of the cornea causes swelling and opacities in the cornea.
Corneal endothelium