Eye

Question	Answer
is an almost spherical organ that measures about 2.5 cm	Eye
3 principal layers form the wall of the eye.	fibrous tunic vascular tunic *retina
The external layer of the eye wall	Fibrous tunic
The fibrous tunic is composed of:	Sclera Cornea
Most of the fibrous tunic is the tough sclera, a part of the outer layer that is called:	"White" of the eye.
-provides eye shape -protects internal components -The attachment site for extrinsic eye muscles -Dura mater surrounding optic nerve	Sclera
is a convex, transparent structure that forms the anterior 1/6 of the fibrous tunic	Cornea
The structural continuity between the cornea and sclera is called:	Limbus
The structural continuity between the cornea and sclera is called:	Limbus
Inner simple squamous epithelium Outer stratified squamous epithelium, corneal epithelium *avascular	Cornea
nutrients and oxygen from lacrimal gland fluid	External Corneal epithelium
obtains needed gases and nutrients from the fluid in the anterior chamber	Internal epithelium
The convex shape refracts (bends) light rays coming into the eye.	Cornea

Resource summary

	Created by mgoodman73 over 12 years ago