The eye Flashcards
What does each eye consist of?
Each eye consists of an eyeball suspended inside a bony socket within the skull, named the orbit.
How many layers does the eye consist?
The eye consists of three layers enveloping two jelly filled compartments into which a lens is suspended.
What is the entrance of the eye provided by?
The entrance is provided by the pupil, which is a black central hole that is controlled by the iris.
What is the function of the pupil?
The pupil allows light to enter the eye and fall on the retina, ultimately allowing you to see.
What do the several eye adnexa do?
There are also several eye adnexa that essentially protect the eyeball, as well as help it to move and perform its functions.
What are the several eye adnexa?
Those are the eyelids, conjunctiva, lacrimal apparatus, and the seven extraocular muscles.
What is the main artery that supplies the eye?
The main artery supplying the eye is the ophthalmic artery
The main nerves of the eye are :
The main nerves are the optic (CN II), oculomotor (CN III), trochlear (CN IV), trigeminal (CN V), and abducens (CN VI) cranial nerves.
How does the main artery and main nerves reach the eye?
They reach the eye via three holes located at the back wall of the orbit.
