Flashcards in Eye Anatomy Deck (148)
What are the parts of the fibrous coat of the eyeball?
Sclera & cornea
What are the parts of the vascular coat of the eyeball?
What are the parts of the sensory coat of the eyeball?
What is the function of the sclera?
Gives attachments to the extrocular muscles
How much of the fibrous coat does the sclera make up?
What is the function of the cornea?
Allows light to enter the eye
How much of the fibrous coat does the cornea make up?
What is the function of the choroid?
Supplies blood to outer layer of retina
What is the function of ciliary bodies?
Produces Aqueous humor
Suspends the lens
What is the function of the iris?
Controls the diameter of the pupil & therefore the amount of light entering the eye
What is the function of the retina?
Has rods & cones which enable us to see
Where is vitreous humor found?
Where is AH found?
What is the structure of the lens described as?
Biconvex crystalline structure that is suspended from the ciliary body by suspensory ligaments
What is the function of the AH?
It maintains intraocular pressure
What is the function of VH?
Cushions the retina
What is the anterior segment further divided into?
Anterior & posterior chamber
Where is the Anterior chamber found?
In front of the iris
Where is the anterior segment found?
In front of the lens
Where is the posterior chamber found?
Behind the iris
Where is the posterior segment found?
Behind the lens
At the angle of the anterior chamber where does AH drain?
Via trabecular meshwork into the Schlemms canal
What are the names of the 3 entry/exit points in the bony orbit?
Superior orbital fissure
Inferior orbital fissure
Which paranasal sinuses is the orbit closely related to?
Which area of the orbit is the weakest?
Medial & inferior walls of the orbit
What cushions the eyeball in the orbit?
What is another name for the mucosa membrane on the inside of the eyelid?
What type of gland is associated with eyelashes?
What muscle is responsible for elevating the eyelid?
Levator palpebrae superioris