Anatomy And Physiology Of The Eye Flashcards
The orbits
A bony cavity in the skull designed to protect the eyeball from injury.
Orbital walls are formed by what 7 bones?
Ethmoid Lacrimal Frontal Sphenoid Maxillary Palatine Zygomatic
Foremen, canals, and Fissures
Optic Foramen or Canal
Infraorbital Canal or Fissure
Orbital Foramen
Superior Orbital Fissure
Adnexa contains:
Front part of the eye
Lids
Conjunctiva
Lacrimal Apparatus
Pre-Corneal Film
LIDS:
What are the 4 layers of the lids ?
Skin
Muscle
Tarsal plates
Conjunctiva
LIDS:
What are the four muscles that are a part of the layer section of the lids?
Levator
Muller
Riolan
Orbicularis
LIDS:
What are the three glands that are part of the lids?
Zeis
Moll
Meibomian
LIDS:
What are the functions of the lids?
Block light during sleep Protect the eye Remove foreign matter Secrete tear film component Spread tear film over the cornea
CONJUNCTIVA:
What are the sections of the conjunctiva?
Palpebral
Bulbar
Fornix/cul-de-sac
CONJUNCTIVA:
What are the layers of the conjunctiva?
Epithelium: Goblet cells
Substantia Propia/Stroma

CONJUNCTIVA:
What are the functions of the conjunctiva?
Protect the eye.
Prevent foreign bodies from entering the orbit.
Secrete to your film component - mucous.
Reduce friction between the lids and globe. 
LACRIMAL APPARATUS:
what are the glands of the lacrimal apparatus?
Main lachrymal Gland
Accessory lacrimal glands:
Krauss & Wolfing 
LACRIMAL APPARATUS:
What are the drainage sections of the lacrimal apparatus?
Punctual
Canaliculi
Lacrimal Sac
Naso-lacrimal duct
LACRIMAL APPARATUS:
What are the functions of the lacrimal apparatus?
Secrete tear film component.
Drain tears and foreign particles from the eye.
PRE-CORNEAL FILM:
What are the layers of the precornial film?
Mucoid
Aqueous/Lacrimal
Lipid/Oily film
PRE-CORNEAL FILM:
What is apart of the aqueous or lacrimal pre corneal film layer ?
Basic and reflex secretors
PRE-CORNEAL FILM:
What are the functions of the pre-corneal film?
Lubricate the cornea and conjunctiva. Remove dust and foreign bodies. Provide a smooth optical surface. Provide nutrition to the cornea. Protect against infection: lysosome Provide oxygen to the cornea.
PRE-CORNEAL FILM:
What are some of the Pre-corneal film assessments?
Schirmer test Break up test (BUT) Rose Bengal Red thread test Lacrimal lake 
EYE PARTS:
What are the outer layers of the eye?
Cornea and sclera
EYE PARTS:
What are the middle layers of the eye?
Iris
Ciliary Body
Choroid
EYE PARTS:
What is the inner layer of the eye?
Retina
SCLERA:
Opaque: white shell of the eye