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OPT 2500L (FULL OVERVIEW) > Anatomy And Physiology Of The Eye > Flashcards

Anatomy And Physiology Of The Eye Flashcards

1
Q

The orbits

A

A bony cavity in the skull designed to protect the eyeball from injury.

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2
Q

Orbital walls are formed by what 7 bones?

A 
Ethmoid
Lacrimal
Frontal
Sphenoid 
Maxillary 
Palatine 
Zygomatic
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3
Q

Foremen, canals, and Fissures

A

Optic Foramen or Canal

Infraorbital Canal or Fissure

Orbital Foramen

Superior Orbital Fissure

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4
Q

Adnexa contains:

Front part of the eye

A

Lids

Conjunctiva

Lacrimal Apparatus

Pre-Corneal Film

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5
Q

LIDS:

What are the 4 layers of the lids ?

A

Skin
Muscle
Tarsal plates
Conjunctiva

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6
Q

LIDS:

What are the four muscles that are a part of the layer section of the lids?

A

Levator
Muller
Riolan
Orbicularis

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7
Q

LIDS:

What are the three glands that are part of the lids?

A

Zeis
Moll
Meibomian

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8
Q

LIDS:

What are the functions of the lids?

A 
Block light during sleep
Protect the eye
Remove foreign matter
Secrete tear film component
Spread tear film over the cornea
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9
Q

CONJUNCTIVA:

What are the sections of the conjunctiva?

A

Palpebral
Bulbar
Fornix/cul-de-sac

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10
Q

CONJUNCTIVA:

What are the layers of the conjunctiva?

A

Epithelium: Goblet cells
Substantia Propia/Stroma


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11
Q

CONJUNCTIVA:

What are the functions of the conjunctiva?

A

Protect the eye.
Prevent foreign bodies from entering the orbit.
Secrete to your film component - mucous.
Reduce friction between the lids and globe. 

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12
Q

LACRIMAL APPARATUS:

what are the glands of the lacrimal apparatus?

A

Main lachrymal Gland
Accessory lacrimal glands:
Krauss & Wolfing 

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13
Q

LACRIMAL APPARATUS:

What are the drainage sections of the lacrimal apparatus?

A

Punctual
Canaliculi
Lacrimal Sac
Naso-lacrimal duct

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14
Q

LACRIMAL APPARATUS:

What are the functions of the lacrimal apparatus?

A

Secrete tear film component.

Drain tears and foreign particles from the eye.

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15
Q

PRE-CORNEAL FILM:

What are the layers of the precornial film?

A

Mucoid
Aqueous/Lacrimal
Lipid/Oily film

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16
Q

PRE-CORNEAL FILM:

What is apart of the aqueous or lacrimal pre corneal film layer ?

A

Basic and reflex secretors

17
Q

PRE-CORNEAL FILM:

What are the functions of the pre-corneal film?

A 
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.
18
Q

PRE-CORNEAL FILM:

What are some of the Pre-corneal film assessments?

A 
Schirmer test
Break up test (BUT)
Rose Bengal
Red thread test
Lacrimal lake

19
Q

EYE PARTS:

What are the outer layers of the eye?

A

Cornea and sclera

20
Q

EYE PARTS:

What are the middle layers of the eye?

A

Iris
Ciliary Body
Choroid

21
Q

EYE PARTS:

What is the inner layer of the eye?

A

Retina

22
Q

SCLERA:

A

Opaque: white shell of the eye

OPT 2500L (FULL OVERVIEW) (8 decks)

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