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Ocular Block 5 > Introduction And Ocular Terminology > Flashcards

Introduction And Ocular Terminology Flashcards

1
Q

Cut to create right/left halves (medial)

A

Sagittal

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2
Q

Cut through midline to create equal left and right halves

A

Mid sagittal

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3
Q

Frontal cross section

A

Coronal

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4
Q

Horizontal cross section

A

Transverse

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5
Q

Eye movement towards the midline

A

Addiction

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6
Q

Eye movement away from the midline

A

Abduction

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7
Q

Eye movement: top of eye rotates toward midline

A

Intorsion

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8
Q

Eye movement: top of eye rotates away from midline

A

Extortion

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9
Q

Eye movement: eye moves/looks up

A

Elevation

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10
Q

Eye movement: eye moves/looks down

A

Depression

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11
Q

What does the outer fibrous layer of the eye form?

A

Connective tissue that forms the cornea and sclera

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12
Q

The middle vascular layer is composed of

A

The iris, ciliary body, and choroid

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13
Q

The inter neural layer of the eye is the

A

Retina

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14
Q

What are the 3 chambers of the eye?

A
  • anterior chamber
  • posterior chamber
  • vitreous chamber
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15
Q

The _________ chamber is bounded in front by the cornea and posteriorly by the iris and anterior surface of the lens

A

Anterior

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16
Q

The ________ chamber lies behind the iris and surrounds the equator of the lens, separating it from the ciliary body.

A

Posterior

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17
Q

The anterior and posterior chambers are continuous with one another through the ______.

A

Pupil

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18
Q

What does the anterior and posterior chamber both contain?

A

Aqueous humor that is produced by the ciliary body

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19
Q

What does the aqueous humor provide?

A

Nourishment for the surrounding structures, particularly the cornea and lens

20
Q

What is the largest chamber?

A

Vitreous chamber

21
Q

What chamber lies adjacent to the inner retinal layer and is bounded in front by the lens

A

Vitreous chamber

22
Q

Where is the vitreous humor?

A

In the vitreous chambers

23
Q

Where do the anterior and posterior chambers meet?

A

Edge of iris in pupil

24
Q

Lens and cornea are too strong or the eyebal is too long

A

Myopia

25
Q

Cornea and lens is too weak or eyeball is too short

A

Hyperopia

26
Q

Corneal and lens strength matches the axial length of the eyeball

A

Emmetropia

27
Q

The distance between the anterior and posterior poles of the eye.

A

Axial length

28
Q

What is the axial length of the human eye

A

23.30mm

29
Q

Anterior pole

A

Apex of cornea

30
Q

Posterior pole

A

Fovea

31
Q

The interior lining of the eyeball, including the retina, optic disc, and the macula

A

Fundus

32
Q

Term pertaining to the surface of the eye

A

Bulbar

33
Q

Term pertaining to the eyelids

A

Palpebral

34
Q

Takes the form of sheets of epithelial cells that either cover the external surface of a structure or that line a cavity

A

Epithelium

35
Q

Epithelial cells like on a ____________ that attaches them to underlying connective tissue

A

Basement membrane

36
Q

Provides structure and support and is a space filler for areas not occupied by other tissues.

A

Connective tissues

37
Q

What does connective tissue consist of

A

Cells, fibers, and ground substances

38
Q

Major component of much of the eyes connective tissue. Composed of protein macromolecules of tropocollagen that have a coiled helix of three polypeptide chains

A

Collagen

39
Q

What is collagen made of

A

Protein macromolecules of tropocollagen that have a coiled helix of three polypeptide chains

40
Q

_____ muscle is controlled by the motor nervous system

A

Striated

41
Q

_____ muscle is controlled by the autonomic nervous system

A

Smooth

42
Q

What are the main components of nervous tissue

A 
Neuron
Axon
Dendrite
Neuroglia 
Myelin/non myelin
43
Q

Basic unit of nervous tissue

A

Neuron

44
Q

Transmits signals in nervous tissue

A

Axon

45
Q

Receives signals in nervous tissue

A

Dendrite

46
Q

Schwann/oligodendrocytes/astrocytes

A

Neuroglia

Produce myelin

Ocular Block 5 (8 decks)

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