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Med Terms > Chapter 11 Primary Terms > Flashcards

Chapter 11 Primary Terms Flashcards

1
Q

Adnexa of the eyes

A

Structures outside the eyeball, includes: orbit, eye muscles, eyelids, eyelashes, conjuctiva, and lacrimal apparatus

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2
Q

Adnexa

A

Accessory or adjoining anatomical parts of an organ

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3
Q

Orbit

A

Bony, cavity of the skull that contains and protects the eyeball and its associated muscles, blood vessels, and nerves

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4
Q

Upper and lower eyelids, Eyebrows, and Eyelashes

A

Protect the eyeball from foreign matter, excessive light, and other injuries

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4
Q

Binocular Vision

A

Occurs when the muscles of both eyes work together in coordination to make normal depth perception possible

Bin means two, ocul means eye

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5
Q

Cilia

A

Small hairs, make up the eyebrows and eyelashes

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5
Q

Canthus

A

Angle where the upper and lower eyelids meet

Canth means corner of the eye

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6
Q

Tarsus

A

The framework within the upper and lower eyelids that provides the necessary stiffness and shape

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7
Q

Conjuctiva

A

Transparent mucous membrane that lines the underside of each eyelid and continues to form a protective covering over the exposed surface

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8
Q

Lacrimal Apparatus

A

Consists of the structures that produce, store, and remove tears

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9
Q

Lacrimal Glands

A

Secrete lacrimal fluid (tears), located on the underside of the upper eyelid just above the outer corner of each eye

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10
Q

Lacrimal Fluid

Tears

A

Maintain moistureon the anteriror surface of the eyeball

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11
Q

Lacrimal Canal

A

Consists of a duct at the inner corner of each eye, collects tears and empties them into the lacrimal sacs

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12
Q

Lacrimal Sac

A

Enlargement of the upper portion of the lacrimal duct

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13
Q

Lacrimal Duct

A

Passageway that drains excess tears into the nose

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14
Q

Optic

A

Pertaining to the eye or sight

Opt means eye, -ic means pertaining to

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15
Q

Ocular

A

Pertaining to the eye

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16
Q

Extraocular

A

Outside the eyeball

Extra means outside, ocul means eye, -ar means pertaining to

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17
Q

Intraocular

A

Within the eyeball

intra means within, ocul means eye, -ar means pertaining to

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18
Q

Sclera

White of the Eye

A

Maintains the shape of the eye and protects the delicate inner layers of tissue

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19
Q

Choroid

A

Opaque, middle layer of the eyeball that contains blood vessels and provides the blood supply to the entire eye

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20
Q

Retina

A

Sensitive innermost layer that lines the posterior segment of the eye, recieves nerve impules and transmits them to the brain

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21
Q

Intraocular Pressure

A

Measurement of the fluid pressure inside the eye, pressure is regulated by the rate at which aqueous humor enters and leaves the eye

22
Q

Posterior Segment

A

Lined with the retina and filled with vitreous humor

23
Q

Rods and Cones

A

Recieve images that have passed through the lens of the eye, rods are black and white, cones are colored

23
Q

Macula

A

Clearly defined ligh sensitive area in the center of the retina that is reponsible for sharp central vision

24
Q

Fovea Centralis

A

Pit in the middles of the macula

25
Q

Optic Disk

Blind Spot

A

Small region in the eye where the nerve endings of the retina enter the optic region

26
Q

Optic Nerve

A

Transmits nerve impulses from the retina to the brain

27
Q

Cilliary Body

A

Located within the choroid, is a thick set of muscles and suspensory ligaments that adjusts the thickness of the lends to refine the focus

27
Q

Uvea

A

Pigmented layer of the eye, rich blood supply and consists of the choroid, ciliary body, and iris

28
Q

Cornea

A

Transparent outer surface of the eye covering the iris and pupil

29
Q

Pupil

A

Black circular opening in the center of the iris that permits light to enter the eye

30
Q

Accomodation

A

Process where the eyes make adjustments for seeing objects at various distances

31
Q

Lens

A

Clear, flexible, curved structure that focuses images on the retina, located behind the iris and pupil

32
Q

Convergance

A

Simultaneous inward movement of the eyes toward each other

33
Q

Emmetropia

A

Normal relationship between the refractive power of the eye and shape of the eye that enables light rays to focus correctly on the retina

Emmetr means in proper measure, opia means vision condition

34
Q

Refraction

A

Ability of the lens to bend light rays so they focus on the retina

35
Q

Visual Acuity

A

Ability to distinguish object details and shapes at a distance

36
Q

Opthalmologist

A

Physician who specializes in diagnosing and treatinf the full spectrum of diseases and disorders of the eyes

Opthalm means eye, ologist means specialist

37
Q

Optometrist

A

Holds a doctor of optpmetry degree and provides primart eye care, including diagnosing eye diseases and conditions and measuring the accuracy of the vision

38
Q

Optician

A

Health care practitioner who designs, fits, and dispenses lenses for vision correction

38
Q

Ptosis

A

Dropping of the upper eyelid that is usually due to muscle weakness or sagging

39
Q

Chalazion

A

Nodule or cyst, usually on the upper eyelid, caused by an obstruction of the sebaceous gland

40
Q

Hordeolum

Stye

A

Pus-filled and often painful lesion on the eyelid resulting from an acute infection in a sebaceous gland

41
Q

Blepharitis

A

Swelling of the eyelid

Blephar means eyelid, itis means inflammation

42
Q

Ectropion

A

Eversion of the edge of an eyelid

Ec means out, trop means turn, -ion means condition

43
Q

Entropion

A

Inversion of the edge of an eyelid

En means in, trop means turn, ion means condition

43
Q

Periorbital Edema

A

Swelling of the tissues surrounding the eye or eyes

peri means surrounding, orbit means eyeball

43
Q

Conjuctivitis

Pink Eye

A

Inflammation of the conjuctiva that is usually caused by a viral infection, allergy, or irritants

44
Q

Dacryocystitis

A

Inflammation of the lacrimal sac usually caused by blockage of the lacrimal sac

44
Q

Dacryoadenitis

A

Inflammation of the lacrimal gland caused by bacterial, viral, or fungal infection

45
Q

Subconjunctival Hemorrhage

A

Bleeding between the conjuctiva and the sclera

46
Q
A
47
Q
A

Med Terms (26 decks)

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