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Health Sciences OSTC > Special Senses > Flashcards

Special Senses Flashcards

1
Q

what do the eyelids and eyelashes do?

A

keep out dirt and bacteria

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2
Q

what are the lacrimal glands connected too

A

connected to the nasal cavity

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3
Q

what’s the function of the lacrimal glands

A

they produce tears witch moisten and cleanse the eye

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4
Q

whats conjunctiva

A

the mucus membrane that lines the eyelid and covers the front of the eye providing additional protection

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5
Q

whats the sclera?

A

is the “white” part of the eye, the outermost layer

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6
Q

whats the function of the sclera?

A

it helps maintain the eyes shape

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7
Q

whats the cornea?

A

transparent front of the sclera

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8
Q

whats the choroid coat ?

A

the middle layer that is the blood vessels that nourish

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9
Q

whats the retina?

A

the inner lining of the eyeball that light waves fall onto after passing through the eye

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10
Q

what’s the function of the retina

A

transmits impulces to the optic nerve

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11
Q

what are photoreceptors?

A

rods and cones

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12
Q

whats the iris?

A

colored portion of the eye

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13
Q

whats the pupil

A

opening int he center of the iris

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14
Q

where is the lens located?

A

behind the pupil

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15
Q

whats the lens function?

A

refracts rays to focus on retina

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16
Q

what do accommodates allow you to do?

A

allow near/far vision

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17
Q

hyperopia disease?

A

disease where the eyeball is too short effecting farsighness vision

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18
Q

What corrects hyperopia

A

Convex lenses

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19
Q

Myopia disease?

A

Disease where eyeball is too long effecting nearsighted vision

20
Q

How do you correct myopia

A

Concave lenses and radial keratomoy surgery

21
Q

Amblyopia?

A

Lazy eye

22
Q

How do you correct amblyopia

A

Surgery, glasses, exercises and patching

23
Q

Strabismus disease

A

Eyes dont move or focus together

24
Q

How do you correct strabismus

A

Surgery, glasses, exercises and patching

25
Q

What age group is strabismus most common in

A

Children

26
Q

Whats astigmatism disease

A

Abnormal curvature of cornea

27
Q

How do you correct astigmatism

A

Glasses or contacts

28
Q

Whats a cataract

A

Cloudy lens

29
Q

Whats glaucoma? Hows it controlled?

A

Increased intruoocular pressure. With meds

30
Q

Whats conjunctivitis?

A

Contagious eye infection

31
Q

How is conjunctivitis treated?

A

Antibiotics, eye drops, cream

32
Q

Whats the ear?

A

Controls hearing and balances by transmitting impulses from sound waves too auditory nerve

33
Q

Whats the pinna/auricle?

A

Outer visible part of the ear (largest structure)

34
Q

Whats the external auditory canal?

A

The glands that produce cerumen (wax)

35
Q

Whats cerumen?

A

Wax

36
Q

Whats the tympanic membrane?

A

Eardrum that separates the outer ear from the middle ear . Vibrates when sound waves hit

37
Q

Middle ear?

A

Small cavity in the temporal bone

38
Q

Three bones of middle ear

A

Malleus ,incus, stapes

39
Q

What do the Malleus ,incus, stapes in the middle ear do?

A

Transmit sound waves in the ear

40
Q

Whats the inner ear?

A

Oval window thats the entrance too other parts of inner ear

41
Q

Cochlea?

A

Organ of corti that transmits impulses to the auditory nerves

42
Q

Semicircular canals?

A

Balance and equilibrium

43
Q

Conductive hearing loss? Treat?

A

Sound Waves dont conduct to the inner ear because ruptured tempanic membrane

Treat- surgery , hearing age

44
Q

Sensory hearing loss?

A

Damage to the inner ear or auditory nerve

45
Q

Ottis media? Treat?

A

Infection of the middle ear that causes sore throat

T- antibiotics , myringotomy

46
Q

Otitis extetna ? Treat?

A

Inflammation of external auditory canal (swimmers ear)

T- antibiotics , warm compresses

47
Q

Otosclerosis?

A

Stapes become immobile causes conductive hearing loss

Health Sciences OSTC (15 decks)

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