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BioMed S2 R > 18. Sense Organs - Quizzes > Flashcards

18. Sense Organs - Quizzes Flashcards

1
Q

State the unit through which volume is measured

A

Decibels (dB)

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2
Q

Name the THREE bones of the middle ear

A

Malleus (Hammer)
Incus (Anvil)
Stapes (Stirrup)

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3
Q

What structure does the stapes connect too?

A

Oval window

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4
Q

What TWO bones in the inner ear send nerve impulses for
balance?

A

Vestibule
Semi-circular canals

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5
Q

Describe what happens pathologically in Meniere’s disease.
List the THREE main symptoms.

A

Distention of the membraneous labyrinth.

Vertigo
Hearing loss
Tinnitus

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6
Q

Explain what is meant by vertigo

A

The abnormal illusion of movement.

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7
Q

Describe the function of the eustachian tube

A

To equalise pressure in the middle ear

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8
Q

Explain what is meant by secretory otitis media

A

AKA Glue ear
Accumulation of fluid in the middle ear

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9
Q

Name the TWO main categories of hearing loss causes

A

Conductive
Sensory

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10
Q

Name THREE accessory structures that protect the eye

A

Eyebrows
Eyelashes
Eyelids
Lacrimal apparatus

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11
Q

Describe the role of the lacrimal apparatus

A

To produce tears which protect the eye

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12
Q

What is meant by the following: a) macula lutea b) cone cell?

A

a) the central area of the retina giving highest visual acutity
b) one of the two visual receptor cells, receives colour

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13
Q

What is meant by refraction? Indicate TWO structures in the eye that contribute to this process.

A

Refraction is bending of light
The cornea and the lens

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14
Q

In accommodation of vision, contraction of the ciliary body causes what to happen to the lens of the eye?

A

The lens will become more convex as the suspensory ligaments relax, allowing greater refraction of light (for near vision)

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15
Q

What is meant by the optic disc?

A

The site where the optic nerve exits the eyeball

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16
Q

Explain the possible pathological effects of diabetes mellitus on the retina.

A

Could lead to Diabetic retinopathy

Haemorrhages
Microanyurisms
Neovascularisation

17
Q

Name the TWO cranial nerves involved in taste

A

Glossopharyngeal (IX)
Facial (VII)

18
Q

Explain what is meant by papillae

A

Elevations on tongue to assist with gripping food and creating larger surface area for taste.

19
Q
A
20
Q

List THREE symptoms of uveitis

A

Red, bloodshot eyes
Watering
Pain
Photosensitivity

21
Q

Explain what is meant by a grommet

A

A tiny duct piercing the tympanic membrane that allows the middle ear to drain

BioMed S2 R (34 decks)

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