Special Senses Drills Multiple Choice Flashcards

1
Q

Lacrimal glands are located on which surface of the eye?

A

Lateral

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2
Q

Which of the external eye muscles is controlled by cranial nerve VI (abducens)?

A

Lateral rectus

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3
Q

Tough, white connective tissue forms this portion of the fibrous layer of the eye.

A

Sclera

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4
Q

The gland that produces tears in the eye is called the ___.

A

Lacrimal gland

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5
Q

The pupil is an opening within the ___.

A

Iris

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6
Q

Inflammation of the conjunctiva involves ___.

A

Delicate membrane lining the eyelids and covering the front of the eyeball

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7
Q

Which region of the retina contains only cones and is the sharpest area of visual acuity?

A

Fovea centralis

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8
Q

The transparent central anterior portion of the sclera through which light enters the eye is called ___.

A

Cornea

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9
Q

The middle coat of the eyeball that contains pigment which prevents light from scattering in the eyeball is the ___.

A

Choroid

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10
Q

Which layer of the eye contains rods and cones?

A

Retina

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11
Q

The pigmented portion of the eye that has a rounded opening through which light passes is the ___.

A

Iris

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12
Q

The three sets of color receptors within the retina are sensitive to wavelengths of visible light that are ___.

A

Blue, green, and red

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13
Q

Which area of the retina lacks rods and cones and therefore does not detect images?

A

Optic disc

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14
Q

The aqueous humor of the eye is reabsorbed into venous blood through the ___.

A

Canal of Schlemm

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15
Q

Which one of the following is NOT true of color blindness?

A

It occurs most often in women

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16
Q

The gel-like substance that reinforces the eyeball and prevents it from collapsing inward is the ___.

A

Vitreous humor

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17
Q

What structure of the eye focuses light on the retina?

A

Lens

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18
Q

The inability to see distant objects is termed “nearsighted” or ___.

A

Myopia

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19
Q

Eyes suddenly exposed to bright light experience ___.

A

Photopupillary reflex

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20
Q

Which one of the following correctly lists the order of the parts through which light passes as it enters the eye?

A

Cornea, aqueous humor, lens, vitreous humor

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21
Q

Which of the following is NOT associated with the middle ear?

22
Q

Sound waves entering the external auditory canal hit the eardrum, also known as the ___.

A

Tympanic membrane

23
Q

Hair cells that function as hearing receptors are located within the ___.

A

spiral organ of Corti

24
Q

The pathway of vibrations through the ossicles from the tympanic membrane, or eardrum, to the oval window is ___.

A

Malleus, incus, stapes

25
Equilibrium receptors are located in the ___.
Inner ear
26
An ear infection following an illness such as a cold can pass from the throat through the auditory tube to the ___.
Middle ear
27
The auditory ossicle called the "anvil" is also called the ___.
Incus
28
Our sense of static equilibrium is created by the ___.
Movement of otoliths along hair cells
29
Dynamic equilibrium receptors are found in the ___.
Semicircular canals
30
Hearing receptors within the spiral organ of Corti are called ___.
Hair cells
31
Which cranial nerve transmits hearing and equilibrium information to the brain?
Vestibulocochlear nerve (VIII)
32
Sensorineural deafness occurs when there is damage or degeneration of receptor cells of the ___.
Spiral organ of Corti or cochlear nerve
33
Gustatory hairs are to taste as olfactory hairs are to ___.
Smell
34
Which one of the following is NOT a primary taste sensation?
Pungent
35
Which one of the following nerves serves the anterior tongue?
Facial
36
Which one of the following cranial nerves is NOT involved in either taste or smell?
Vestibular
37
Stimulation of sour receptors occurs in response to ___.
Lemons
38
The congenital condition of "crossed eyes" is also known as ___.
Strabismus
39
The fusion of ear bones is known as ___.
Otosclerosis
40
The only special sense that is NOT fully functional at birth is ___.
Vision
41
Where are the general senses located?
Skin
42
What nerves carry information about the special senses to the CNS?
Cranial nerves only
43
How is the sensation of taste affected by a drymouth?
Foods have a less intense taste when the mouth is dry
44
Which extrinsic eye muscles move the eye inferiorly?
Superior oblique and inferior rectus
45
What is the function of the lens?
The lens focuses light on the retina
46
The ability of the lens to change its shape from flattened to round is known as ___.
Accommodation
47
Twenty-year-old Leslie learned she is hyperopic after having her eyes examined. What best describes her eye condition?
Her eyeballs are too short
48
Where does each half of the visual field get segregated so that it reaches the opposite hemisphere of the brain?
optic chiasma
49
True or False: The highest concentration of taste buds is found in filiform papillae.
FALSE. Filiform papillae do not contain taste buds.
50
True or False: The muscles of the iris and ciliary muscle are considered to be extrinsic eye muscles because they are voluntary.
FALSE. They are involuntary and are considered to be intrinsic eye muscles.