Question 1

What does the inner ear contain?

Accepted Answer

A)  malleus,incus,and stapes 
B)  organ of Corti and semicircular canals 
C)  tympanic membrane and auditory canal 
D)  ossicles and oval window 
A)  malleus,incus,and stapes 
B)  organ of Corti and semicircular canals 
C)  tympanic membrane and auditory canal 
D)  ossicles and oval window B

Question 2

How does otosclerosis cause hearing loss?

Accepted Answer

A)  fixation of the stapes to the oval window 
B)  adhesions between the ossicles 
C)  fibrosis in the tympanic membrane 
D)  overgrowth of bone obstructing the auditory tube 
A)  fixation of the stapes to the oval window 
B)  adhesions between the ossicles 
C)  fibrosis in the tympanic membrane 
D)  overgrowth of bone obstructing the auditory tube A

Question 3

Which of the following is a sign of a detached retina?

Accepted Answer

A)  painless blurring of vision 
B)  eye pain,halos around lights,and nausea 
C)  progressive loss of central vision 
D)  no pain,but an increasing dark area in the visual field 
A)  painless blurring of vision 
B)  eye pain,halos around lights,and nausea 
C)  progressive loss of central vision 
D)  no pain,but an increasing dark area in the visual field D

Question 4

Which fluid is constantly secreted and reabsorbed through structures within the eye?

Accepted Answer

A)  aqueous humor 
B)  vitreous humor 
C)  tears 
D)  cerebrospinal fluid 
A)  aqueous humor 
B)  vitreous humor 
C)  tears 
D)  cerebrospinal fluid

Question 5

Herpes simplex virus is a common cause of:

Accepted Answer

A)  conjunctivitis 
B)  corneal ulceration and scarring 
C)  eye infection in the neonate 
D)  total blindness 
A)  conjunctivitis 
B)  corneal ulceration and scarring 
C)  eye infection in the neonate 
D)  total blindness

Question 6

The area providing the greatest visual acuity is the:

Accepted Answer

A)  macula lutea 
B)  fovea centralis 
C)  optic disc 
D)  lens 
A)  macula lutea 
B)  fovea centralis 
C)  optic disc 
D)  lens

Question 7

What do the extrinsic muscles of the eye control?

Accepted Answer

A)  movement of the eyeball 
B)  movement of the eyelid 
C)  size of the pupil 
D)  shape of the lens 
A)  movement of the eyeball 
B)  movement of the eyelid 
C)  size of the pupil 
D)  shape of the lens

Question 8

Which of the following is an example of conduction deafness?

Accepted Answer

A)  damage to the organ of Corti 
B)  degeneration of cranial nerve VIII 
C)  adhesions reducing the movement of the ossicles 
D)  trauma affecting the temporal lobe 
A)  damage to the organ of Corti 
B)  degeneration of cranial nerve VIII 
C)  adhesions reducing the movement of the ossicles 
D)  trauma affecting the temporal lobe

Question 9

Which of the following indicates corneal trauma or infection?

Accepted Answer

A)  purulent discharge and redness of the conjunctiva and sclera 
B)  pruritic (itchy)eye with excessive tears 
C)  dark area in the visual field 
D)  severe pain and photophobia 
A)  purulent discharge and redness of the conjunctiva and sclera 
B)  pruritic (itchy)eye with excessive tears 
C)  dark area in the visual field 
D)  severe pain and photophobia

Question 10

Loss of vision can occur when:

Accepted Answer

A)  excessive intraocular pressure develops 
B)  the cornea is scarred 
C)  either of the preceding occurs 
A)  excessive intraocular pressure develops 
B)  the cornea is scarred 
C)  either of the preceding occurs

Question 11

The right eye would lose all vision if damage occurred to the:

Accepted Answer

A)  left optic nerve 
B)  right optic nerve 
C)  left occipital lobe 
D)  right occipital lobe 
A)  left optic nerve 
B)  right optic nerve 
C)  left occipital lobe 
D)  right occipital lobe

Question 12

What must happen for the pupil of the eye to dilate?

Accepted Answer

A)  The circular muscle of the iris must contract. 
B)  Cranial nerve III must be activated. 
C)  Stimulation of the sympathetic nervous system is required. 
D)  The optic nerve must be stimulated. 
A)  The circular muscle of the iris must contract. 
B)  Cranial nerve III must be activated. 
C)  Stimulation of the sympathetic nervous system is required. 
D)  The optic nerve must be stimulated.

Question 13

Trachoma is indicated by the presence of:

Accepted Answer

A)  purulent exudate and red sclerae 
B)  corneal abrasions by the infected eyelids 
C)  diplopia and cloudy lens 
D)  ptosis and fixed dilation of the pupil 
A)  purulent exudate and red sclerae 
B)  corneal abrasions by the infected eyelids 
C)  diplopia and cloudy lens 
D)  ptosis and fixed dilation of the pupil

Question 14

Which is the early effect of age-related macular degeneration?

Accepted Answer

A)  loss of central visual acuity 
B)  intermittent pain and blurred vision 
C)  loss of peripheral vision 
D)  loss of night vision and color perception 
A)  loss of central visual acuity 
B)  intermittent pain and blurred vision 
C)  loss of peripheral vision 
D)  loss of night vision and color perception

Question 15

Severe pain develops with narrow-angle glaucoma when the:

Accepted Answer

A)  pupils are constricted 
B)  pupils are dilated 
C)  lens changes shape 
D)  excess vitreous humor forms 
A)  pupils are constricted 
B)  pupils are dilated 
C)  lens changes shape 
D)  excess vitreous humor forms

Question 16

Which statement does NOT apply to chronic glaucoma?

Accepted Answer

A)  degeneration and obstruction of the trabecular network 
B)  gradual increase in intraocular pressure 
C)  abnormally narrow angle between the cornea and iris 
D)  damage to the retina and optic nerve 
A)  degeneration and obstruction of the trabecular network 
B)  gradual increase in intraocular pressure 
C)  abnormally narrow angle between the cornea and iris 
D)  damage to the retina and optic nerve

Question 17

Why does vertigo occur with Ménière's syndrome?

Accepted Answer

A)  Fluid is lost from the inner ear. 
B)  Increased blood pressure causes edema in the middle and inner ears. 
C)  Damage occurs to the vestibular branch of the auditory nerve. 
D)  Excessive endolymph impairs the function of hair cells in the labyrinth. 
A)  Fluid is lost from the inner ear. 
B)  Increased blood pressure causes edema in the middle and inner ears. 
C)  Damage occurs to the vestibular branch of the auditory nerve. 
D)  Excessive endolymph impairs the function of hair cells in the labyrinth.

Question 18

Which of the following is a likely consequence of an untreated detached retina?

Accepted Answer

A)  lack of nutrients causing death of retinal cells 
B)  edema of the cornea causing blurred vision 
C)  cupping of the optic disc with damage to the optic nerve 
D)  damage to the fovea centralis 
A)  lack of nutrients causing death of retinal cells 
B)  edema of the cornea causing blurred vision 
C)  cupping of the optic disc with damage to the optic nerve 
D)  damage to the fovea centralis

Question 19

Which of the following is caused by an irregular curvature of the cornea or lens?

Accepted Answer

A)  nystagmus 
B)  astigmatism 
C)  hyperopia 
D)  strabismus 
A)  nystagmus 
B)  astigmatism 
C)  hyperopia 
D)  strabismus

Question 20

Which of the following is often the first sign of ototoxicity from drugs or chemicals?

Accepted Answer

A)  sudden total loss of hearing 
B)  tinnitus 
C)  severe pain in ear 
D)  fluid exudate draining from ear 
A)  sudden total loss of hearing 
B)  tinnitus 
C)  severe pain in ear 
D)  fluid exudate draining from ear

Exam 24: Disorders of the Eye and Ear

What does the inner ear contain?

How does otosclerosis cause hearing loss?

Which of the following is a sign of a detached retina?

Which fluid is constantly secreted and reabsorbed through structures within the eye?

Herpes simplex virus is a common cause of:

The area providing the greatest visual acuity is the:

What do the extrinsic muscles of the eye control?

Which of the following is an example of conduction deafness?

Which of the following indicates corneal trauma or infection?

Loss of vision can occur when:

The right eye would lose all vision if damage occurred to the:

What must happen for the pupil of the eye to dilate?

Trachoma is indicated by the presence of:

Which is the early effect of age-related macular degeneration?

Severe pain develops with narrow-angle glaucoma when the:

Which statement does NOT apply to chronic glaucoma?

Why does vertigo occur with Ménière's syndrome?

Which of the following is a likely consequence of an untreated detached retina?

Which of the following is caused by an irregular curvature of the cornea or lens?

Which of the following is often the first sign of ototoxicity from drugs or chemicals?

Introduction to Pathophysiology

Inflammation and Healing

Immunity and Abnormal Responses

Infection

Neoplasms

Fluid,electrolyte and Acid-Base Imbalances

Congenital and Genetic Disorders

Diseases Associated With Adolescence

Potential Complications of Pregnancy

Aging and Disease Processes

Effects of Immobility

The Influence of Stress

Pain

Substance Abuse

Environmental Hazards

Introduction to Basic Pharmacology and Selected Therapies

Blood and Lymphatic Disorders

Cardiovascular Disorders

Respiratory Disorders

Digestive System Disorders

Urinary System Disorders

Acute Neurological Disorders

Chronic Neurologic Disorders

Endocrine Disorders

Musculoskeletal Disorders

Skin Disorders

Reproductive System Disorders

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