Patho chapter 16

Question 1

Eyelids cover the posterior portion of the eyeball

Answer 1

False

Question 2

The eyeball is the sensory organ of sight

Answer 2

True

Question 3

The conjunctiva protects the eye from foreign objects

Answer 3

True

Question 4

The lacrimal glands clean and moisten the eye

Answer 4

True

Question 5

The mechanism of vision occurs after impulses leave the retina and travel through the optic nerves to the brain

Answer 5

True

Question 6

The external ear includes the pinna and tympanic membrane

Answer 6

False
It includes the pinna and the external auditory canal

Question 7

The pinna is made mostly of cartilaginous tissue

Answer 7

True

Question 8

The external auditory canal is 2 inches long and contains hair and cerumen

Answer 8

False
The external auditory canal is about 1 inch in length, and contains hair and wax (cerumen) producing glands

Question 9

The external and inner ears are separated by the tympanic membrane

Answer 9

False
The external and middle ears are separated by the tympanic membrane

Question 10

The middle ear contains three bones: the malleus, incus, and stapes

Answer 10

True

Question 11

The inner ear is the least sophisticated part of the ear

Answer 11

False
The inner ear is the most sophisticated part of the ear

Question 12

The inner ear is responsible for both equilibrium and hearing

Answer 12

True

Question 13

Tonometry measures ear pressure.

Answer 13

False
Tonometry is a procedure to measure the pressure inside the eye.

Question 14

An otoscope is used to examine the inner eye.

Answer 14

False

Question 15

The most common problem of the eyes is decreased visual acuity

Answer 15

True

Question 16

The most common cause of poor visual acuity is refractive errors

Answer 16

True

Question 17

Approximately one-half of the population is affected by refractive errors

Answer 17

False

Question 18

Blepharitis is caused by a viral infection

Answer 18

False
Blepharitis may be caused by bacterial infection and allergic reaction to smoke, dust, or chemicals. Seborrhea, a disorder of the sebaceous gland or oil-secreting gland, also may cause blepharitis.

Question 19

The herpes simplex virus secondary to an upper respiratory infection is a common cause of keratitis.

Answer 19

True

Question 20

A stye is an inflammatory infection of a sebaceous gland of the eyelid

Answer 20

True

Question 21

Styes are commonly caused by the Streptococcus bacteria

Answer 21

False

Most styes are caused by Staphylococcus bacteria

Question 22

There are no preventive measures for refractive errors

Answer 22

True

Question 23

There are no preventive measures for conjunctivitis

Answer 23

False

Good hand hygiene measures can prevent most cases

Question 24

Common signs and symptoms of ear disease include deafness, tinnitus and otalgia

Answer 24

True

Question 25

The Snellen chart is used to measure visual acuity

Answer 25

True

Question 26

The eyelids regulate light, protect and lubricate the eye

Answer 26

True

Question 27

The structures of hearing and equilibrium include the external, middle and inner ear

Answer 27

True