ch 49 sensation

Question 1

transmission of sound

Answer 1

Vibration of the eardrum transmits through the bony ossicles. Vibrations at the oval window transmit in perilymph within the inner
ear to stimulate hair cells that send impulses along the eighth cranial nerve to the brain

Question 2

Presbycusis

Answer 2

impaired hearing

Question 3

is a decrease in production of saliva; this decreases the ability and desire to eat and can lead to nutritional problems. (dry mouth)

Answer 3

Xerostomia

Question 4

lose the ability to distinguish

high-pitched noises and consonants

Answer 4

older adults

Question 5

becomes impaired as physiological changes in the aging eye

Answer 5

Night vision

Question 6

is a result of vestibular dysfunction and often is precipitated by a change in head position (balance deficit)

Answer 6

Vertigo

Question 7

presbyopia, cataracts, glaucoma, and macular degeneration

Answer 7

Visual deficits

Question 8

include presbycusis and cerumen accumulation

Answer 8

Hearing deficits

Question 9

is a 5-minute, 10-item
questionnaire that assesses how the individual perceives the social and emotional effects of hearing loss. The higher the HHIE-S
score, the greater the handicapping effect of a hearing impairment.

Answer 9

HHIE-S

Question 10

is a tool you can use to measure disorientation, change in problem-solving abilities, and altered
conceptualization and abstract thinking

Answer 10

Mini-Mental State

Examination (MMSE)

Question 11

is a refractive error such as nearsightedness

Answer 11

visual problem

Question 12

keeps the taste buds well hydrated

Answer 12

Good oral hygiene ex rinse mouth

Question 13

is the inability to understand language or communicate

orally.

Answer 13

Global aphasia

Question 14

, a motor type of aphasia, is the inability to name
common objects or express simple ideas in words or writing
ways to communicate nonverbally through means such as pointing and gestures (can’t write)

Answer 14

Expressive aphasia

Question 15

Screening for diseases such as rubella, syphilis,

chlamydia, and gonorrhea that affect development of

Answer 15

vision in the fetus is a preventative measure

Question 16

administering eye prophylaxis in the form of erythromycin ointment
approximately 1 hour after an infant’s birth

Answer 16

vision in the fetus is a preventative measure

Question 17

occurs when a person has decreased stimulation and limited sensory input (isolated)

Answer 17

Sensory deprivation

Question 18

streptomycin, gentamicin, and tobramycin

Answer 18

ototoxic and permanently damage the auditory nerve

Question 19

chloramphenicol sometimes

Answer 19

irritates the optic nerve

Question 20

structure of eye start from beginning

Answer 20

Light rays enter the convex cornea and begin to converge. An adjustment of light rays occurs as they pass through the pupil and lens. Change in the shape of the lens focuses light on the retina. The sensory retina contains the rods and cones (i.e., photoreceptor
cells sensitive to stimulation from light). Photoreceptor cells send electrical potentials by way of the optic nerve to the brain
Cornea,pupil, lens,retina, optic nerve