FED 242 Elements Of Special Education

Question 1

Anatomy of the ear:

Answer 1

External/ Outer

Middle

Inner Ear

Question 2

The external ear contains:

Answer 2

Auricle/pinna

Ext canal/ Ext. auditory meatus

Tympanic membrane/ Ear drum

Question 3

The middle ear consist of:

Answer 3

Auditory ossicles : malleus/hammer, incus/anvil and stapes/stirrup

Eustachian tube

Oval window

Ear muscles : tensor tympani and stapedius

Question 4

Inner ear consist of:

Answer 4

2 major supp. system: vestibular & aud. apparatus.

Auditory nerve : connects s.canals & cochlea to the brain.

Vestibular - semicircular canals, sacule & Utricule.

Aud apparatus - known as cochlea, shape like snail shell.
Cochlea : scale vestibule, media & tympani. Btw s. media & tympani; Bastila membrane supp. organs of corti ( transducer). B. men consist of sensory & supp. cells.

Question 5

Physiology of hearing i

Answer 5

Sound that enters the ears goes through this cycle

Acoustic mechanical hydraulic-electrical

Question 6

Hearing impairment means

Answer 6

all h. disabilities that ranges from mild to profound.

It encompasses who are deaf & hard to hearing.

To be h. imp means to have an impediment on the path of hearing to the extent that d aff person suffers distortion of perc. sound or totally lost out in the acquisition & proceeding of acoustic stimuli.

Question 7

Deafness definition

Answer 7

Kirk (1992) is when hearing loss is to great that it impedes dev. of speech & language.
Mykleburst(1964) is when sense of hearing is non-functional to ordinary day activities
Firsina (1974) when h. loss is great to an extent that it precludes the understanding of speech by ear alone

Question 8

A hard of hearing person is

Answer 8

sm who has difficulty in hearing spoken speech unless ampl. by means of hearing aids

Question 9

Classification of H. Impairment based on:

Answer 9

Degree of imp.

Age of onset : congenital, adventitious, pre-lingual & post lingual hearing loss

Place of imp / site of lesion: conductive, sensori-neural loss, mixed-hearing loss, Central auditory dysfunction ( C A D)

Question 10

Causes of H. Imp at the Middle Ear

Answer 10

Atresia
Absence of pinna
Accumulation of ear wax
Presence of foreign bodies in the ear canal
Otitis external
Perforation of eardrum

Question 11

Causes of Middle Ear Deafness

Answer 11

Distortion/Seperation of Middle Ear bone

Otitis Media

Otosclerosis

Question 12

Causes of Inner Ear Deafness

Answer 12

Effect of Noise, Drugs, Old Age
Accident, X Ray, Anoxia, RH factor, Maternal disease, Excsv. smok & drink by expect. mother etc

Question 13

Types of Informal Test for hearing loss

Answer 13

Watch tick, coin click, rattle, tuning fork test

Question 14

Effects of Heat. Imp

Answer 14

Poor lang. dev, social & pers. adj, acad perf, motor cord

Question 15

Exceptional children are

Answer 15

school age children that manifest phy, ment, soc, sens & physch. constraints which causes inability/reduction in perform

Question 16

Howard (1996) defines exceptional children as

Answer 16

those that differ from the norm (either below or average) to such an extent that an ind. prog of special edu is required to meet their needs