Hearing

Q.

How do we hear sound through the ear?

Q.

What is the intensity of sound in a normal conversation?

1. 30-60 decibel

2. 70-90 decibel

3. 120-150 decibel

4. 10-20 decibel

Q. Identify the correct sequence of organs/regions in the organisation of human ear as an auditory mechanoreceptor organ.

1. Pinna-Tympanic membrane-Auditory canal -Incus -Malleus-Stapes -Cochlea-Auditory nerve
2. Pinna-Malleus-Incus-Stapes-Auditory -canal-Tympanic membrane-Cochlea-Auditory nerve
3. Pinna-Cochlea-Tympanic membrane-Auditroy canal-Malleus-Stapes-Incus-Auditory nerve
4. Pinna-Tympanic membrane-Auditory canal Cochlea-Malleus-Incus-Stapes-Auditory nerve
5. Pinna-Auditory canal-Tympanic membrane -Malleus-Incus-Stapes-Cochlea-Auditory nerve

Q.

State whether the following statements are true (T) or false (F). If false, correct them by changing any one single word in each.

(a) Deafness is caused due to rupturing of the pinna. (T/F)

(b) Semi circular canals are concerned with static (positional) balance. (T/F)

Q.

Organ of corti is situated on _________

Q.

What are three types of colour blindness?

Q. Damage of ___ causes hearing impairment.

1. ear drum

2. ear wax

3. pinna

4. eustachian tube

Q.

What does red-green colour blind Mean?

Q.

Consider the following statements.

i) Ears help our brain to sense from which directions the sounds are coming.

ii) Eustachian tubes equalize the air pressure on either side of the eardrum.

1. Both statements are true

2. Both statements are false

3. Statement (i) is true

4. Statement (ii) is true

Q.

Can colour blindness be cured?

Q.

Name the following:

(b) The nerves which transmit impulses from the ear to the brain.

Q.

People with colour blindness cannot see colours.

1. True

2. False

Q.

The auditory nerve is responsible for perceiving sound.

1. True
2. False

Q.

Which of the following is true about the functions of the ear?

1. The range of human hearing is from 20 Hz to 20 kHz

2. The ear is most sensitive to frequencies between about 100 Hz and 300 Hz

3. The endolymph of the scala media is similar in composition to plasma.

4. Conductive hearing loss is loss of hearing due to defects in the sound conducting structures and due to defects in the vestibulocochlear nerve

Q.

What is the sound level for normal conversation?

Q.

What is the normal frequency range of the human ear?

1. 10, 000 cycles/sec

2. 1, 000 cycles/sec

3. 100 cycles/sec

4. 500 cycles/sec

Q. A range of loudness of sound of 70-90 decibels are rated as

1. Very loud
2. Uncomfortable
3. Painful
4. Quiet

Q.

Regarding the Ear and hearing in Humans, Identify the correct statement(s).

1. The range of human hearing is from 20 Hz to 20 kHz

2. The ear is most sensitive to frequencies between about 100 Hz and 300 Hz

3. The endolymph of the scala media is similar in composition to plasma.

4. Conductive hearing loss is loss of hearing due to defects in the sound conducting structures and due to defects in the vestibulocochlear nerve

Q. Vibrations perceived by each human ear are

1. 20 - 20, 000Hz
2. 40 - 20, 000Hz
3. 200 - 20, 000Hz
4. 60 - 20, 000Hz

Q. The membranous labyrinth is concerned with?

1. Hearing
2. Balancing
3. Sound production
4. Hearing and balancing

Q.

The statement given below is incorrect. Rewrite the correct statement by changing the underlined words of the statement.

Deafening is caused by the rupturing of the Pinna.

Q. What is/are the function(s) of the ear?

1. to keep out dirt
2. to maintain balance
3. to detect nearby objects
4. to hear sound

Q.

The eardrum vibrates when sound hits it.

1. False

2. True

Q. Assertion: Auditory ossicles help in hearing.
Reason: They amplify the sound.

1. Assertion is false but reason is true
2. Both the assertion and reason are true but reason does not explain the assertion
3. Assertion is true but reason is false
4. Both the assertion and reason are true and reason explains the assertion

Q. Damage of ___ causes hearing impairment.

1. ear drum

2. ear wax

3. pinna

4. eustachian tube

Q.

Which of the following is the correct sequence of structures involved in hearing a sound?

1. Pinna-Cochlea-Tympanic membrane-Auditroy canal-Malleus-Stapes-Incus-Auditory nerve

2. Pinna-Malleus-Incus-Stapes-Auditory -canal-Tympanic membrane-Cochlea-Auditory nerve

3. Pinna-Tympanic membrane-Auditory canal Cochlea-Malleus-Incus-Stapes-Auditory nerve

4. Pinna-Auditory canal-Tympanic membrane -Malleus-Incus-Stapes-Cochlea-Auditory nerve

Q.

The part of the ear that vibrates in response to sound waves is:

1. Pinna

2. Cochlea

3. Eustachian tube

4. Eardrum

Q.

Given below are groups of terms. In each group, the first pair indicates the relationship between the two terms. Rewrite and complete the second pair.

Example: Oxygen:Inspiration::Carbondioxide: Expiration.

Eye:Optic nerve::Ear:___________