These are the events of hearing mechanism. Arrange them in order.
a. Impulse transmission by afferent fibres via auditory nerves to the auditory cortex of the brain
b. Analysis of impulses
c. Recognition of sound
d. Passing of vibrations through oval window on to the fluid of cochlea
e. Induction of ripple in Basilar membrane
f. Receiving of sound waves and directing them to ear drum
g. Transmission of vibration through ear ossicles to oval window
h. Vibration of ear drum in response to sound waves
i. Generation of waves in the lymph of cochlea
j. Basilar membrane moves
k. Bending of hair cell
l. Impulses are generated in the associated afferent neuron
m. Pressing of hair against the Tectorial membrane
1. f-h-g-e-j-k-d-i-c-b-a-l-m
2. f-i-e-h-g-d-j-m-k-l-a-b-c
3. f-d-h-g-i-j-e-k-m-l-a-c-b
4. f-h-g-d-i-e-j-k-m-l-a-b-c
From ear drum, the vibrations are transmitted through ……. to the …
(1) Ear ossicles, round window
(2) Ear ossicles, oval window
(3) Meatus, round window
(4) Meatus, oval window
Which of the following is correct order for transmission of sound waves in human ear?
(1) Ear drum- ear ossicles- round window
(2) Ear meatus- ear ossicles- ear drum
(3) Ear ossicles- oval window- cochlea
(4) Ear drum- ear meatus- oval window
Which of the following is true for basilar membrane?
(1) Waves in the lymph induce a ripple in basilar membrane
(2) Basilar membrane moves and presses hair against the tectorial membrane.
(3) Transmission of auditory information to the auditory cortex
(4) Both A and B
The impulses of sound waves are analysed and recognised in which area of brain?
(1) Auditory medulla
(2) Auditory cortex
(3) Auditory fissure
(4) Auditory ridges
The ripple in basilar membrane is actually induced by
(1) Waves in the lymph
(2) Waves in the ear drum
(3) Waves in the meatus
(4) Waves in the oval window
The impulses of sound wave are transmitted by …. In the auditory cortex of the brain.
(1) Afferent Fibres via auditory nerves
(2) Efferent Fibres via auditory nerves
(3) Association fibres via auditory nerve
(4) Both A and C
The autonomic division of the peripheral nervous system does not innervate:
1. visceral organs
2. exocrine glands
3. skeletal muscle
4. endocrine glands
Identify the correct statement regarding the following diagram:
1. B and F are filled with endolymph
2. C is filled with perilymph
3. Hair cells press against E to generate nerve impulses
4. D is the sensory organ of hearing and has auditory receptors
A major coordinating center for sensory and motor signaling in the human brain is shown in the given sagittal section by the letter:
1. A
2. B
3. C
4. D