Reissner's membrane separates:
1. Scala vestibuli and Scala media
2. Tympanic cavity and Pharynx
3. Fenestra rotundus and Fenestra ovalis
4. Scala media and Scala tympani
The stapes sends its vibrations to
1. Incus
2. Round window
3. Tympanic membrane
4. Oval window
Above the rows of hair cells of Organ of Corti, there is a thin elastic membrane called:
1. Reissner's membrane
2. Basilar membrane
3. Tectorial membrane
4. Tympanic membrane
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
Find the incorrect match.
(1) Bony labyrinth- series of channels
(2) Inside of bony labyrinth- membranous labyrinth
(3) Bony labyrinth- surrounding fluid is perilymph
(4) Coiled portion of labyrinth-Cochlea
The fluid of membranous labyrinth in human ear is
(1) Perilymph
(2) Endolymph
(3) Otolymph
(4) Cystolymph
Which of the following will end at oval window(1) and terminate at round window(2) in human ear?
(1) (1) Scala media
(2) (1) Scala tympani
(3) (2) Scala tympani
(4) (2) Scala vestibuli
Which of the following statement is correct with respect to hair cell of internal ear?
(1) It acts as an optic receptor
(2) Its basal part is in contact of efferent nerve fibres
(3) Stereo cilia are projected from apical part of each hair cell
(4) It is arranged in columns in internal part of organ of corti
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
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