Opsin….a…

Retinal…...b…..

  • A protein, a ketone of vitamin A

  • A glycoprotein, an aldehyde of vitamin A

  • A protein, an aldehyde of vitamin A

  • A glycoprotein, a ketone of vitamin

Which of the following sensory function/s is/are performed by ears?

  • Hearing

  • Maintenance of body balance

  • Vision

  • More than one options are correct

Which of the following is not a section of ear on the basis of anatomic criteria?

  • Outer ear

  • Middle ear

  • Inner ear

  • Tympanic membrane

Which of the following is not a part of external ear?

  • Pinna

  • Auditory Meatus

  • Auditory canal

  • Tympanic membrane

Which of the following will have hairs and wax secreting glands in human ear?

  • Pinna

  • Meatus

  • Both A and B

  • Tympanic membrane

The tympanic membrane

  • Is composed of connective tissues covered with skin outside and with mucus membrane inside

  • Is composed of connective tissue with mucus membrane outside and skin inside

  • Is composed of connective tissue with mucus membrane on both the side

  • Is composed of connective tissue with skin on both the side

Incus is not

  • An ear ossicle

  • Present in middle ear

  • Situated in between Malleus and Stapes

  • Increases the efficiency of transmission of light waves to the inner ear

Which of the following is not true about ear ossicles?

  • Malleus, Incus and Stapes

  • Ear ossicles increase the efficiency of transmission of sound waves to the inner ear.

  • Malleus is attached to the tympanic membrane of cochlea

  • Stapes is attached to the oval window of the cochlea

Eustachian tube does not perform

  • Connects middle ear to pharynx

  • Connects internal ear to external ear by means of pharynx

  • Equalises the pressure on either side of pharynx

  • Both B and C

Inner ear is

  • Air filled inner segment

  • Made up of two parts: Bony and Membranous

  • Membranous labyrinth encloses bony labyrinth

  • Membranous labyrinth is surrounded by endolymph

The fluid of membranous labyrinth in human ear is

  • Perilymph

  • Endolymph

  • Otolymph

  • Cystolymph

Which of the following membranes of inner ear are not involved in dividing the perilymph filled bony labyrinth?

  • Basilar membrane

  • Reissner's membrane

  • Tectorial Membrane

  • Both B and C

The upper and lower portion of scala media are

  • Scala vestibuli, scala tympani

  • Scala tympani, scala vestibuli

  • Scala Basali, Scala Resiner

  • Scala Resiner, Scala Basali

Which of the following part of internal ear is filled with endolymph?

  • Scala tympani

  • Scala vestibuli

  • Scala media

  • Scala Basali

Which of the following will end at oval window(1) and terminate at round window(2) in human ear?

  • (1) Scala media

  • (1) Scala tympani

  • (2) Scala tympani

  • (2) Scala vestibuli

………. is located on……..in human ear.

  • Basilar membrane, organ of Corti

  • Organ of Corti, Basilar membrane

  • Organ of Corti, Tectorial membrane

  • Tectorial membrane, Organ of Corti

Which of the following statement is correct w.r.t hair cell of internal ear?

  • It acts as an optic receptor

  • Its basal part is in contact of efferent nerve fibres

  • Stereo cilia are projected from apical part of each hair cell

  • It is arranged in columns in internal part of organ of corti

Tectorial membrane is

  • Thin elastic membrane

  • Below the rows of the hair cell

  • Hair cell gets straightened during mechanism of hearing by Tectorial membrane

  • Both B and C

Vestibular apparatus

  • Composed of three semicircular canals and Otolith

  • Complex system present in internal ear

  • It is located above the cochlea

  • All of these

Which of the following is the sensory part of saccule and utricle?

  • Macula

  • Vesibula

  • Tympana

  • Ampula

Semi circular canal of internal ear:

  • Three in number

  • Lie in different planes

  • Perpendicular to each other

  • All of these

Membranous canals suspended in the perilymph of the bony canals. Which of these canals we are talking about?

  • Semicircular canals

  • Tectorial canals

  • Basilar canals

  • Reissner's canals

The base of canal is swollen and is called ampulla which contains a ……….. called ……..ampullaris which has …..

  • Projecting ridge, Crista, Hair cells

  • Projecting Furrows, macula, nerves

  • Projecting fissures, Crista, hair cell

  • Convolution, Crista, nerves

The maintenance of balance of the body and the posture by vestibular apparatus is performed by

  • Crista

  • Macula

  • Both A and B

  • 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

  • f-h-g-e-j-k-d-i-c-b-a-l-m
  • f-i-e-h-g-d-j-m-k-l-a-b-c
  • f-d-h-g-i-j-e-k-m-l-a-c-b
  • f-h-g-d-i-e-j-k-m-l-a-b-c

From ear drum, the vibrations are transmitted through ……. to the …

  • Ear ossicles, round window

  • Ear ossicles, oval window

  • Meatus, round window

  • Meatus, oval window

Which of the following is correct order for transmission of sound waves in human ear?

  • Ear drum- ear ossicles- round window

  • Ear meatus- ear ossicles- ear drum

  • Ear ossicles- oval window- cochlea

  • Ear drum- ear meatus- oval window

Which of the following is true for basilar membrane?

  • Waves in the lymph induce a ripple in basilar membrane

  • Basilar membrane moves and presses hair against the tectorial membrane.

  • Transmission of auditory information to the auditory cortex

  • Both A and B

The impulses of sound waves are analysed and recognised in which area of brain?

  • Auditory medulla

  • Auditory cortex

  • Auditory fissure

  • Auditory ridges

The ripple in basilar membrane is actually induced by

  • Waves in the lymph

  • Waves in the ear drum

  • Waves in the meatus

  • Waves in the oval window

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Practice Zoology Quiz Questions and Answers