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51.

In which of the following the external and middle ears are absent:

A.	Cyclostomes	B.	Fishes
C.	Some amphibians	D.	All of these

52.

Which of the following are concerned with receiving and transferring sound waves to internal ear:

A.	External ear	B.	Middle ear
C.	Both of these	D.	None of these

53.

Funnel-shaped part of the external ear is called:

A.	Auricle	B.	External auditory meatus
C.	Tympanum	D.	None of these

54.

Concha is a steep cavity found in the:

A.	Auricle of ear	B.	Tympanum of the ear
C.	Cochlea of the ear	D.	None of these

55.

Which of the following structures connect the middle ear with pharynx:

A.	Eustachian tube	B.	Fallopian tube
C.	Both of these	D.	None of these

56.

There are three ear ossicle in the middle ear, their names are:

A.	Incus, malleus and stapes	B.	Utriculus, sacculus and cochlea
C.	Auricle, tympanum and columella	D.	None of these

57.

Tympanic cavity is connected to auditory capsule through:

A.	Fenestra ovalis	B.	Fenestra rotunda
C.	Both of these	D.	None of these

58.

In which of the following order the three ear ossicles are arranged:

A.	Malleus, stapes, incus	B.	Incus, malleus, stapes
C.	Malleus, incus, stapes	D.	Stapes, malleus, incus

59.

External ears are characteristics of:

A.	Fishes	B.	Reptiles
C.	Mammals	D.	Amphibians

60.

Sense organs concerned with equilibrium are located in:

A.	Nasal chamber	B.	Internal ears
C.	Medulla oblongata	D.	Eyes