51. Ciliary muscles are found in

A Junction of choroid and iris in eye ball
B Inside larynx toregulate tension in eye ball
C Between rids to assist in breathing movement
D Lung
Answer :   Junction of choroid and iris in eye ball
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52. Owls moves freely during night since they have

A Adjustable pupil
B Only cones in retina
C Only rods in retina
D Vitamin a deficiency
Answer :   Only rods in retina
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53. The scala vestibule communicates with scala tympani through narrow canal called

A Ductus endolymphaticud
B Helicotrema
C Ductus utriculi
D Sacculo utricular canal
Answer :   Helicotrema
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54. The internal ear of rabbit originates from

A Ectoderm
B Endoderm
C Mesoderm
D All of the above
Answer :   Ectoderm
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55. Pacinian corpuscle pre3sent in skin detect

A Pain
B Temperature
C Pressure contact
D Movement
Answer :   Pressure contact
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56. Between malleus & incus is found

A Synovial hinge joint
B Synovial ball socket joint
C Pivot joint
D Glinding joint
Answer :   Synovial hinge joint
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57. Destruction of the anterior horn cell of the spinal cord would result in loss of :

A voluntary motor impulses
B commissural impulses
C integrating impulses
D sensory impulses
Answer :   voluntary motor impulses
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58. In the internal ear the 'organ of Corti' which bears hairs cells, is located in

A Scala tympani
B Scala media
C Scala vestibule
D Sacculus
Answer :   Scala media
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59. Chief function of semicircular canal of internal ear

A Balancing and hearing
B To perceive sound vibrations of high frequency
C To maintain dynamic equilibrium of the body while the body is inbalance
D To transmit sound vibration to the auditory nerve
Answer :   To maintain dynamic equilibrium of the body while the body is inbalance
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60. Afferent nerve fibre carries impulses from

A effector to central nervous system
B receptor to central nervous system
C central nervous system to muscles
D central nervous system to receptors
Answer :   receptor to central nervous system
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