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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