Q. No.The process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies is known as:
1. adaptation
2. accommodation
3. amblyopia
4. visual acquity
When a patient is given an analgesic his pain:
1. increases
2. decreases
3. remains unaltered
4. first increases than decreases
1. increases
2. decreases
3. remains unaltered
4. first increases than decreases
In the internal ear, the membranous labyrinth is filled with:
1. cerebrospinal fluid
2. plasma
3. endolymph
4. perilymph
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Receptor sites for neurotransmitters are present on
1.membranes of synaptic vesicles
2. pre-synaptic membrane
3. tips of axons
4. post-synaptic membrane
The ear ossicle, stapes, transmits vibrations from incus to the:
1. malleus
2. tympanic membrane
3. oval window
4. round window
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Reissner's membrane is a thin membrane that separates the scala media from the:
1. oval window
2. scalavestibuli
3. scala tympani
4. round window
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The primary auditory area is located in:
1. medial geniculate body of thalamus
2. midbrain
3. temporal lobe
4. medulla oblongata
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The pigment that gets oxidized/bleached/decomposed when exposed to light is:
1. retinol
2. retinoyl ester
3. rhodopsin
4. iodopsin
What type of neurons is found in the olfactory membrane?
1. pseudo-unipolar
2. multipolar
3. unipolar
4. bipolar
The maculae are the sensory organs in the:
1. cochlear duct
2. saccule
3. semicircular canals
4. semicircular ducts
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