Identify the correct match:
1. |
Fovea centralis |
Point of highest visual acquity |
2. |
Optic disc |
Visual cortex in cerebrum |
3. |
Ciliary body |
Light and dark adaptation |
4. |
Macula lutea |
Lacks any rods and cones |
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What would be true for the cells shown in the given diagram?
1. A is involved in gestation and B in olfaction 2. A is a part of sympathetic and B of parasympathetic division of ANS 3. A secretes myelin sheath around axons in CNS while B does it in PNS 4. A is responsible for scotopic vision and B is responsible for photopic vision |
What are the bones labeled A, B and C shown in the given diagram?
1. Malleus, Incus and Stapes respectively
2. Anvil, Hammer and Stirrup respectively
3. Stapes, Incus and Malleus respectively
4. Hammer, Stirrup and Anvil respectively
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Photopigments in the human eye are composed of:
1. a lipid and an ester of vitamin A
2. a protein and an ester of vitamin A
3. a lipid and an aldehyde of vitamin A
4. a protein and an aldehyde of vitamin A
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Identify the correct statement regarding the sections of the spinal cord shown in the given diagram:
I. A and D are part of the grey mater
II. B is motor and C is sensory
1. Only I | 2. Only II |
3. Both I and II | 4. Neither I nor II |
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The nose and taste buds contain:
1. mechanoreceptors | 2. photoreceptors |
3. chemoreceptors | 4. proprioceptors |
Above the rows of hair cells of Organ of Corti, there is a thin elastic membrane called:
1. Reissner’s membrane | 2. Basilar membrane |
3. Tectorial membrane | 4. Tympanic membrane |
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Which layer of the human eyeball forms the ciliary body?
1. Sclera | 2. Choroid |
3. Retina | 4. Cornea |
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In the given diagram of human eye showing retina, the parts labeled as A and B have high visual acquity and they respectively are called as:
1. Blind spot and macula lutea
2. Macula lutea and fovea centralis
3. Fovea centralis and macula lutea
4. Macula lutea and blind spot
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Arrange the following events in the correct chronological order of their occurrence [earliest to last] during hearing of a sound in humans:
I. Foot plate of stapes transmits vibrations to perilymph in scala vestibuli
II. Nerve impulse generated in associated afferent neurons
III. Ripple induced in basilar membrane
IV. Hair cells bend against tectorial membrane
V. Recognition by the auditory cortex
1. I – II – IV – III – V | 2. I – III – II – V – V |
3. I – III – IV – II – V | 4. III – I – IV – V – II |
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