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

Subtopic:  Inner Ear: Vestibular Apparatus (OLD NCERT) |
 76%

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The diagram shows the section of cochlea. Identify the correct statements:

 

I. E and G are filled with perilymph
II. C is the tectorial membrane
III. B is the otolith organ

1. Only I and II 2. Only I and III
3. Only II and III 4. I, II and III
Subtopic:  Inner Ear: Cochlea (OLD NCERT) |

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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

Subtopic:  Basic Anatomy of Human Eye: 1 (OLD NCERT) |
 57%
From NCERT

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Which layer of the human eyeball forms the ciliary body?

1. Sclera 2. Choroid
3. Retina 4. Cornea
Subtopic:  Basic Anatomy of Human Eye (OLD NCERT) |
 80%
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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
Subtopic:  Inner Ear: Cochlea (OLD NCERT) |
 76%
From NCERT

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The nose and taste buds contain:

1. mechanoreceptors 2. photoreceptors
3. chemoreceptors 4. proprioceptors
Subtopic:  Smell & Taste (OLD NCERT) |
 84%

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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
Subtopic:  Nervous System |
 57%
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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

Subtopic:  Human Eye (OLD NCERT) |
 88%
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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

Subtopic:  Outer & Middle Ear (OLD NCERT) |
 91%
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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
Subtopic:  Nervous System |
 68%

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