Q. No.The amount of light entering the human eye is regulated by:
1. Pupil
2. Iris
3. Cornea
4. Ciliary body
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The tympanic membrane:
1. is covered on both sides by skin
2. is covered on both sides by mucus membrane
3. is covered with skin on the outside and by mucus membrane on the inside
4. is covered with skin on the inside and by mucus membrane on the outside
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The given diagram shows a section of a part of cochlea. A, B and C respectively are:
1. Reissner’s membrane, Basilar membrane and Tectorial membrane
2. Reissner’s membrane, Tectorial membrane and Basilar membrane
3. Basilar membrane, Tectorial membrane and Reissner’s membrane
4. Tectorial membrane, Reissner’s membrane and Basilar membrane
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The auditory receptors in the human ear will be:
| 1. Organ of Corti | 2. Hair cells |
| 3. Macula | 4. Cupula |
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The olfactory bulb can be regarded as the extension of:
| 1. Brain stem | 2. Limbic system |
| 3. Diencephalon | 4. Corpora quadrigemina |
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Match each item in Column I with one in Column II and select the correct answer from the codes given:
|
|
COLUMN I |
|
COLUMN II |
|
A. |
Utricle |
a. |
linear acceleration of the head in the vertical plane |
|
B. |
Saccule |
b. |
linear acceleration of the head in the horizontal plane |
|
C. |
Cochlea |
c. |
detects rotation of head |
|
D. |
Semicircular canals |
d. |
Hearing |
Codes
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | d | c |
| 3. | b | a | c | d |
| 4. | a | b | d | c |
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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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