Q. No.Visual reflexes are coordinated by the part of the human brain known as the:
1. cerebellum
2. superior colliculus
3. inferior colliculus
4. cerebral peduncles
1. cerebellum
2. superior colliculus
3. inferior colliculus
4. cerebral peduncles
The part of the human brain widely regarded as ‘the gate-keeper to consciousness’ is the:
1. vasomotor center
2. corpora quadrigemina
3. diencephalon
4. reticular formation
| 1. | Medulla oblongata | 2. | Pons |
| 3. | Mid brain | 4. | Cerebellum |
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The auditory tube [also called as the Eustachian tube] functions in equalizing pressure between the middle ear and:
| 1. throat | 2. inner ear |
| 3. outer ear | 4. cochlea |
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In the given diagram of olfactory membrane, identify the olfactory receptor cell:
| 1. A | 2. B |
| 3. C | 4. D |
When one enters a dark room from a bright area:
1. retinol is converted to rhodopsin and eye sensitivity is decreased
2. rhodopsin is converted to retinol and eye sensitivity is decreased
3. rhodopsin is converted to retinol and eye sensitivity is increased
4. retinol is converted to rhodopsin and eye sensitivity is increased
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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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