Q. No.When we move from dark to light, we fail to see for some time but soon visibility becomes normal. It is:
1. Accommodation
2. Photoperiodism
3. Adaptation
4. Mutation
1. Accommodation
2. Photoperiodism
3. Adaptation
4. Mutation
Bipolar neurons are found in humans in:
1. Brain
2. Spinal cord
3. Embryonic stages
4. Olfactory epithelium
| 1. | Not enclosed by a Schwann cell and hence not enclosed by a myelin sheath. |
| 2. | Enclosed by a Schwann cell that does not form a myelin sheath. |
| 3. | Not enclosed by a Schwann cell but enclosed by a myelin sheath formed by oligodendrocytes. |
| 4. | Not found in the autonomous and the somatic neural system. |
The brain stem does not include :
1. Mid-brain
2. Medulla oblongata
3. Pons Varolii
4. Cerebellum
Which of the following is a major coordinating center for sensory and motor signaling for the cerebrum?
1. Hypothalamus
2. Thalamus
3. Corpora quadrigemina
4. Amygdala
The sensory neuron enters the spinal cord through:
| 1. | The dorsal root of the spinal nerve |
| 2. | The ventral root of the spinal nerve |
| 3. | Either dorsal or ventral root depending on the point of origin |
| 4. | Both dorsal and ventral roots of the spinal nerves |
From inside to outside the correct order of the following cells in the retina would be:
1. Ganglion cells - Photoreceptor cells - Bipolar cells
2. Ganglion cells - Bipolar cells - Photoreceptor cells
3. Bipolar cells - Photoreceptor cells - Ganglion cells
4. Photoreceptor cells - Ganglion cells - Bipolar cells
In the human eye, the visual acuity is highest at:
1. Macula lutea
2. Optic disc
3. Fovea centralis
4. Optic chiasma
Reissner's membrane separates:
1. Scala vestibuli and Scala media
2. Tympanic cavity and Pharynx
3. Fenestra rotundus and Fenestra ovalis
4. Scala media and Scala tympani
The resting membrane potential is established primarily due to:
1. Sodium-potassium pump
2. Efflux of potassium
3. Influx of sodium
4. Influx of chloride
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