NEETprep Bank NEET Zoology Neural Control and Coordination Questions Solved


In the resting state of neurons, diffusion due to concentration gradients, if allowed, would drive:
1. K+ into the cell
2. K+ and Naout of the cell
3. Na+ out of the cell
4. Na+ into the cell

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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

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The myelin sheath in the CNS is synthesized by:

(1) Oligodendrocytes

(2) Astrocytess

(3) Schwann cells

(4) Microglia

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The brain stem does not include :
1. Mid brain 
2. Medulla oblongata
3. Pons varolii
4. Cerebellum 

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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

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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

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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

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In the human eye, the visual acuity is highest at:

(1) Macula lutea

(2) Optic disc

(3) Fovea centralis

(4) Optic chiasma

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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

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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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