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Q. No.Which of the following options correctly distinguishes between the somatic and autonomic divisions of the peripheral nervous system?
1.
Somatic controls voluntary muscles, autonomic controls involuntary organs
2.
Somatic controls sensory functions, autonomic controls motor functions
3.
Somatic controls conscious activities, autonomic controls reflexes
4.
Somatic controls cranial nerves, autonomic controls spinal nerves
Subtopic: Nervous System |
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Subtopic: Nervous System |
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Chemical synapses differ from electrical synapses in:
| 1. | Speed of transmission |
| 2. | Presence of synaptic cleft |
| 3. | Need for neurotransmitters |
| 4. | All of the above |
Subtopic: Nervous System |
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Neurotransmitters are stored in:
| 1. | Dendrites | 2. | Cell body |
| 3. | Synaptic vesicles | 4. | Axon membrane |
Subtopic: Nervous System |
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The grey matter of cerebral cortex appears grey due to:
| 1. | Presence of blood vessels |
| 2. | Concentration of nerve cell bodies |
| 3. | Myelin sheaths |
| 4. | Connective tissue |
Subtopic: Fore Brain |
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The transmission of nerve impulse across a chemical synapse involves:
| 1. | Direct flow of electrical current |
| 2. | Release of neurotransmitters from synaptic vesicles |
| 3. | Gap junctions between neurons |
| 4. | Immediate electrical connection between neurons |
Subtopic: Origin of Resting Membrane Potential | Action Potential |
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Nodes of Ranvier are:
| 1. | Gaps between adjacent Schwann cells in unmyelinated neurons |
| 2. | Gaps between adjacent myelin sheaths in myelinated neurons |
| 3. | Junctions between dendrites and axons |
| 4. | Points where axons branch |
Subtopic: Nervous System |
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The autonomic neural system is responsible for:
| 1. | Voluntary muscle movements |
| 2. | Conscious thought processes |
| 3. | Control of involuntary organs and smooth muscles |
| 4. | Sensory perception |
Subtopic: Nervous System |
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Electrical synapses are characterized by:
1. Presence of neurotransmitters
2. Direct flow of current between neurons
3. Wide synaptic cleft
4. Slower transmission than chemical synapses
1. Presence of neurotransmitters
2. Direct flow of current between neurons
3. Wide synaptic cleft
4. Slower transmission than chemical synapses
Subtopic: Origin of Resting Membrane Potential | Action Potential |
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The given figure of the sagittal section of human brain has a bundle of nerve fibres connecting the brain's left and right hemispheres, allowing them to communicate.
Name the bundle:
1. Corpus striatum
2. Corpus callosum
3. Corpus luteum
4. Corpus spongiosum
Name the bundle:
1. Corpus striatum
2. Corpus callosum
3. Corpus luteum
4. Corpus spongiosum
Subtopic: Fore Brain |
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