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The cutaneous plexus and the papillary plexus consist of

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Important Questions on Neural Control and Coordination

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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Select the incorrect statement regarding synapses:
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Explain the plasma membrane of a nerve cell with respect to the maintenance of potential.
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Each neuron has a cell body, axon, and dendrites. The dendrites are the protoplasmic extensions of the nerve cell. The axodendritic type of chemical synapse is formed by the association between the axon terminal of the pre-synaptic neuron and the dendrites of a post-synaptic neuron. The action potential causes the fusion of the synaptic vesicle to release the neurotransmitters for neurotransmission. Select the correct option from the following.
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Nissl bodies are mainly composed of
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse

Identify A, B, C and D in the following graph regarding nerve impulse transmission.

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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Receptor sites for neurotransmitters are present on
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Give an account of synaptic transmission,
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
The transport of which neutrotransmitter is interfered by cocaine?
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
When 'A' stands for Axon, 'D' for Dendrites, 'S' for Synapse and 'B' for Cell body, a typical sequence of structures between a receptor and an efferent is
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse

Assertion (A): Impulse transmission across electrical synapse is always faster than that of chemical synapse.

Reason (R): In electrical synapse, pre and post synaptic membranes are in very close proximity and have links called gap functions.

The correct option among the following is

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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Action potential in neurons is generated by a rapid influx of
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Which one of the following ion pairs is involved in nerve impulses?
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Give an account of synaptic transmission.
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Stimulation of a muscle fiber by a motor neuron occurs at:
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse

Assertion (A): In myelinated nerve fibres, action potentials are conducted at a faster rate.

Reason (R): The myelin present between nodes of Ranvier has concentrated Na and K voltage-gated channels.

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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Differentiate between dendrites and axons.
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse

All the following structures are found in an electrical synapse except

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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Four healthy friends in their thirties had an accident and got injuried. It resulted in damage and death of a few cells in their body. Which of the cells are least likely to be replaced by new cells?
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse

The given figure shows the structure of a neuron. Select the option that correctly identifies the parts labelled as A to E.
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
What used to be described as Nissl granules in a nerve cell are now identified as mitochondria.