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Neurofibrils are the characteristic feature 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
Neurotransmitter released at the neuromuscular junction of a voluntary muscles is:
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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
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
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): 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
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

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
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
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
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
Receptor sites for neurotransmitters are present on
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
In the central nervous system, myelinated fibres form the ..., while the non-myelinated fibre cells form the ......
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
A bipolar neuron has
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Myelinated nerve fibres are white coloured because of:
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
The nerves leading to the central nervous system are called :-
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Four healthy people in their twenties got involved in injuries resulting in damage and death of few cells of the following. Which of the cells are the 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
Longest cell in human body may be
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Longest cell in the body is:
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
The myelin sheath around the axon is produced by which type of neuroglial cells?