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All sensory pathways to the cerebral cortex synapse at the:

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Important Questions on Nervous system and Sense Organs

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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
Select the incorrect statement regarding synapses:
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
Explain the plasma membrane of a nerve cell with respect to the maintenance of potential.
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
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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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
Nissl bodies are mainly composed of
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System

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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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
The transport of which neutrotransmitter is interfered by cocaine?
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
Give an account of synaptic transmission,
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System

Label the parts corresponding to the alphabets in the given diagram given?

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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
Which one of the following ion pairs is involved in nerve impulses?
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System

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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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
The two components of autonomous nervous system have antagonistic actions. But in certain cases their effects are mutually helpful. Which of the following statement is correct?
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System

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

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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
Oligodendrocytes and astrocytes are neuroglial cells found in ___.
a) Peripheral nervous system involved in the formation of the myelin sheath.
b) Central nervous system in which oligodendrocytes form myelin sheath and astrocytes bind neurons with capillaries.
c) Autonomic nervous system in which both cells provide support.
d) Sympathetic nervous system in which the two cells help in conduction.
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
Receptor sites for neurotransmitters are present on
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
The cells which form blood brain barrier in the central nervous system are
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System

The diagram is given below the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the questions.

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Give the technical term for the point of contact between the two nerve cells.

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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
Activation of sympathetic nervous system:
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
Give an account of synaptic transmission.
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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
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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Science>Biology>Nervous system and Sense Organs>Introduction to Nervous System
Stimulation of a muscle fiber by a motor neuron occurs at: