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Neural Control and Coordination

Short Answer Type

81. Write a note on different divisions of nervous systems.

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82. Define the term reflex action and discuss its types.

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Long Answer Type

83.

Discuss the mechanism of reflex action.

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Short Answer Type

84. What is an action potential ?

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85. Why does the nerve impulse flow more rapidly in myelinated nerve fibres than in the non-myelinated fibres ?

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86. Draw labelled diagram of the following
(d) Ear.

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87. State one difference between the afferent and the efferent fibres.

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88.

Differentiate between

(e) Cerebrum and Cerebellum

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89. Describe the main properties of nervous tissue.

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90. Define receptor and classify it.

Definition : Receptor is a sensory organ which receives stimuli from environment or from inside the animal and passes impulses to the nervous system. These are usually present on the post-synaptic membrane .

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