During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?
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Which one of the followings is the largest portion of the brain in humans?
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Which one of the following pairs of structures distinguishes a nerve cell from other types of cell?
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Which one of the following is an example of negative feedback loop in humans?
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How many laminae are present in the grey matter of spinal cord?
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Unidirectional transmission of a nerve impulse through nerve fibre is due to the fact that:
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The function of vagus nerve innervating the heart is to
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Cornea transplant in humans is almost never rejected. This is because:
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When sympathetic nervous system is activated it causes the secretion of
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Given below is a table comparing the effects of sympathetic and parasympathetic nervous system for four features (a-d). Which one feature is correctly described? Feature | Sympathetic Nervous System | Parasympathetic Nervous System |
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(a) Salivary gland | Stimulates secretion | Inhibits secretion | (b) Pupil of the eye | Dilates | Constricts | (c) Heart rate | Decreases | Increases | (d) Intestinal peristalsis | Stimulates | Inhibits |
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