Nervous System
ICSE · Class 10 · Biology
Most important questions from Nervous System for ICSE Class 10 Biology board exam 2026. MCQs, short answer, and long answer questions with marks.
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Which of the following are functions of the myelin sheath?
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Protects the axon, Insulates the axon, Speeds up impulse transmission
The myelin sheath has three main functions: it protects the axon, provides insulation, and increases the speed of nerve impulse transmission. It does not generate impulses or store nutrients.
Which part of the brain controls involuntary activities like heartbeat and breathing?
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Medulla oblongata
The medulla oblongata controls vital involuntary activities like heartbeat, breathing, and peristalsis. It has vital centers including cardiac, respiratory, and vasomotor centers.
Which of the following are parts of the forebrain?
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Cerebrum, Thalamus, Hypothalamus
The forebrain consists of the cerebrum and diencephalon. The diencephalon includes the thalamus and hypothalamus. The cerebellum and medulla oblongata are parts of the hindbrain.
What is the function of the cerebellum?
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Controls posture and balance
The cerebellum controls posture and balance of the body. It maintains correct posture and balance by receiving sensory information from the vestibular apparatus of the inner ear.
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