The nerve that carries hunger signals to brain ………
A) Coronary nerve
B) Vagus nerve
C) 13th cranial nerve
D) Medulla oblongata
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Seasonal hunger is related to …………………
D) cycles of food grain harvesting
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The light signals are transmitted to the brain through ……………………….
D) optic nerves
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Nerves that bring nerve signals from the sense organs are called
C) sensory nerves
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The part of brain that joins fore brain and mid brain
Answer is (A) Medulla
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Conduction of nerve impulse occurs at a faster rate in medullated nerve fibre.
1. Medullated nerve fibres have myelin sheath around the axon. This myelin sheath is secreted by Schwann cells. 2. Myelin sheath prevents the loss of the impulse during conduction. 3. Myelin sheath...
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When we are hungry, the hunger pangs arise ip our stomach. These hunger pangs are controlled by ………
A) diencephalon and 10th cranial nerve
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Which of the following is not concerned with hunger pang signals ?
Answer is (D) Umami
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The receptors which send the signals of smell to brain ………
B) Olfactory receptors
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A. In all the body systems, the brain is so important. R. Brain co-ordinates all the systems.
A) A and R both are correct. R is the correct explanation to A .
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A: Hydra has a nerve net but no brain. R: All its neurons are apolar and connected.
Correct Answer - A If both assertion & reason are true and the reason is the correct explanation of the assertion, then mark (1).
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