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NERVOUS SYSTEM Q+A

3 pages, 40 questions, 35 questions with responses, 60 total responses,    0    0
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Question .1. Name the following : (i) Transfers impulses from inner ear to brain. (ii) The part of brain which is concerned with memory. (iii) The protective covering of the brain. (iv) The junction between two nerve cells. (v) The fluid that is present inside and outside the brain. (vi) Protective covering of the brain and spinal cord. Question .2. Write true or false. Insert a word if false. (i) A reflex action is a spontaneous response to a stimulus. Question .3. Define Synapses Question .4. Choose : The dorsal root ganglion of the spinal cord contains cell bodies of (motor, sensory, intermediate) neurons. Question .5. Write the structural and functional activity of : (i) Cerebellum. (ii) Myelin sheath. (iii) Meninges. Question .6. Write the function of Medulla oblongata. Question .7.Write in logical sequence : (i) Dorsal root ganglion, receptor, effector, ventral root ganglion, associated neuron.\ Question .8. Differentiate between : (i) Medulla oblongata and Cerebellum. (ii) Cerebrum and spinal cord. (iii) Cerebrum and Cerebellum. (iv) Sensory and motor neuron. (v) Sensory and motor nerve Question .9. Write the category and the odd one out : (i) Coughing, sneezing, blinking, eating. (ii) Corpus luteum, corpus callosum, pons, cerebellum. (iii) Pleura, pericardium, meninges, spinal cord. (iv) Pons, cerebellum, medulla oblongata, cerebrum. Question .10. Answer briefly : (i) What is meant by reflex action ? (ii) State simple, conditioned reflexes or none. Sneezing, blushing, contraction of pupil, lifting up a book, knitting without looking, sudden application of brakes without thinking. Question . 11. The following diagram is that of a human brain. Guidelines 1 to 5 indicate different parts of the surface of the brain and these are as follows: Fig. 1. Frontal lobe of cerebrum. 2. Temporal lobe of cerebrum. 3. Occipital lobe of cerebrum. 4. Cerebellum. 5. Medulla oblongata. Study the diagram and answer the following questions : I. What handicaps would result from : (i) Damage to part numbered 3 ? (ii) Damage the part numbered 4 ? II Mention one main function of each of the parts numbered 1, 2 and 5. Question .12. The following diagram represents the human brain as seen in an external view. Study the same and then answer the question that follow : Fig. (i) Name the parts labelled 1, 2, 3 and 4. (ii) Mention the difference in the arrangement of the nerve cells in the parts marked 1 and 4 . (iii) What is the main function of the parts marked 3 and 4 . (iv) Name the sheet of nerve fibres that connect the two halves of the part labelled 1 . (v) What is the structural and functional unit of the nervous system ? (vi) Name the fluid that surrounds the brain. State its function.

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