Choose the right answer from the 1.

Choose the right answer from the 1. Barbiturates exerts the following actions except : Anticonvulsant antianxiety analgesics respiratory depressant 2. The neurons of motor pathway control : Stress reaction Organs and glands Involuntary muscles Voluntary muscles 3. What is the purpose of the blood brain barrier It provides another layer of CSF It protects the peripheral nervous system It transmits electrical signals between neurons It supplies nutrients while preventing hazardous chemicals from reaching the brain None of the above 4. The …………… nervous system controls the skeletal muscles central sympathetic parasympathetic somatic 5. Neurotransmitter involved in pain relief is : Endorphins Serotonin Acetylcholine Norepinephrine 6. The part of the peripheral system that brings information to the central nervous system is : Central Afferent Efferent Peripheral 7. Coordinators of central nervous system are Brain and spinal cord Pituitary glands Endocrine glands Skin and blood vessels 8. Quick involuntary response which is produced by central nervous system is called : Autonomic response Flight response Reflex arc Reflex action 9. The central nervous system is connected with the peripheral nervous system by all the following types of nerve fibers except Postganglionic autonomic fibers Preganglionic autonomic fibers Somatic motor fibers Autonomic sensory fibers 10. The brainstem does not include : midbrain medulla cerebellum pones 11. Which of the following neurotransmitter is known to be associated with sleep , mood and appetite ? Serotonin Acetylcholine GABA Dopamine 12. A central nervous system (CNS) stimulant of the methylxanthine class : Amphetamine Caffeine Strychnine Picrotoxin 13. —————————- neurons form the afferent division of the PNS VISCERAL SENSORY Sensory Somatic sensory Neural sensory 14. The brain and spinal cord comprise the ——————- nervous system Afferent efferent central peripheral 15. which of the following medications may retard the progress of Alzheimer’s disease deterioration? donepezil L-dopa Prednisone Vitamin B12 16. The central nervous system includes all of the following components, except ;- Spinal cord Medulla oblongata Autonomic ganglia Diencephalon 17. Which one from the following used internally for relieving respiratory distress. also for use as an antidote in poisoning by CNS depressants, especially barbiturates? Amphetamine Ethanol Caffeine Picrotoxin 18. All are cerebral stimulants except : picrotoxin Caffeine Theophylline Theobromine None of the above 19. A psychotomimetic drug Lysergic and diethylamide Caffeine Chloral hydrate Picrotoxin 20. If an individual were to sustain a significant injury to their right cerebral hemisphere , where might somatosensory loss of functioning occur ? Right side of the body Left side of the body There is no evidence that loss of functioning occur Both sides of the body 21. The most common cause of dementia in the general population is: epilepsy vascular disease Alzheimer’s disease Parkinson’s disease 22. Parkinson’s disease results from damage of Caudate nucleus Subthalamic nucleus Globus pallidus Substantia nigra 23. What is the purpose of cerebral spinal fluid ” It fills the subarachnoid space It protects the central nervous system It reduce pressure at the base of the brain It cushions the brain It reduce the weight of the brain All of the above

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