This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Nervous System – Quiz 255 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 255 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is our body's first line of protection from harmful things in our environment. A) ANS. B) CSF. C) PNS. D) CNS. Show Answer Correct Answer: C) PNS. 2. The ..... separates the axon terminal from the dendrites of the adjacent cell A) Synaptic cleft. B) Conclusion. C) Axon terminal. D) Dendrite. Show Answer Correct Answer: A) Synaptic cleft. 3. When a threshold is achieved, an event called the ..... potential occurs A) Release. B) Down flow. C) Uptake. D) Uptown. Show Answer Correct Answer: C) Uptake. 4. What is the role of the sympathetic nervous system? A) Control you "fight or flight" response. B) Control & coordination of the body. C) Control skeletal muscles. D) Control involuntary movements. Show Answer Correct Answer: A) Control you "fight or flight" response. 5. All parts of the Nervous System except for the Brain and Spinal cord A) Nerves. B) Central Nervous System. C) Peripheral Nervous System. D) Neuron. Show Answer Correct Answer: C) Peripheral Nervous System. 6. What is the part of the neuron that receives impulses? A) Nodes of Ranvier. B) Axon. C) Cell body. D) Conclusion. Show Answer Correct Answer: C) Cell body. 7. Gaps in the myelin sheath that help transmit the impulse quickly. A) Axon terminal. B) Dendrites. C) Nodes of Ranvier. D) Axons. Show Answer Correct Answer: C) Nodes of Ranvier. 8. Which of the following is not part of the inner ear? A) Membranous labyrinth. B) Cochlea. C) Vestibule. D) Semicircular canals. E) Ossicles. Show Answer Correct Answer: E) Ossicles. 9. What is the inner most layer of the meninges that touch the brain? A) Arachnoid. B) Cerebellum. C) Dura mater. D) Pia mater. Show Answer Correct Answer: D) Pia mater. 10. Gaps in the myelin sheath that expose the axon membrane A) Ganglia. B) Cerebral cortex. C) Nerves. D) Nodes. Show Answer Correct Answer: D) Nodes. 11. The nervous system works directly with the ..... system to control the expanding and contracting of our lungs. A) Nervous. B) Excretory. C) Respiratory. D) Endocrine. Show Answer Correct Answer: C) Respiratory. 12. Which of the following is not found in the diencephalon? A) Hypothalamus. B) Thalamus. C) Pineal body. D) Postcentral gyrus. Show Answer Correct Answer: D) Postcentral gyrus. 13. If you step on a nail ..... what type of neuron will take that signal TO the spinal cord? A) Receptors. B) Interneurons. C) Sensory. D) Motor. Show Answer Correct Answer: C) Sensory. 14. Anything that causes an action or response in a living thing. A) Conclusion. B) Stimulus. C) Chemoreceptor. D) Paralysis. Show Answer Correct Answer: B) Stimulus. 15. Read the following and choose the correct neuroglia. "protects the chemical environment of the brain" A) Ependymal. B) Astrocyte. C) Oligodendrocyte. D) Microglia. Show Answer Correct Answer: B) Astrocyte. 16. Which of the following statements about the PNS is INCORRECT. A) It is made up of nerves that are outside the brain and the spinal cord. B) Main purpose to transmit information from sensors to the CNS and from the CNS out to the body. C) It also transmit information between the organs of the body. D) It is subdivided into the somatic and autonomic systems. E) None of the other 4 statements are INCORRECT. Show Answer Correct Answer: E) None of the other 4 statements are INCORRECT. 17. The nervous system is made of the A) Brain, spinal cord, neurons. B) Brain, heart, lungs. C) Brain, spinal cord, lungs. D) Brain, spinal cord, lungs. Show Answer Correct Answer: A) Brain, spinal cord, neurons. 18. .....cells help destroy bacterial cells and cellular debris. A) Astrocytes. B) Schwann. C) PNS. D) Microglial. Show Answer Correct Answer: D) Microglial. 19. Which of the following surrounds the axon A) Cyton. B) Myelin sheath. C) Dendrites. D) Neuron. Show Answer Correct Answer: B) Myelin sheath. 20. Largest part of a typical neuron; contains the nucleus and much of the cytoplasm A) Dendrites. B) Neurons. C) Cell body. D) Axon. Show Answer Correct Answer: C) Cell body. 21. The cerebellum is at the base and the back of the brain. The cerebellum is responsible for ..... A) Vision. B) Balance and coordination. C) Thinking and voluntary movement. D) Breathing, heart rate and blood pressure. E) Maintaining body temperature, water balance and metabolism. Show Answer Correct Answer: B) Balance and coordination. 22. What is inside of the Cochlea? A) Liquid, and tiny hairs. B) Water, and tiny hairs. C) Acid, and hairs. D) Water, and fuzz. Show Answer Correct Answer: A) Liquid, and tiny hairs. 23. The messengers of the body are the ..... A) Spinal cord. B) Nerves. C) Brain. D) None of above. Show Answer Correct Answer: B) Nerves. 24. What is the most common surgery in the United States A) Myopia Surgery. B) Glaucoma Reduction Surgery. C) Hyperopia Surgery. D) Cataract Removal Surgery. Show Answer Correct Answer: D) Cataract Removal Surgery. 25. Explain pupil. (part of eye) A) Coloured part of the eye. B) Black part of the eye. C) Black spot in front of the eye. It is the opening through which light enters the eye. D) None of above. Show Answer Correct Answer: C) Black spot in front of the eye. It is the opening through which light enters the eye. 26. The lobe of the brain for hearing and memories? A) Frontal. B) Occipital. C) Temporal. D) Parietal. Show Answer Correct Answer: C) Temporal. 27. Blinking is an example of a ..... A) Reflex. B) Duroflex. C) Subflex. D) Biflex. Show Answer Correct Answer: A) Reflex. 28. What is the threshold for NA channel to open? A) -30 mV. B) 50 mV. C) 30 mV. D) -50 mV. Show Answer Correct Answer: D) -50 mV. 29. Can your brain override a reflex reponse? A) Yes. B) No. Show Answer Correct Answer: A) Yes. 30. Which group of blood cells play a role in the body's defense mechanism? A) RBC. B) WBC. C) Platelet. D) None of above. Show Answer Correct Answer: B) WBC. 31. What is the name of the process that returns a stimulated neuron back to its resting potential? A) Depolarization. B) Stimulation. C) Repolarization. D) Action potential. Show Answer Correct Answer: C) Repolarization. 32. What happens to the eardrum when sound hits, causing transmission of sound to the inner ear? A) It opens. B) It refracts the sound. C) It grows hair. D) It vibrates. Show Answer Correct Answer: D) It vibrates. 33. What is the primary role of the interneuron (association neuron)? A) Carry information from the central nervous system to muscles and/or the viscera. B) Form a lipid-protein (lipoprotein) cell membrane on the outside of axons. C) Transmit nerve impulses from the skin and organs to the central nervous system. D) Connect motor and sensory neurons in their pathways. E) Detect the amount of stretch in skeletal muscles or tendons and their joints. Show Answer Correct Answer: D) Connect motor and sensory neurons in their pathways. 34. Where do nerve impulses travel along to reach visual processing areas within the cerebral cortex? A) Optic nerves. B) Trochlear nerves. C) Abduct the nerves. D) Olfactory nerves. Show Answer Correct Answer: A) Optic nerves. 35. Efferent neurons; carry instructions from the CNS to muscles and glands A) Sensory neurons. B) Somatic nervous system. C) Motor neurons. D) Neurons. Show Answer Correct Answer: C) Motor neurons. 36. BUNDLES OF NEURONS THAT EXTEND FROM THE BRAIN AND SPINAL CORD TO OTHER PARTS OF THE BODY A) DENDRITES. B) AXONS. C) SPASMS. D) NERVES. Show Answer Correct Answer: D) NERVES. 37. What are the impacts of Parkinson's and Alzheimer's on the nervous system? A) Neuronal degeneration and protein deposits. B) Reduced inflammation and immune response. C) Increased blood flow and oxygenation. D) Enhanced memory and cognitive function. Show Answer Correct Answer: A) Neuronal degeneration and protein deposits. 38. Which of the following does not help protect our brain? A) Fluid. B) Connective tissue. C) Muscles. D) The skull. Show Answer Correct Answer: C) Muscles. 39. In the digestive system, starch is broken down into ..... A) Amino acids. B) ATP energy. C) Glucose. D) Oxygen. Show Answer Correct Answer: C) Glucose. 40. What type of celles do the taste and smelle senses use? A) Ophthalmoceptors. B) Olfactoreceptors. C) Taste receptors. D) Chemoreceptors. Show Answer Correct Answer: D) Chemoreceptors. 41. Where is the peripheral nervous system located? A) In the skull and spinal canal. B) In the brain and spinal cord. C) In the nerves of the body. D) In the gut. Show Answer Correct Answer: C) In the nerves of the body. 42. Progressive destruction of myelin sheaths, sheaths turn into scleroses A) Parkinson's disease. B) Alzheimer's. C) Cerebrovascular accident. D) Multiple sclerosis. Show Answer Correct Answer: D) Multiple sclerosis. 43. Another way for the neurotransmitter to be removed from the synaptic cleft is by ..... where there is uptake by surrounding glial cells. A) Extrusion. B) Diffusion. C) Reuptake. D) None of above. Show Answer Correct Answer: B) Diffusion. 44. All the parts of the nervous system except the brain and the spinal cord belong to the? A) Peripheral Nervous System. B) Nervous System. C) Somatic Nervous System. D) Afferent Nerves. Show Answer Correct Answer: A) Peripheral Nervous System. 45. The ..... is the smallest part of the brain. A) Brain stem. B) Cerebrum. C) Cerebellum. D) None of above. Show Answer Correct Answer: A) Brain stem. 46. The role of the synapse is A) Site for the transmission of neurotransmitter molecules. B) Site for nerve transmission. C) Conduct an action potential. D) To increase sodium uptake from the extracellular fluid. Show Answer Correct Answer: A) Site for the transmission of neurotransmitter molecules. 47. True o FalseIn Ohms's Law:Voltage and resistance are inversely related A) True. B) False. Show Answer Correct Answer: B) False. 48. Where are sensory neurons located? A) Heart and lungs. B) Spinal cord and brain. C) Muscles and bones. D) Eyes, ears, and skin. Show Answer Correct Answer: D) Eyes, ears, and skin. 49. The Vertebrae join together to form a strong column called the ..... A) Vertebrae. B) Vertebral Column. Show Answer Correct Answer: B) Vertebral Column. 50. Lobe at the top or crown of the head. A) Temporal lobe. B) Frontal lobe. C) Occipital lobe. D) Parietal lobe. Show Answer Correct Answer: D) Parietal lobe. 51. Defect of the spinal column in which the spinal cord and/or its covering protrude outside the vertebrae is called Amyotrophic Lateral Sclerosis. A) False. B) True. Show Answer Correct Answer: A) False. 52. Fluid that flows throughout the brain and around the spinal cord. A) Synovial fluid. B) Cerebrospinal fluid. Show Answer Correct Answer: B) Cerebrospinal fluid. 53. What does CVA stand for? A) Cerebellar Vein Angiogram. B) Cerebrovascular Accident. C) Cerebralvacuum attachment. D) Coinvault accident. Show Answer Correct Answer: B) Cerebrovascular Accident. 54. The gaps in the myelin sheath along axons are called ..... A) Myelin gaps. B) Nodes of Ranvier. C) Synapses. D) Saltatory nodes. Show Answer Correct Answer: B) Nodes of Ranvier. 55. This part of the eye is only present in animals (not humans) and allows animals to see in the dark. A) Vitreous humor. B) Aqueous humor. C) Retina. D) Tapetum. Show Answer Correct Answer: D) Tapetum. 56. Cell body is number ..... A) 6. B) 3. C) 2. D) 1. Show Answer Correct Answer: D) 1. 57. These nerve fibers are turned on when extra is needed- A) Parasympathetic. B) Sympathetic. Show Answer Correct Answer: B) Sympathetic. 58. ATP each lose TWO phosphates to adenylyl cyclase. After losing two phosphate ATP becomes ..... A) Adenylyl phosphate. B) Protein kinase. C) ADP. D) Cyclic AMP (cAMP). Show Answer Correct Answer: D) Cyclic AMP (cAMP). 59. The thin layer of the meninges is the A) Dura mater. B) What's the matter. C) Pia mater. D) Arachnoid mater. Show Answer Correct Answer: C) Pia mater. 60. ..... is the primary inhibitory neurotransmitter in the CNS causing-Cl channels to open rather than +Na. A) GABA. B) Dopamine. C) Glucose. D) Glutamate. Show Answer Correct Answer: A) GABA. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesNervous System Quiz 1Nervous System Quiz 2Nervous System Quiz 3Nervous System Quiz 4Nervous System Quiz 5Nervous System Quiz 6Nervous System Quiz 7Nervous System Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books