This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 466 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 466 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Medullary A) Disease of nerves. B) Pertaining to the lower part of the brain closest to the spinal cord. C) Inflammation of the brain. D) None of above. Show Answer Correct Answer: B) Pertaining to the lower part of the brain closest to the spinal cord. 2. How is the lens able to focus at different lengths? A) During action potential sodium atoms are going to rush in because of voltage gated channels potassium switches places with the sodium. B) Constricts to let appropriate amount of light in. C) Has muscles attached to it so it can focus light. D) Sympathetic divisionFight or flight responseparasympathetic divisionDecreases respiration and heart rate and increases digestion. Show Answer Correct Answer: C) Has muscles attached to it so it can focus light. 3. How do impulses travel along myelinated fibers? A) The impulse "leaps" from node to node. B) The impulse flows directly through the myelin sheath. C) The impulse travels through the dendrites. D) The impulse travels through the astrocytes. Show Answer Correct Answer: A) The impulse "leaps" from node to node. 4. The center region of a neuron with a nucleus A) Dendrites. B) Axon. C) Axon terminal. D) Cell body. Show Answer Correct Answer: D) Cell body. 5. Mrs. Avery speed walked 2 miles in 10 minutes, what is her speed? A) 0.2 miles/min. B) 2 miles/min. C) 20 miles/min. D) 40 miles/min. Show Answer Correct Answer: A) 0.2 miles/min. 6. Which one is involved in restoring the ion concentrations of the sodium and postassium ions inside and outside the neuron after repolarization? A) Na+/K+ pump moves 3Na+ in for every 2K+ out. B) Na+/K+ pump moves 3K+ in for every 2Na+ out. C) Na+/K+ pump moves 3Na+ out for every 2K+ in. D) Na+/K+ pump moves 3K+ out for every 2Na+ in. Show Answer Correct Answer: C) Na+/K+ pump moves 3Na+ out for every 2K+ in. 7. Chest pain A) Stomach ache. B) Headache pain. C) Chest pain. D) None of above. Show Answer Correct Answer: C) Chest pain. 8. As the neuron fires, there's a reversal in ..... as the axon undergoes ..... A) Direction, depolarization. B) Charge, depolarization. C) Direction, repolarization. D) Charge, repolarization. Show Answer Correct Answer: B) Charge, depolarization. 9. Shape of a neuron with two processes extending from the neuron cell body the axon and one dendrite. A) Bipolar. B) Thalamus. C) Neuron. D) Ganglion. Show Answer Correct Answer: A) Bipolar. 10. Which of the areas of the cerebral cortex receives touch sensation from the skin? A) Somatic sensory area. B) Primary motor area. C) Premotor area. D) Primary visual cortex. Show Answer Correct Answer: A) Somatic sensory area. 11. Afferent A) Conveying toward a center. B) Chronic degenerative disease of the CNS, includes resting tremors. C) Disorder characterized by chronic, debilitating emotional response to a traumatic event. D) Emotional disorder characterized by feelings of apprehension, tension, or uneasiness. Show Answer Correct Answer: A) Conveying toward a center. 12. What does the integration function of the nervous system include? A) Motor functions. B) Somatic and autonomic nervous system. C) Sensory functions such as memory, learning, and emotions. D) Receiving information about the external environment. Show Answer Correct Answer: C) Sensory functions such as memory, learning, and emotions. 13. How many sections of the Brain are there? A) 6. B) 4. C) 2. D) 1. Show Answer Correct Answer: A) 6. 14. Cloister A) Enclosed space, barrier. B) Elevator. C) Small. D) Together. Show Answer Correct Answer: A) Enclosed space, barrier. 15. The CNS is made up of A) Spinal cord and nerves. B) Brain and spinal cord. C) Nerves and brain. D) None of above. Show Answer Correct Answer: B) Brain and spinal cord. 16. Question 5 A) A. B) B. C) C. D) D. Show Answer Correct Answer: C) C. 17. When messages travel creating an electrical impulse is moves through the ..... A) Cell body. B) Nucleus. C) Axon. D) Myelin sheath. Show Answer Correct Answer: C) Axon. 18. At the axon terminals the action potential can ..... A) Continue in another neuron. B) Cause the release of NT's across a synapse. C) Both answers are correct. D) None of above. Show Answer Correct Answer: C) Both answers are correct. 19. Network of fine threads that extend into axons A) Neurofibrils. B) Neuroglial. C) Neurilemma. D) Nodes of Ranvier. Show Answer Correct Answer: A) Neurofibrils. 20. That protects the spinal cord? A) The vertebral column. B) The brain. C) Back muscles. D) The rib cage. Show Answer Correct Answer: A) The vertebral column. ← PreviousNext →Related QuizzesNervous System Quiz 1Nervous System Quiz 2Nervous System Quiz 3Nervous System Quiz 4Nervous System Quiz 5Nervous System Quiz 6Nervous System Quiz 7Nervous System Quiz 8Nervous System Quiz 9Nervous System Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books