This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 95 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 95 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which part of the brain coordinates the actions of muscles and helps you maintain balance? A) Brain stem. B) Cerebrum. C) Cerebellum. D) Diencephalon. Show Answer Correct Answer: C) Cerebellum. 2. What does your CNS do? It? A) Makes oxygen. B) Opens your eyes. C) It smells your food. D) Processes information. Show Answer Correct Answer: D) Processes information. 3. What is NOT a part of the autonomic nervous system? A) Somatic NS. B) Sympathetic NS. C) Parasympathetic NS. D) None of above. Show Answer Correct Answer: A) Somatic NS. 4. An organised network of billions of specialized cells called nerve cells or neurons A) Nervous system. B) Digestive system. C) Respiratory system. D) Excretory system. Show Answer Correct Answer: A) Nervous system. 5. Each nerve is a bundle of hundreds or thousands of? A) Nerves. B) Neurons. C) Hair. D) Nucleus. Show Answer Correct Answer: B) Neurons. 6. Connects the cerebrum with the spinal cord; contains the Medulla Oblongata A) Brain. B) Central nervous system. C) Brainstem. D) Connecting neuron. Show Answer Correct Answer: C) Brainstem. 7. How many axons does each neuron have? A) 3. B) 2. C) 100s. D) 1. Show Answer Correct Answer: D) 1. 8. The Spinal CordThe spinal cord is protected by A) Medulla. B) Nerves. C) Neurons. D) Vertebrae. Show Answer Correct Answer: D) Vertebrae. 9. Which part of the peripheral nervous system deals with "flight or fight" activities? A) Somatic. B) Autonomic. C) Sympathetic. D) Parasympathetic. Show Answer Correct Answer: C) Sympathetic. 10. When you look at bright light what happens? A) Radial muscle contracts and pupil gets bigger. B) Radial muscle contracts and pupil gets smaller. C) Circular muscle contracts and pupil gets bigger. D) Circular muscle contracts and pupil gets smaller. Show Answer Correct Answer: D) Circular muscle contracts and pupil gets smaller. 11. Distance-far A) Long distance. B) Distance. C) At close range. D) None of above. Show Answer Correct Answer: A) Long distance. 12. An action potential occurs when the neuron is A) Polarized. B) Depolarized. C) Repolarized. D) Hyperpolarized. Show Answer Correct Answer: B) Depolarized. 13. Which ion channel corrects hyperpolarization and keeps the neuron in its resting state? A) Ligand gated Na. B) Mechanically gated Na. C) Voltage gated Na. D) Voltage gated K. E) Na/K pumps. Show Answer Correct Answer: E) Na/K pumps. 14. The nervous system is the network of nerves that carry messages from brain and spinal cord to and from various parts of the body A) True. B) False. Show Answer Correct Answer: A) True. 15. How many pairs of Cranial Nerves are in the body? A) 12. B) 31. C) 52. D) 2. Show Answer Correct Answer: A) 12. 16. Includes the auditory cortex which interprets sounds and languages we hear. A) Frontal lobe. B) Occipital lobe. C) Parietal lobe. D) Temporal lobe. Show Answer Correct Answer: D) Temporal lobe. 17. The plexus that supplies nerves to the arms is known as A) Cervical. B) Lumbar. C) Sacral. D) Brachial. Show Answer Correct Answer: D) Brachial. 18. The ..... system sends and receives messages from your senses. A) Somatic. B) Autonomic. C) Peripheral. D) Central. Show Answer Correct Answer: A) Somatic. 19. How many parts of the brain? A) 1. B) 2. C) 3. D) 4. E) 5. Show Answer Correct Answer: C) 3. 20. A complete loss of power/strength is called ..... A) Weakness. B) Paralysis. C) Tremor. D) Abnormal gait. E) Hoarseness. Show Answer Correct Answer: B) Paralysis. ← PreviousNext →Related QuizzesScience 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books