This quiz works best with JavaScript enabled. Home > Science > 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. 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. 2. How many axons does each neuron have? A) 3. B) 2. C) 100s. D) 1. Show Answer Correct Answer: D) 1. 3. The Spinal CordThe spinal cord is protected by A) Medulla. B) Nerves. C) Neurons. D) Vertebrae. Show Answer Correct Answer: D) Vertebrae. 4. 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. 5. 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. 6. Distance-far A) Long distance. B) Distance. C) At close range. D) None of above. Show Answer Correct Answer: A) Long distance. 7. An action potential occurs when the neuron is A) Polarized. B) Depolarized. C) Repolarized. D) Hyperpolarized. Show Answer Correct Answer: B) Depolarized. 8. 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. 9. 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. 10. How many pairs of Cranial Nerves are in the body? A) 12. B) 31. C) 52. D) 2. Show Answer Correct Answer: A) 12. 11. 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. 12. 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. 13. The ..... system sends and receives messages from your senses. A) Somatic. B) Autonomic. C) Peripheral. D) Central. Show Answer Correct Answer: A) Somatic. 14. How many parts of the brain? A) 1. B) 2. C) 3. D) 4. E) 5. Show Answer Correct Answer: C) 3. 15. 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. 16. The end of the axon terminates in a number of branches called A) Branches. B) Terminal Branches. C) Axon. D) Cyton. Show Answer Correct Answer: B) Terminal Branches. 17. Found in the walls of hollow organs; also called visceral A) Smooth. B) Cardiac. C) Skeletal. D) All. Show Answer Correct Answer: A) Smooth. 18. The PNS consists of what? A) Cranial and spinal nerves. B) Brain and spinal cord. C) Brain and csf. D) Cranial nerves and brain. Show Answer Correct Answer: A) Cranial and spinal nerves. 19. What does choroid plexus form? A) Cerebrospinal fluid. B) Cerebellum spinal fluid. C) Cerebrospinal fluid. D) Cerebrospinal fluid. Show Answer Correct Answer: A) Cerebrospinal fluid. 20. Subthreshold stimulation of a neuron that increases responsiveness to further stimulation A) Facilitation. B) Action potential. C) Divergence. D) Convergence. Show Answer Correct Answer: A) Facilitation. ← 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