This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 230 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 230 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. They allow us to move, speak, swallow and breathe by sending commands from the brain to the muscles that carry out these functions. A) Motor neurones. B) Sensory neurons. Show Answer Correct Answer: A) Motor neurones. 2. The effect of myelin and nodes of Ranvier is to make nerve impulses travel A) Away from as well as toward the cell body. B) Faster. C) In many directions at once. D) Laterally from axon to axon. E) Slower. Show Answer Correct Answer: B) Faster. 3. A neuron that connects the central nervous system and a muscle is called: A) A motor neuron. B) A relay neuron. C) A sensory neuron. D) The spinal cord . Show Answer Correct Answer: A) A motor neuron. 4. This is the largest part of the brain. It controls your voluntary movements, thinking, and decision-making processes. A) Brain stem. B) Cerebellum. C) Cerebrum. D) None of above. Show Answer Correct Answer: C) Cerebrum. 5. If you're in a dark room, what would happen to the size or your pupil? A) Dilate to allow more light in. B) Constrict to allow more light in. C) Dilate to allow less light in. D) Constrict to allow less light in. Show Answer Correct Answer: A) Dilate to allow more light in. 6. The ..... of the brain controls movement and maintains the balance of the body. A) Cerebellum. B) Medulla oblongata. C) Brain stem. D) Cerebrum. Show Answer Correct Answer: A) Cerebellum. 7. Hypothalamus is the thermoregulatorycentre of human body. A) True. B) False. Show Answer Correct Answer: A) True. 8. What does a motor neuron do? A) Carries signals from teh brain to the organs and other tissues. B) Carries messages from the body to the brain. C) Serves as a link between other neurons. D) None of above. Show Answer Correct Answer: A) Carries signals from teh brain to the organs and other tissues. 9. How is the nervous system related to the muscular system? A) By the brain stem. B) By the cerebrum. C) By the cerebellum. D) None of above. Show Answer Correct Answer: C) By the cerebellum. 10. The ..... consists mainly of nerves that extend from the brain and spinal cord. A) Central nervous system. B) Peripheral nervous system. Show Answer Correct Answer: B) Peripheral nervous system. 11. A loud sound, a bright light, and a poke from a sharp pin are all examples of: A) Axons. B) Stimuli. C) Effector. D) None of above. Show Answer Correct Answer: B) Stimuli. 12. During resting potential, the inside of the neuron has a(n) ..... charge compared with the outside of the neuron A) Positive. B) Negative. C) Equal. D) None of the above are correct. Show Answer Correct Answer: B) Negative. 13. The type of nerve cell that carries information (nerve impulses). A) Neuroglia. B) Neuron. Show Answer Correct Answer: B) Neuron. 14. During which phase of the action potential is the sodium voltage-gated ion channel closed and the potassium voltage-gated ion channel open? A) Resting. B) Depolarization. C) Repolarization. D) None of above. Show Answer Correct Answer: C) Repolarization. 15. Interneurons A) Allows for motor movement. B) Allows for senses to function. C) Increases speed of neuron actions, insulates, protects. D) None of above. Show Answer Correct Answer: C) Increases speed of neuron actions, insulates, protects. 16. Which among the following is NOT a glial cell? A) The oligodendrons. B) Astrocyte. C) Schwann cell. D) All of the above are glial cells. Show Answer Correct Answer: D) All of the above are glial cells. 17. How do pairs of skeletal muscles work together? A) One muscle in the pair pulls on a bone, while the second muscle pulls on the first muscle. B) While one muscle in the pair contracts, the other returns to its original length. C) Both muscles extend at the same time. D) One contracts and the other stretches. Show Answer Correct Answer: B) While one muscle in the pair contracts, the other returns to its original length. 18. Motor fibers that activate the sternocleidomastoid and trapezius muscles A) Abducting. B) Facial. C) Accessory. D) Hypoglossal. E) Vagus. Show Answer Correct Answer: C) Accessory. 19. Nerves can carry signals at 100 meters per second A) True. B) False. Show Answer Correct Answer: A) True. 20. The brain and spine make up the ..... nervous system. A) Central. B) Peripheral. Show Answer Correct Answer: A) Central. ← 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