This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 413 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 413 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which axons are fastest? A) Small, myelinated. B) Small, unmyelinated. C) Large, unmyelinated. D) Large, myelinated. Show Answer Correct Answer: C) Large, unmyelinated. 2. The main parts of the central nervous system are the: A) Brain, spinal cord, and autonomic nerves. B) Brain, spinal cord, nerves. C) Brain and spinal cord. D) Brain only. Show Answer Correct Answer: C) Brain and spinal cord. 3. Combining form meaning rapid contraction and relaxation. A) Esthesi/o. B) Ment/o. C) Polio. D) Clon/o. E) Coln/o. Show Answer Correct Answer: D) Clon/o. 4. What step comes next:Sodium enters the cell A) It then leaves through the sodium/potassium pumps. B) The charge of the cell now changes to +30mV. C) The charge of the cell drops, dipping beneath-70mV. D) Calcium releases neurotransmitters into synapse. Show Answer Correct Answer: B) The charge of the cell now changes to +30mV. 5. When the eyeball is too long causing Nearsightedness A) Myopia. B) Hyperopia. C) Astigmatism. D) Presbyopia. Show Answer Correct Answer: A) Myopia. 6. Branching structures that receive impulses A) Dendrites. B) Axon terminals. C) Schwann cells. D) Myelin. Show Answer Correct Answer: A) Dendrites. 7. There are ..... cranial nerves in the human body A) 6. B) 10. C) 12. D) 31. Show Answer Correct Answer: C) 12. 8. The iris controls the size of the A) Pupil. B) Retina. C) Sclera. D) Cones. Show Answer Correct Answer: A) Pupil. 9. A stroke in the frontal lobe has caused Don to lose motor speech. He can understand others speaking but when he tries to respond, the words coming out make no sense. What part of his brain was damaged? A) Wernicke's area. B) Broca's area. C) Medulla oblongata. D) Pyramidal tract. Show Answer Correct Answer: B) Broca's area. 10. Which division of the nervous system is responsible for "resting and digesting" ? A) Parasympathetic nervous system. B) Sympathetic nervous system. C) Somatic nervous system. D) Peripheral nervous system. Show Answer Correct Answer: A) Parasympathetic nervous system. 11. This is the fluid that circulates between the brain and spinal cord. A) Plasma. B) Bone Marrow. C) Blood. D) Cerebrospinal Fluid. Show Answer Correct Answer: D) Cerebrospinal Fluid. 12. Which of the following are parts of neurons? A) Brain, spinal cord, and vertebral column. B) Dendrite, axon, and cell body. C) Sensory and motor dendrites. D) Dendrite, medulla and myelin sheath. Show Answer Correct Answer: B) Dendrite, axon, and cell body. 13. What layer contains the actual sensory cells that respond to light? A) Choroid. B) Retina. C) Conjunctiva. D) Sclera. Show Answer Correct Answer: B) Retina. 14. Imagine Jackson, Mason, and Grace are on a thrilling adventure in a sci-fi movie. They encounter a character named 'Sensory Neuron'. What do you think is the role of this character 'Sensory Neuron'? A) Picks up stimuli from the internal or external environment and converts each stimulus into a nerve impulse. B) Sends an impulse in a muscle or gland, and it reacts in response. C) Carries nerve impulse from one neuron to another. D) None of above. Show Answer Correct Answer: A) Picks up stimuli from the internal or external environment and converts each stimulus into a nerve impulse. 15. All the following are vital functions of the hypothalamus except? A) Sensation. B) Temperature. C) Heart rate. D) None of above. Show Answer Correct Answer: A) Sensation. 16. Which of the following describes the function of the Na/K Pumps in the neuron membrane? A) Depolarizing the cell by allowing Na into the cell. B) Repolarizing the cell by allowing K out of the cell. C) Rearranging Na and K back to return cell to resting state. D) None of above. Show Answer Correct Answer: C) Rearranging Na and K back to return cell to resting state. 17. This is the gap or space between two neurons A) Dendrites. B) Cell Body. C) Conclusion. D) Axon. Show Answer Correct Answer: C) Conclusion. 18. The wrinkly large part of the brain is called? A) Cerebellum. B) Cerebrum. C) Brain stem. D) None of above. Show Answer Correct Answer: A) Cerebellum. 19. What type of receptors respond to factors such as pressure, stretch, and vibration that change the position of a receptor? A) Nociceptors. B) Mechanoreceptors. C) Thermoreceptors. D) Chemoreceptors. Show Answer Correct Answer: B) Mechanoreceptors. 20. What do efferent nerves do? A) Carry information to make changes. B) Carry information about changes. Show Answer Correct Answer: A) Carry information to make changes. ← 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