This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 734 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 734 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What helps warn us and protect us? A) Nerves. B) Reflexes. C) Both a and b. D) None of above. Show Answer Correct Answer: B) Reflexes. 2. With a reflex action, where is the impulse carried to be processed more quickly (to reduce the amount of damage to the body in a reflex arc)? A) Brain. B) Spinal Cord. C) Brainstem. D) None of above. Show Answer Correct Answer: B) Spinal Cord. 3. A threshold refers to A) A neural impulse. B) A level of stimulation needed to trigger a neuron. C) A period of brief resting pauce after a neuron has fired. D) The junction between the axon and the dendrite. Show Answer Correct Answer: B) A level of stimulation needed to trigger a neuron. 4. A sense organ has lots of ..... A) Effectors. B) Tissue. C) Mitochondria. D) Receptors. Show Answer Correct Answer: D) Receptors. 5. Which term defines near-sightedness A) Myopia. B) Hyperopia. C) Presbyopia. D) None of the above. Show Answer Correct Answer: A) Myopia. 6. The involuntary actions of the internal organs of the body are controlled by the automatic system. A) True. B) False. Show Answer Correct Answer: A) True. 7. What are the deep grooves that separate the lobes of the brain called? A) Gyri. B) Sulci. C) Fissures. D) Convolutions. Show Answer Correct Answer: C) Fissures. 8. Controls heartbeat and breathing, A) Reticular formation. B) Medulla. Show Answer Correct Answer: B) Medulla. 9. Nerve cells that relay impulses from sensory nerve cells to motor nerve cells A) Sensory neurons. B) Motor neurons. C) Neurotransmitters. D) Interneurons. Show Answer Correct Answer: D) Interneurons. 10. A patient has an injury to the ventral root of his spinal nerve at the lumbar level of his spinal cord. He will experience problems of A) Sensory at the bowel and bladder. B) Motor at the legs and feet. C) Sensory at the legs and feet. D) Motor at the arms and diaphragm. Show Answer Correct Answer: B) Motor at the legs and feet. 11. The minimum level of a stimulus that is required to activate a neuron A) Threshold. B) Conclusion. C) Meninges. D) Cerebrum. Show Answer Correct Answer: A) Threshold. 12. Cells with a supportive role in the nervous system. A) Neurons. B) Glial cells. Show Answer Correct Answer: B) Glial cells. 13. Sac-like organelle that stores water, food, and other materials. A) Cell Wall. B) Nucleus. C) Ribosome. D) Vacuoles. Show Answer Correct Answer: D) Vacuoles. 14. Which of the following is a part of the rhombencephalon? A) Medulla. B) Black substance. C) Thalamus. D) Temporal lobe. Show Answer Correct Answer: A) Medulla. 15. External ..... are changes to conditions outside our body. A) Impulse. B) Response. C) Conclusion. D) Stimuli. Show Answer Correct Answer: D) Stimuli. 16. Rod-shaped organelles that convert energy in food molecules to energy the cell can use to carry out its functions A) Mitochondria. B) Golgi Apparatus. C) Ribosomes. D) Endoplasmic Reticulum. Show Answer Correct Answer: A) Mitochondria. 17. Hormones are made by the nervous system. A) False. B) True. Show Answer Correct Answer: A) False. 18. A patient is admitted after head injury the temperature is elevated the suggestive injury to the A) Temporal lobe. B) Thalamus. C) Hypothalamus. D) Basal ganglia. Show Answer Correct Answer: C) Hypothalamus. 19. The function of the spinal cord? A) Conductive and reflexive. B) Gray matter. C) White stuff. D) Reflexive. Show Answer Correct Answer: A) Conductive and reflexive. 20. What structure of the inner ear is responsible for your sense of hearing? A) Vestibule. B) Tympanic membrane. C) Semicircular canals. D) Cochlea. Show Answer Correct Answer: D) Cochlea. ← 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