This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 335 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 335 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How many parts has the brain got? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 2. The Motor nerves carry message from brain to the different parts of the body A) True. B) False. Show Answer Correct Answer: A) True. 3. Glial cells that are directly involved in defending the CNS against infection and injury include ..... A) Microglial cells. B) Ependymal cells. C) Both astrocytes and microglial cells. D) Both ependymal and microglial cells. Show Answer Correct Answer: C) Both astrocytes and microglial cells. 4. What is the function of the nerve cells? A) They act as a barrier to prevent substances from entering or exiting the body. B) They transmit signals or messages to other neurons, muscles, organs or glands. C) They transmit substances to your endocrine system to produce hormones. D) None of above. Show Answer Correct Answer: B) They transmit signals or messages to other neurons, muscles, organs or glands. 5. Small opening through which light enters the eye A) Cones. B) Pupil. C) Retina. D) Rods. E) Sclera. Show Answer Correct Answer: B) Pupil. 6. Sarah has been diagnosed with bacterial meningitis. She is experiencing a headache, fever, and a stiff neck. How will she be treated? A) Antibiotics. B) Nothing. C) Oxygen. D) Vitamins. Show Answer Correct Answer: A) Antibiotics. 7. X-shaped structure on the underside of the brain formed by optic nerve fibers that partially cross over A) Optic chiasma. B) Cell body. C) Choroid plexus. D) Reticular formation. Show Answer Correct Answer: A) Optic chiasma. 8. ..... interprets input from your sense, controls movement, and carries out complex mental processes such as learning and remembering. A) Brain stem-controls. B) Cerebrum. C) Cerebellum. D) None of above. Show Answer Correct Answer: B) Cerebrum. 9. 2 or more different organs build into what? A) Organ (body) system. B) Organism. C) Tissue. D) Organ. Show Answer Correct Answer: A) Organ (body) system. 10. What part of the brain connects the two hemispheres? A) Meninges. B) Hypothalamus. C) Midbrain. D) Callous body. Show Answer Correct Answer: D) Callous body. 11. ..... is when the membrane potential becomes more positive A) Depolarization. B) Hyperpolarization. C) Repolarization. D) None of above. Show Answer Correct Answer: A) Depolarization. 12. When there is more sodium inside the cell, the cell is more positive on the inside, the process is A) Depolarized. B) Repolarized. C) Polarized. D) None of above. Show Answer Correct Answer: A) Depolarized. 13. Voltage regulated channels can be found A) At the motor end plate. B) On the surface of dendrites. C) In the membrane that covers axons. D) On the soma of neurons. E) Along the perikaryon of neurons. Show Answer Correct Answer: C) In the membrane that covers axons. 14. Polio starts with the polio virus multiplying in the lining of the throat and stomach. The symptoms are muscle pain, and difficulty in breathing and swallowing. One leg or arm may become weaker. In serious cases, the nerve cells may be destroyed by the infection and the victim becomes paralyzed. Sometimes, the affected limbs do not return to normal anymore. A) False. B) True. Show Answer Correct Answer: B) True. 15. Cerebrovascular A) Pertaining to the brain and blood vessels. B) Nerve cell. C) Hernia (protrusion of an organ). D) None of above. Show Answer Correct Answer: A) Pertaining to the brain and blood vessels. 16. What is considered the command center of the nervous system? A) Heart. B) Spinal Cord. C) Brain. D) Neurons. Show Answer Correct Answer: C) Brain. 17. How many neurons are in the brain? A) 86, 000. B) 86, 000, 000. C) 86, 000, 000, 000. D) 860. Show Answer Correct Answer: C) 86, 000, 000, 000. 18. Hard A) Dura mater. B) Cell. C) Skull. D) To shake violently. Show Answer Correct Answer: A) Dura mater. 19. Found between the arachnoid layer and pia matter that allows the brain to float. A) Dura matter. B) Cerebrum. C) Cerebrospinal fluid. D) Granules. Show Answer Correct Answer: C) Cerebrospinal fluid. 20. Which is not part of the brainstem? A) Medulla oblongata. B) Midbrain. C) Pons. D) Cerebellum. Show Answer Correct Answer: D) Cerebellum. ← 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