This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 1027 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 1027 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Unmyelinated fibers are called ..... matter whereas myelinated fibers are called ..... matter A) Gray; white. B) White; gray. C) Slow; fast. D) Fast; slow. Show Answer Correct Answer: A) Gray; white. 2. What is an electrical charge across the membrane of a resting neuron? A) Action potential. B) Threshold. C) Resting potential. D) Stimuli. Show Answer Correct Answer: C) Resting potential. 3. They slow heartbeat. A) Sympathetic nerves. B) Parasympathetic nerves. Show Answer Correct Answer: B) Parasympathetic nerves. 4. Neurotransmitters are stored in which structure of the neuron? A) Cell body. B) Dendrite. C) Axon terminals. D) None of above. Show Answer Correct Answer: C) Axon terminals. 5. Which part of the brain stem is responsible for relaying messages and regulating breathing? A) Midbrain. B) Pons. C) Medulla. D) Hypothalamus. Show Answer Correct Answer: B) Pons. 6. The autonomic nervous system regulates all but A) Heart rate. B) Blood pressure. C) Breathing rate. D) Voluntary movement. Show Answer Correct Answer: D) Voluntary movement. 7. Phagocytize bacterial cells A) Microglial. B) Astrocytes. C) Ependymal. D) Oligodendrocytes. Show Answer Correct Answer: A) Microglial. 8. ..... is an inflammation of the brain coverings. A) Encephalitis. B) Meningitis. C) Poliomyelitis. D) Cerebral palsy. Show Answer Correct Answer: B) Meningitis. 9. How can the speed of action potential propagation (i.e. sending) be increased? A) Myelin allows the AP to jump from Node of Ranvier to the next Node of Ranvier. B) Increasing the strength of the original stimulus. C) Closing of Na+ channels. D) Opening of K+ channels. Show Answer Correct Answer: A) Myelin allows the AP to jump from Node of Ranvier to the next Node of Ranvier. 10. This contains a cell's DNA. A) Myelin Sheath. B) Nucleus. C) Soma. D) Axon. Show Answer Correct Answer: B) Nucleus. 11. When a person is frightened, adrenalin is released by the adrenal glands. What are the effects of the adrenalin? A) Breathing rate decreased; heart beat rate decreased. B) Breathing rate decreased; heart beat rate increased. C) Breathing rate increased; heart beat rate decreased. D) Breathing rate increased; heart beat rate increased. Show Answer Correct Answer: D) Breathing rate increased; heart beat rate increased. 12. Sense of smell A) I. B) II. C) III. D) VII. Show Answer Correct Answer: A) I. 13. ..... are branched extensions off soma that receive chemical signals from a sensory cell or another neuron A) Dendrites. B) Axons. C) Axon terminals. D) Nodes of Ranvier. Show Answer Correct Answer: A) Dendrites. 14. A depolarization is when the inside of a neuron becomes ..... the resting membrane potential. A) More negative than. B) Less negative than. C) Closer to. D) None of above. Show Answer Correct Answer: B) Less negative than. 15. True or False-The fight-or-flight response causes most of your vital signs such as blood pressure, heart rate, and respiratory rate to increase. A) True. B) False. Show Answer Correct Answer: A) True. 16. Which type of cell is being described?-Line cerebrospinal fluid-filled CNS cavities.-The cilia found on these squamous or columnar cells circulate the cerebrospinal fluid that cushions the brain and spinal cord.-Name means" wrapping garment" A) Astrocytes. B) Microglial cells. C) Ependymal cells. D) Oligodendrocytes. Show Answer Correct Answer: C) Ependymal cells. 17. Which division of the nervous system contains the brain and spinal cord? A) Central. B) Peripheral. C) Somatic. D) Parasympathetic. Show Answer Correct Answer: A) Central. 18. Which of the following is NOT true about taste buds? A) Taste buds and papillae are the same thing. B) There are different types of taste buds. C) Children have more taste buds than adults. D) Taste buds contain chemoreceptors. Show Answer Correct Answer: A) Taste buds and papillae are the same thing. 19. Caidin accidentally touches a hot surface then quickly pulls his hand away. Which two systems were involved with his action and reaction? A) Nervous and circulatory. B) Digestive and respiratory. C) Skeletal and circulatory. D) Nervous and muscular. Show Answer Correct Answer: D) Nervous and muscular. 20. The difference between the brain and the spinal cord A) In the white matter. B) In the gray matter. C) Less weight. D) The service is easy. E) White matter outside. Show Answer Correct Answer: A) In the white matter. ← 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