This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 665 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 665 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which part of the nervous system consists of the brain and spinal cord? A) Digestive nervous system. B) Peripheral nervous system. C) Respiratory nervous system. D) Central nervous system. Show Answer Correct Answer: D) Central nervous system. 2. Each neuron has more than one axon. A) True. B) False. Show Answer Correct Answer: B) False. 3. Why is the action potential considered a binary or "all or none" type of signal? A) Once the threshold is reached-a full action potential is generated. B) It does not compromise with other neurons. C) It only knows computer code. D) It can send slow signals to computers. Show Answer Correct Answer: A) Once the threshold is reached-a full action potential is generated. 4. Which type of neurons carry impulses from sense organs to the central nervous system? A) Enterneurons. B) Interneurons. C) Sensory neurons. D) Motor neurons. Show Answer Correct Answer: C) Sensory neurons. 5. Phagocytic cells that devour dead cells in the CNS A) Microglia. B) Ependymal cells. C) Satellite cells. D) Astrocytes. Show Answer Correct Answer: A) Microglia. 6. How many parts are there in the nervous system? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 7. Seizure of sleep A) Narcotic. B) Narcolepsy. C) Neurolepsy. D) None of above. Show Answer Correct Answer: B) Narcolepsy. 8. Disease causing agents such as bacteria and viruses are called ..... A) Pathogens. B) Antibodies. C) Willians. D) Particles. Show Answer Correct Answer: A) Pathogens. 9. At resting potential, the ion distribution inside and outside of a neuron is such that ..... ions are most abundant on the outside of the cell, while ..... ions are most abundant on the inside of the cell. A) Potassium; sodium. B) Sodium; potassium. C) Calcium; potassium. D) Calcium; sodium. Show Answer Correct Answer: B) Sodium; potassium. 10. Any change in the environment A) Stimulus. B) Receptor. C) Effector. D) Impulse. Show Answer Correct Answer: A) Stimulus. 11. Which type of neuron function is describe:carries impulses to the effector A) Sensory. B) Intergrative. C) Motor. D) None of above. Show Answer Correct Answer: C) Motor. 12. This part of the brain controls basic body functions like breathing, swallowing, heart rate, blood pressure, and consciousness A) Cerebrum. B) Cerebrum. C) Brain stem. D) Brain. Show Answer Correct Answer: C) Brain stem. 13. What is the English Meaning of the Medical Term Narc/o [ NARC/O ]? A) Pain, Painful Condition. B) Movement. C) Weakness, Debility. D) Numbness, Sleep. E) Tension. Show Answer Correct Answer: D) Numbness, Sleep. 14. The word '' soma" means ..... A) Life. B) Somatic. C) Sympathetic. D) Body. Show Answer Correct Answer: D) Body. 15. Which part of the peripheral nervous system is controlled by you? A) Automatic. B) Somatic. C) Conscious . D) None of above. Show Answer Correct Answer: B) Somatic. 16. In a cholinergic synapse, calcium ions (Ca2+) are involved in the transmission of nerve impulses by: A) Generating an action potential of +40mv in the postsynaptic knob. B) Depolarizing the presynaptic knob by entering the neurone. C) Restoring the resting potential of the neurone by leaving the cell. D) Triggering the release of neurotransmitter from the synaptic vesicles. Show Answer Correct Answer: D) Triggering the release of neurotransmitter from the synaptic vesicles. 17. An excitable cell is one that can A) Change its membrane potential. B) Separate its charge. C) Use active transport. D) Have different moods. Show Answer Correct Answer: A) Change its membrane potential. 18. Which of the following is the correct sequence of the neural chain of events set in motion by an environmental stimulus? A) Receptors, sensory neurons, interneurons, motor neurons, effectors (target cells). B) Receptors, motor neurons, interneurons, sensory neurons, effectors. C) Interneurons, effector, receptor, motor neuron, sensory neurons. D) Effectors, interneurons, receptors, sensory neurons, motor neurons. Show Answer Correct Answer: A) Receptors, sensory neurons, interneurons, motor neurons, effectors (target cells). 19. Which region of the ear contains the ear drum? A) Outer. B) Middle. C) Inner. D) None of above. Show Answer Correct Answer: B) Middle. 20. What is the area of the brain that controls everything conscious and higher thinking? A) Cerebellum. B) Cerebrum. C) Diencephalon. D) Brain Stem. Show Answer Correct Answer: B) Cerebrum. ← 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