This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 230 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 230 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is integration? A) The interpretation and understanding of the signals sent from the senses. B) Keeps the body in balance. C) Conduct impulses from the brain or spinal cord to muscles. D) Responsible for the voluntary or conscious activities. Show Answer Correct Answer: A) The interpretation and understanding of the signals sent from the senses. 2. A person with a pacemaker cannot use a A) CT. B) PET. C) MRI or fMRI. D) EEG. Show Answer Correct Answer: C) MRI or fMRI. 3. What makes muscles contract and relax A) The motor nerves. B) The sensory nerves. C) The connective nerves. D) The associative nerves. Show Answer Correct Answer: A) The motor nerves. 4. The spine has this many pairs of neurons A) 3. B) 24. C) 943. D) 31. Show Answer Correct Answer: D) 31. 5. Sensory organs are made of A) Nose and tongue. B) Eyes and skin. C) Ear. D) All of the above. Show Answer Correct Answer: D) All of the above. 6. What are the main organs of the Central Nervous System (CNS)? A) Brain and Spinal Cord. B) Heart and Lungs. C) Liver and Kidneys. D) Pancreas and Gallbladder. Show Answer Correct Answer: B) Heart and Lungs. 7. The eye A) Eye. B) Ear. C) Nose. D) Tongue. Show Answer Correct Answer: A) Eye. 8. A type of neuron (nerve) that transmits messages from receptors to the central nervous system A) Motor Neuron. B) Sensory Neuron. C) Inter-neuron. D) Hormone. Show Answer Correct Answer: B) Sensory Neuron. 9. Digesting food A) Somatic. B) Autonomic. Show Answer Correct Answer: B) Autonomic. 10. An example of a somatic reflex is: A) Pulling your hand away from a hot object. B) Secretion of saliva. C) Dilation of pupils. D) None of above. Show Answer Correct Answer: A) Pulling your hand away from a hot object. 11. How does the body make new skin? A) Through the division of existing skin cells. B) By recycling old skin cells. C) By changing blood cells into skin cells. D) By existing skin cells getting bigger. Show Answer Correct Answer: A) Through the division of existing skin cells. 12. Synaptic vesicles release substances within the vesicles by exocytosis from where? (General subject 55) A) Dendritor. B) Axon Hillock. C) Nodes of Raevier. D) The post-synaptic nerve cell membrane. E) The axon terminal of the neuron precedes the synapse. Show Answer Correct Answer: E) The axon terminal of the neuron precedes the synapse. 13. Promotes maintenance functions, conserves energy A) SYMPATHETIC. B) PARASYMPATHETIC. Show Answer Correct Answer: B) PARASYMPATHETIC. 14. Which is the control centre of our body? A) Brain. B) Spinal Cord. C) Nerves. D) None of above. Show Answer Correct Answer: A) Brain. 15. Sensory input includes the brain becoming aware of internal conditions (in addition to external environment) A) True. B) False. Show Answer Correct Answer: A) True. 16. The human brain is estimated to have about ..... nerve cells A) 100 million. B) 100 billion. C) 1000 million. D) 1000 billion. Show Answer Correct Answer: B) 100 billion. 17. This nervous system branch causes increases in heart rate and breathing. A) Sympathetic. B) Parasympathetic. C) Somatic. D) Sensory. Show Answer Correct Answer: A) Sympathetic. 18. What is the correct term for the junction between 2 neurones? A) Neurotransmitter. B) Conclusion. C) Dendrite. D) Cell body. Show Answer Correct Answer: B) Conclusion. 19. They allow us to move, speak, swallow and breathe by sending commands from the brain to the muscles that carry out these functions. A) Motor neurones. B) Sensory neurons. Show Answer Correct Answer: A) Motor neurones. 20. The effect of myelin and nodes of Ranvier is to make nerve impulses travel A) Away from as well as toward the cell body. B) Faster. C) In many directions at once. D) Laterally from axon to axon. E) Slower. Show Answer Correct Answer: B) Faster. ← 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