This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 972 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 972 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of these is NOT part of a neuron? A) Axon. B) Dendrites. C) Cell body. D) Axon terminals. E) Neurotransmitters. Show Answer Correct Answer: E) Neurotransmitters. 2. Which term matches the following definition. Definition:A nerve cell, the basic unit of the nervous system that transfers information around the body. A) Nervous System. B) Homeostasis. C) Neurons. D) Immune System. Show Answer Correct Answer: C) Neurons. 3. Sensory Neurons are the nerve cells that: A) Sense inputs, like taste, touch, smell, sounds, and sights. B) Respond to outputs. C) Trigger muscle cells to respond. D) Are in your brain. Show Answer Correct Answer: A) Sense inputs, like taste, touch, smell, sounds, and sights. 4. Each of the series of small bones forming the backbone, having several projections for articulation and muscle attachment, and a hole through which the spinal cord passes. A) Spinal Cord. B) Axon. C) Conclusion. D) Vertebra. Show Answer Correct Answer: D) Vertebra. 5. The most common neuroglia found in the body are microglia. A) True. B) False. Show Answer Correct Answer: B) False. 6. What are the two major functional subdivisions of the nervous system? A) Somatic (involuntary) and autonomic (voluntary). B) Somatic (voluntary) and autonomic (involuntary). C) Sensory and motor. D) Sympathetic and parasympathetic. Show Answer Correct Answer: B) Somatic (voluntary) and autonomic (involuntary). 7. Contains blood vessels that nourish the eye A) Aqueous humor. B) Vitreous humor. C) Choroid. D) None of above. Show Answer Correct Answer: C) Choroid. 8. Functions as natural analgesics, decreasing pain perception A) Endorphins. B) Adaptation. C) Aspartate. D) Photo receptors. Show Answer Correct Answer: A) Endorphins. 9. A neuron that carries information from the peripheral nervous system to the central nervous system is A) Afferent neuron. B) Efferent neuron. C) Both. D) None. Show Answer Correct Answer: A) Afferent neuron. 10. Damage to the upper motor neurons in the central nervous system can result in which type of gait pattern? A) The horse walks. B) Gait to the steppe. C) Spastic gait. D) Trendelenburg gait. Show Answer Correct Answer: C) Spastic gait. 11. Why is the sensation of thirst important to maintaining homeostasis? A) Water removed by the kidneys must be replaced. B) Oxygen cannot diffuse into cells if a person is dehydrated. C) Water molecules are needed to carry carbon dioxide waste to the kidneys. D) None of above. Show Answer Correct Answer: A) Water removed by the kidneys must be replaced. 12. What type of neuron processes messages and determines where to send them in your brain. A) Motor Neurons. B) Interneurons. C) Sensory Neurons. D) None of above. Show Answer Correct Answer: B) Interneurons. 13. The postganglionic neurons of the sympathetic nervous system release the neurotransmitter ..... A) Acetylcholine. B) Epinephrine. C) Adrenaline. D) Norepinephrine. Show Answer Correct Answer: D) Norepinephrine. 14. The tough, outer membrane that surrounds the brain is called the A) Dura mater. B) Pia mater. C) Arachnoid membrane. D) Subarachnoid space. Show Answer Correct Answer: A) Dura mater. 15. Carry messages from the sense organs to the spinal cord A) Sensory nerves. B) All. C) Nothing. D) Motor nerves. Show Answer Correct Answer: A) Sensory nerves. 16. Why is the speed of an impulse increased if a neuron is wrapped in myelin? A) Potassium ions flow out of the neuron faster. B) Myelin insulates the neuron so the temperature increases. C) The impulse can jump from node to node. D) It allows neurons to touch each other. Show Answer Correct Answer: C) The impulse can jump from node to node. 17. The following tract carries movement-related information from the brain to the spinal cord: A) The cortico-spinal tract. B) The spino-cerebellar tract. C) The DCML. D) Lateral spino-thalamic tract. Show Answer Correct Answer: A) The cortico-spinal tract. 18. Which part of the eye gives the eye its color? A) Cornea. B) Iris. C) Retina. D) Pupil. Show Answer Correct Answer: B) Iris. 19. The sensory neurons go to ..... which then go to the motor neurons A) Sympathetic nervous system. B) Parasympathetic nervous system. C) Somatic nervous system. D) Interneurons. Show Answer Correct Answer: D) Interneurons. 20. The chemicals that are used by neurons to transmit messages A) Neurotransmitters. B) Conclusion. C) Dendrite. D) Nerve. Show Answer Correct Answer: A) Neurotransmitters. ← 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