This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 447 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 447 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Myelin sheaths are formed around what structure of the neuron? A) Axon. B) Dendrite. C) Cell Body. D) Node of Ranvier. Show Answer Correct Answer: A) Axon. 2. What is the voltage of a typical neuron at rest? A) -70 millivolts. B) -55 millivolts. C) 0 millivolts. D) +70 millivolts. Show Answer Correct Answer: A) -70 millivolts. 3. You can find lymph nodes in- A) Neck. B) Groin (hip area). C) Armpits. D) All of the above. Show Answer Correct Answer: D) All of the above. 4. At what stage is there more potassium outside the neuron, and more sodium inside the neuron? A) Depolarization. B) Repolarization. C) Hyperpolarization (refractory period). D) Resting Potential. Show Answer Correct Answer: B) Repolarization. 5. Damage to the brain stem would most likely result in A) Impaired planning abilities. B) Death. C) A coma. D) Blindness. Show Answer Correct Answer: B) Death. 6. Network of nerves that transmit signals to and from the brain through the spinal cord. A) Brainstem. B) Peripheral nerves. C) Spinal cord. D) Cerebrum. Show Answer Correct Answer: B) Peripheral nerves. 7. Which term describes changes in the internal or external environments that can cause a nervous system response? A) Stimuli. B) Cerebrum. Show Answer Correct Answer: A) Stimuli. 8. The ..... is the opening in the center of the iris that controls the amount of light entering the eye. A) Pupil. B) Cataracts. C) Rods. D) Accommodation. Show Answer Correct Answer: A) Pupil. 9. The nose senses ..... A) Sight. B) Smell. C) Touch. D) Taste. Show Answer Correct Answer: B) Smell. 10. The largest and most complex nerve tissue of the body is the: A) Spinal cord. B) Neurons. C) Brain. D) Axon. Show Answer Correct Answer: C) Brain. 11. This structure is stretched tight like the skin of a drum and is very sensitive. A) Pinna. B) Eardrum. C) Anvil. D) Hammer. Show Answer Correct Answer: B) Eardrum. 12. What analyzes and interprets the sensory inputs? A) Interneurons. B) Neutrons. C) Reflexes. D) PNS. Show Answer Correct Answer: A) Interneurons. 13. These cells make up the nerves inside the nervous system. A) Stomach Cells. B) Muscle Cells. C) Brain Cells. D) Nerve cells. Show Answer Correct Answer: D) Nerve cells. 14. Where does the respiration process happen? A) Alveoli. B) Bronchioles. C) Veins. D) Lungs. Show Answer Correct Answer: D) Lungs. 15. The skull has many bones connected by ..... joints A) Fixed. B) Semi-flexible. C) Flexible. D) Ligaments. Show Answer Correct Answer: A) Fixed. 16. You are hiking in the woods when you come across a bear that has wandered onto the trail. Which specific division of the nervous system is activated in this scenario? A) Somatic. B) Parasympathetic. C) Sympathetic. D) Central. Show Answer Correct Answer: C) Sympathetic. 17. Esthes/o A) Sensation, feeling. B) Brain. C) Electricity. D) Dura mater. Show Answer Correct Answer: A) Sensation, feeling. 18. This imaging system uses magnetic fields and radio waves to produce computer-generated images that distinguish among different types of brain tissue. A) MRI. B) PET. C) CT Scan. D) FMRI. Show Answer Correct Answer: A) MRI. 19. The longest fiber of the neuron; it carries the neural impulse away from the cell body to the next connecting neuron, brain or other body part A) Myelin Sheath. B) Dendrite. C) Axon. D) Node of Ranvier. Show Answer Correct Answer: C) Axon. 20. What do we call the cells of the nervous system that are specialised to carry electric impulses around the body? A) Neurons. B) Synapses. C) Neurones. D) Reflexes. Show Answer Correct Answer: C) Neurones. ← 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