This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 81 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 81 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Raising the potassium ion concentration in the extracellular fluid surrounding a nerve cell will have what effect? A) Depolarize it. B) Hyperpolarize it. C) Increase the magnitude of the potassium equilibrium potential. D) Both hyperpolarize it and decrease the magnitude of the potassium equilibrium potential. Show Answer Correct Answer: D) Both hyperpolarize it and decrease the magnitude of the potassium equilibrium potential. 2. Transmits nerve impulses; a neuron A) Sensory receptor. B) Nerve cell. C) Brain. D) Behavior. E) Stimulus. Show Answer Correct Answer: B) Nerve cell. 3. What would be the most specific way to describe the part of the PNS that is being used? A) Somatic Motor Nervous System (SMNS). B) Autonomic Nervous System (ANS). C) Central Nervous System (CNS). D) Sympathetic Nervous System (SNS). Show Answer Correct Answer: A) Somatic Motor Nervous System (SMNS). 4. What lines the nose and most other airways of the respiratory system that traps small particles like dust A) Cilia. B) Vocal Cords. C) Epiglottis. D) Arteries. Show Answer Correct Answer: A) Cilia. 5. Which of the following is not a component of the brain stem? A) Midbrain. B) Pons. C) Medulla oblongata. D) Thalamus. Show Answer Correct Answer: D) Thalamus. 6. Skeletal muscles are attached to ..... A) Organs. B) Heart. C) Bones. D) Lungs. Show Answer Correct Answer: C) Bones. 7. The nervous system responsible for sensation and control of the skeletal muscles. A) Autonomic Nervous System. B) Central Nervous System. C) Peripheral Nervous System. D) Somatic Nervous System. Show Answer Correct Answer: D) Somatic Nervous System. 8. Olfactory receptors are found A) Throughout the nasal cavity. B) Only in the superior portion of the nasal cavity. C) Only in the inferior portion of the nasal cavity. D) From the vestibule to the pharynx. Show Answer Correct Answer: B) Only in the superior portion of the nasal cavity. 9. What is the correct definition of synapses? A) Root like processes that receive the impulse and conduct them to the cell body. B) Space between 2 neurons or between a neuron and a receptor organ. C) Branching fibers at the end of the axon. D) Provide support and protection for neurons. Show Answer Correct Answer: B) Space between 2 neurons or between a neuron and a receptor organ. 10. Cones help us see ..... A) Color. B) Black, white, and grey. C) Only purple. D) Only with glasses on. Show Answer Correct Answer: A) Color. 11. What is the region in the frontal lobe of the brain with functions linked to speech production? A) Somatic Sensory Area. B) Primary Motor Area. C) Broca's Area. D) Wernicke's Area. Show Answer Correct Answer: C) Broca's Area. 12. The ..... nervous system mobilizes the body when one needs to exert energy. A) Somatic. B) Central. C) Sympathetic. D) Parasympathetic. Show Answer Correct Answer: C) Sympathetic. 13. What does our skeleton help us do? A) Move. B) Think. C) Sleep. D) None of these. Show Answer Correct Answer: A) Move. 14. The part of the eye that sees black, white, and gray and has the lowest threshold for activation A) Cones. B) Pupil. C) Optic nerve. D) Rods. Show Answer Correct Answer: D) Rods. 15. Oh no! Your blood sugar is too high, so your brain tells your pancreas to produce more insulin. Which is the effector? A) Your brain. B) Your pancreas. C) Insulin. D) Blood sugar. Show Answer Correct Answer: B) Your pancreas. 16. When a tuning fork is placed against the skull, the vibrations reaching the bony cavity around the cochlea can cause a person to hear sound, even when their ears are plugged. This is a sensation known as ..... A) Bone Conduction. B) Ghost Hearing. C) Bon Iver. D) The Ikea Effect. Show Answer Correct Answer: A) Bone Conduction. 17. The second largest part of human brain is ..... A) Cerebrum. B) Cerebellum. C) Medulla oblongata. D) Pons. Show Answer Correct Answer: B) Cerebellum. 18. Melissa fell off a horse and was paralyzed as a result of significant injury to her spinal cord. Which nervous system was damaged? A) Autonomic. B) Central. C) Peripheral. D) Sympathetic. Show Answer Correct Answer: B) Central. 19. The reestablishment of a polarized state in a cell after depolarization. A) Saltatory conduction. B) Repolarization. C) Refractory period. D) Reflexes. Show Answer Correct Answer: B) Repolarization. 20. Gaps in myelin sheath A) Notes of ranier. B) Nodes of ranvier. C) Nodes of ramen. D) Nodes of reflection. Show Answer Correct Answer: B) Nodes of ranvier. ← 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