This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 481 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 481 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Read the following and decide if it is part of the CNS or PNS '' cranial nerves" A) CNS. B) PNS. C) None of the above. D) None of above. Show Answer Correct Answer: B) PNS. 2. Once the axon reaches ..... it triggers repolarization A) Neutral. B) -70 mV. C) +30 mV. D) -55 mV. Show Answer Correct Answer: C) +30 mV. 3. How much energy does the brain use in Total energy produced by the body? How much energy does the brain use in the total energy produced by the body? A) 20%. B) 2%. C) 50%. D) 80%. Show Answer Correct Answer: A) 20%. 4. Why do the symptoms of a stroke vary from person to person? A) The stroke can cause either too much excitation or too much inhibition. B) The symptoms depend on whether the stroke was ischemic or hemorrhagic. C) The symptoms depend on which brain area was affected by the loss of blood supply. D) The symptoms depend on how much neuroplasticity a person is capable of. Show Answer Correct Answer: C) The symptoms depend on which brain area was affected by the loss of blood supply. 5. A shuffling gait pattern with short steps and decreased arm swing is commonly associated with which central nervous system disorder? A) Alzheimer's disease. B) Amyotrophic lateral sclerosis (ALS). C) Parkinson's disease. D) Epilepsy. Show Answer Correct Answer: C) Parkinson's disease. 6. The largest part of the nervous system A) Peripheral nervous system. B) Central nervous system. Show Answer Correct Answer: B) Central nervous system. 7. Neurotransmitters that increase the chance of producing an action potential are ..... A) Inhibitory. B) Excitatory. C) Inhibitory. D) Endorphins. Show Answer Correct Answer: B) Excitatory. 8. This portion of the central nervous system runs down the inside of the spinal column, connecting the brain with nerves going to the rest of the body. A) Mid brain. B) Spinal cord. C) Cerebellum. D) None of above. Show Answer Correct Answer: B) Spinal cord. 9. What makes up the spinal cord and what does it do? A) Controls heart, vomiting, swallowing, and coughing. B) Controls reflex. C) Made up of neurons and connects the brain to the nerves throughout the whole body. D) Keeps track of temperature, hunger, and thirst. Show Answer Correct Answer: C) Made up of neurons and connects the brain to the nerves throughout the whole body. 10. Nerve cells that transmit messages to and from the spinal cord and brain. A) Neurons. B) Blood. C) Central nerves. D) Peripheral nerves. Show Answer Correct Answer: A) Neurons. 11. Smoking habit A) Social drinker. B) Smoking habit. C) Drug addict. D) None of above. Show Answer Correct Answer: B) Smoking habit. 12. Broca's Area is in the left frontal lobe and produces speech. A) True. B) False. Show Answer Correct Answer: A) True. 13. The largest part of our brain A) Medulla oblongata. B) Cerebellum. C) Cerebrum. D) None of above. Show Answer Correct Answer: C) Cerebrum. 14. What are afferent or sensory nerves? A) Nerves that carry nerve impulses towards the central nervous system. B) Nerves that carry nerve impulses away from the central nervous system. C) Nerves that control the movement of the eyeball. D) Nerves that record smells. Show Answer Correct Answer: A) Nerves that carry nerve impulses towards the central nervous system. 15. Coordinates your muscle movement; helps you keep your balance. A) Cerebrum. B) Cerebellum. C) Brain Stem. D) Spinal Cord. Show Answer Correct Answer: B) Cerebellum. 16. Neurons for measuring pressure in blood vessels are part of what division of the nervous system? A) Motor, autonomic. B) Sensory, autonomic. C) Motor, somatic. D) Sensory, somatic. Show Answer Correct Answer: B) Sensory, autonomic. 17. The flow of an impulse through a neuron A) Dendrites axon cell body synapse. B) Dendrites cell body axon terminal axon. C) Dendrites cell body axon axon ternimal. D) Axon axon terminal cell body dendrties. Show Answer Correct Answer: C) Dendrites cell body axon axon ternimal. 18. The part of the neuron that receives informatio is called a(n) ..... A) Dendrite. B) Axon. C) Nucleus. D) Node of Ranvier. Show Answer Correct Answer: A) Dendrite. 19. Which living thing does not have a nervous system? A) Hydra. B) Planaria. C) Sponge. D) Earthworm. Show Answer Correct Answer: C) Sponge. 20. Which mixed nerve has sensory fibers conducting impulses to the pharynx, larynx, esophagus, and viscera of the chest and abdomen, and motor fibers associated with speech, swallowing, and conducting impulses to the heart? A) Accessory (XI). B) Vagus (X). C) Hypoglossal (XII). D) Trigeminal (B). Show Answer Correct Answer: B) Vagus (X). ← 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