This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 495 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 495 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The main "boss" of your body. A) Brain. B) Spinal cord. Show Answer Correct Answer: A) Brain. 2. The excitation threshold(nerve that starts to fire) in response to a stimulus is A) +70mv. B) -70mv. C) +55 mv. D) -55mv. Show Answer Correct Answer: D) -55mv. 3. A spinal reflex enables a quick response by A) A sensory message synapsing onto an interneuron in the spinal cord, which then synapses straight onto a motor neuron. B) A motor neuron acting immediately. C) The brain making a quick response. D) The muscles making a quick decision. Show Answer Correct Answer: A) A sensory message synapsing onto an interneuron in the spinal cord, which then synapses straight onto a motor neuron. 4. The actions that are under the control of the spinal cord are called ..... actions.(Choose the most correct answer) A) Voluntary. B) Involuntary. C) Reflex. D) Automatic. Show Answer Correct Answer: C) Reflex. 5. Nerves that are NOT under your control A) Somatic. B) Autonomic. Show Answer Correct Answer: B) Autonomic. 6. What are the layers of bone? A) Periosteum, compact bone, marrow, spongey bone, blood vessel. B) Compact bone, cells, organisms. C) Blood vessels, compact bone, organs. D) Tissue, kleenex, puffs. Show Answer Correct Answer: A) Periosteum, compact bone, marrow, spongey bone, blood vessel. 7. Chemoreceptors-respond to ..... A) Heat. B) Cold. C) Pain. D) Chemicals. E) Light. Show Answer Correct Answer: D) Chemicals. 8. A traumatic brain injury (TBI) results from A) An open head wound. B) Mechanical force. C) An infection. D) Poisoning. Show Answer Correct Answer: B) Mechanical force. 9. Which of the following lobes is the somatosensory cortex found? A) Frontal. B) Temporal. C) Parietal. D) Occipital. Show Answer Correct Answer: C) Parietal. 10. The gaps between neurons are called A) Effectors. B) Neurotransmitters. C) Reflexes. D) Synapses. Show Answer Correct Answer: D) Synapses. 11. What makes up the Central Nervous System? A) Blood and Heart. B) Spinal Cord. C) Nerves. D) Brain and Spinal Cord. Show Answer Correct Answer: D) Brain and Spinal Cord. 12. What are a network of nerves that branch out from the spinal cord and connect to the rest of the body and transmit signals to and from the brain through the spinal cord? A) Veins and Arteries. B) Cerebellum. C) Peripheral nerves. D) Spinal cord. Show Answer Correct Answer: C) Peripheral nerves. 13. ..... helps bones harden and become strong. A) Phosphorus. B) Potassium. C) Sodium. D) Calcium. Show Answer Correct Answer: D) Calcium. 14. The space between a synaptic knob, and the plasma membrane of a postsynaptic neuron A) Conclusion. B) Synaptic cleft. C) Tract. D) None of above. Show Answer Correct Answer: B) Synaptic cleft. 15. WHEN TASTE BUDS IDENTIFY DIFFERENT TASTES LIKE SALTY, SWEET, BITTER AND SOUR. WHAT SENDS THE INFORMATION TO THE BRAIN? A) THE TONGUE. B) TASTE BUDS. C) SALTY. D) THE GUSTATORY NERVES. Show Answer Correct Answer: D) THE GUSTATORY NERVES. 16. A disturbance of the electrical activity of the brain: A) Encephalitis. B) Cerebrovascular accident. C) Concussion. D) Epilepsy. Show Answer Correct Answer: D) Epilepsy. 17. Paralysis of a single limb A) Hemiplegia. B) Paraplegia. C) Quadriplegia. D) Monoplegia. Show Answer Correct Answer: D) Monoplegia. 18. Functional division of the nervous system that is concerned with conscious perception, voluntary movement, and skeletal muscle reflexes. A) Somatic Nervous System (SNS). B) Node of Ranvier. C) Cerebrospinal Fluid (CSF). D) Action Potential. Show Answer Correct Answer: A) Somatic Nervous System (SNS). 19. ..... is a long cell fiber in the nervous system that transfers messages (labeled #4). A) Cell body. B) Nucleus. C) Dendrite. D) Axon. Show Answer Correct Answer: D) Axon. 20. The central nervous system is 42cm long and weighs 35g A) Mi. B) Neuron. C) The spinal cord. D) Synapse. E) Nerves. Show Answer Correct Answer: C) The spinal cord. ← 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