This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 735 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 735 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If long-term potentiation is to occur between twoneurons, then A) The two neurons must be activatedsimultaneously. B) The two neurons must be connected within aneural pathway. C) The existing connection between the two neuronsmust be weak. D) The existing connection between the two neuronsmust be strong. Show Answer Correct Answer: A) The two neurons must be activatedsimultaneously. 2. The ..... protect neurons from harmful substances in the blood. A) Dendrites. B) Astrocytes. C) Microglia. D) Oligodendrocytes. Show Answer Correct Answer: B) Astrocytes. 3. Identify parts of the EYE (orange layer) A) Central pit. B) Posterior compartment. C) Optic nerve. D) Blind spot. E) Retina. Show Answer Correct Answer: E) Retina. 4. The part of the brain that controls balance and coordination is the ..... A) Cerebrum. B) Cerebellum. C) Brain. D) Spinal Cord. Show Answer Correct Answer: B) Cerebellum. 5. Definition:a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body. A) Neuron. B) Axon. C) Axon Terminals. D) Dendrites tagsneuron. Show Answer Correct Answer: D) Dendrites tagsneuron. 6. The joint with a rounded end of bone fitting snug within another bone. A) Ball and socket joint. B) Hinge joint. C) Pivot joint. D) Gliding joint. Show Answer Correct Answer: A) Ball and socket joint. 7. What is the name of the thin layer of gray matter on the outermost layer of the cerebrum that contains 75% of the neurons in the nervous system? A) Callous body. B) Convolutions. C) Cerebral cortex. D) Cerebellum. Show Answer Correct Answer: C) Cerebral cortex. 8. Which of the following structures provides output from the basal ganglia? A) Caudate nucleus. B) Nucleus accumbens. C) GPe. D) GP internal segment (GPi). Show Answer Correct Answer: D) GP internal segment (GPi). 9. Mechanoreceptors are sensitive to A) Touch. B) Pressure. C) Sound. D) Motion. E) All of the above. Show Answer Correct Answer: E) All of the above. 10. This is the smallest part of the brain stem. A) Diencephalon. B) Midbrain. C) Pons. D) Spinal cord elongated. Show Answer Correct Answer: B) Midbrain. 11. This part of the brain plans the muscle movements required for words, then sends the appropriate impulses to the primary motor cortex. A) Auditory association area. B) Broca's area. C) Central canal. D) Central gyrus. Show Answer Correct Answer: B) Broca's area. 12. Repolarization begins with the opening of ..... channels. A) Sodium. B) Potassium. C) Chloride. D) Calcium. Show Answer Correct Answer: B) Potassium. 13. Nicotine can penetrate the blood-brain barrier. A) True. B) False. Show Answer Correct Answer: A) True. 14. The cartilage of the outer ear is called A) Pinna. B) Peppa. C) Pizza. D) Pita. Show Answer Correct Answer: A) Pinna. 15. These are positively charged and have a higher concentration outside of a nerve cell at rest A) Sodium ions. B) Potassium ions. C) Calcium ions. D) Voltage-gated channels. Show Answer Correct Answer: A) Sodium ions. 16. The most serious injuries that can occur in the nervous system are: A) Spinal cord injuries. B) Brain injuries. C) Both answers are correct. D) None of above. Show Answer Correct Answer: C) Both answers are correct. 17. The structural and the functional unit of the nervous system is the ..... A) Brain. B) Spinal cord. C) Neuron. D) Nerves. Show Answer Correct Answer: C) Neuron. 18. What does the sympathetic nervous system do? A) Prepares the body for physical and mental activity. B) Controls the gut. C) Controls the body at rest. D) Stimulates digestion. Show Answer Correct Answer: A) Prepares the body for physical and mental activity. 19. It is the movement of the deoxygenated blood from the heart and into the lungs A) Systemic circulation. B) Pulmonary circulation. C) Blood circulation. D) Air circulation. Show Answer Correct Answer: B) Pulmonary circulation. 20. This causes a rise or drop in blood pressure and it sends impulses to blood vessels causing them to dilate or constrict. A) Center of Other Controls. B) Vasomotor Center. C) Respiratory Center. D) Cardiac Center. Show Answer Correct Answer: B) Vasomotor Center. ← 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