This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 62 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 62 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is released into the space between neurons at the end of the axon? A) Hormone. B) Neurotransmitter. C) Nutrient. D) Oxygen. Show Answer Correct Answer: B) Neurotransmitter. 2. Pleasure neurotransmitter A) Epinephrine. B) Norepinephrine. C) Dopamine. D) GABA. Show Answer Correct Answer: C) Dopamine. 3. When signals are sent through a resting neuron, what happens next? A) The stimulus initiates local depolarization. B) The stimulus initiates repolarization. C) The stimulus initiates no change in the neuron. D) The stimulus initiates the restoration of the resting conditions. Show Answer Correct Answer: A) The stimulus initiates local depolarization. 4. What part of the brain regulates breathing? A) Pons. B) Midbrain. C) Medulla oblongata. D) Hippocampus. Show Answer Correct Answer: A) Pons. 5. What color do unmyelinated axons appear? A) White. B) Gray. C) Black. D) Red. Show Answer Correct Answer: B) Gray. 6. Tissue that works together to perform a function A) Organ. B) Cell. C) Organ system. D) Organism. Show Answer Correct Answer: A) Organ. 7. What is the path for impulses from the primary motor area to the muscles? A) Projection tract. B) Association tract. C) Commisural tract. D) None of above. Show Answer Correct Answer: A) Projection tract. 8. The sodium-potassium pump moves ..... to help maintain resting potential. A) 3 Na+ in and 2 K+ out. B) 2 Na+ in and 3 K+ out. C) 2 Na+ out and 3 K+ in. D) 3 Na+ out and 2 K+ in. Show Answer Correct Answer: D) 3 Na+ out and 2 K+ in. 9. Once ACh binds to receptor cells on the sarcolemma, what takes place? A) Sarcolemma becomes temporarily permeable to sodium. B) The muscle contracts. C) Calcium is pumped into the axon terminal. D) Synaptic vesicles move to the end of the terminal. Show Answer Correct Answer: A) Sarcolemma becomes temporarily permeable to sodium. 10. What is the purpose of myelin sheath on an axon? A) To increase the frequency of action potentials. B) To decrease the conduction velocity of action potentials. C) To prevent action potentials from occurring. D) To increase the conduction velocity of action potentials. Show Answer Correct Answer: D) To increase the conduction velocity of action potentials. 11. Responsible for thinking and creating A) Frontal lobe. B) Cerebellum. C) Parietal lobe. D) Brain stem. Show Answer Correct Answer: A) Frontal lobe. 12. Small grain-shaped organelles that produce proteins for the cell A) Cytoplasm. B) Ribosomes. C) Lysosomes. D) Mitochondria. Show Answer Correct Answer: B) Ribosomes. 13. Loss of muscle coordination results from damage to the ..... A) Thalamus. B) Midbrain. C) Cerebrum. D) Cerebellum. E) Hypothalamus. Show Answer Correct Answer: D) Cerebellum. 14. The nerve impulse is an electrical current that travels along dendrites or axons. A) True. B) False. Show Answer Correct Answer: A) True. 15. ..... is the sensory motor nerve that with its branches, supplies the thumb side of the arm and back of the hand. A) Median nerve. B) Radial nerve. C) Ulnar nerve. D) Digital nerve. Show Answer Correct Answer: B) Radial nerve. 16. In the event of a reflex response, the message for the response originates from A) The brain. B) The spinal cord . Show Answer Correct Answer: B) The spinal cord . 17. All systems of the human body are made of: A) Bone. B) Muscle. C) Cells. D) Bacteria. Show Answer Correct Answer: C) Cells. 18. A thick column of nervous tissue that links the brain to the peripheral nervous system. A) Brain Stem. B) Cerebrum. C) Dendrite. D) Spinal Cord. Show Answer Correct Answer: D) Spinal Cord. 19. What is myopia? A) Near Sightedness. B) Far sightedness. Show Answer Correct Answer: A) Near Sightedness. 20. True or False. The sensory division of the PNS carries messages toward the brain. A) True. B) False. Show Answer Correct Answer: A) True. ← PreviousNext →Related QuizzesScience 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books