This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 43 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 43 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When no longer in Fight or Flight mode, feelings of calm is controlled by the; A) Sympathetic NS. B) Parasympathetic NS. Show Answer Correct Answer: B) Parasympathetic NS. 2. All are factors in the speed of action potential EXCEPT A) Diameter of the axon. B) The state of the myelin sheath on the axon. C) Temperature. D) Length of the axon. Show Answer Correct Answer: D) Length of the axon. 3. Which of the following are the parts of neurons? A) Brain, spinal cord, and vertebral column. B) Dendrite, axon, and cell body. C) Sensory and motor. D) Cortex, medulla and sheath. Show Answer Correct Answer: B) Dendrite, axon, and cell body. 4. If you are riding your bike you are using your ..... nervous system A) Somatic. B) Autonomic. Show Answer Correct Answer: A) Somatic. 5. What part of the brain allows for smooth coordinated movements? A) Pons. B) Midbrain. C) Medulla. D) Cerebellum. E) Hypothalamus. Show Answer Correct Answer: D) Cerebellum. 6. Choose the correct sequence for a sensory stimulus to take through the nervous system. A) Interneuron, afferent neuron, motor neuron. B) Motor neuron, interneuron, afferent neuron. C) Afferent neuron, interneuron, motor neuron. D) Interneuron, motor neuron, afferent neuron. Show Answer Correct Answer: C) Afferent neuron, interneuron, motor neuron. 7. The largest part of the brain separated into two hemispheres. A) Cerebellum. B) Frontal lobe. C) Cerebrum. D) White matter. Show Answer Correct Answer: C) Cerebrum. 8. How fast do messages travel in a neuron? A) 100 mph. B) 255 mph. C) 268 mph. D) 366 Mph. Show Answer Correct Answer: C) 268 mph. 9. What NS do you use when you breath? A) Voluntary. B) Involuntary. Show Answer Correct Answer: B) Involuntary. 10. ..... open or close in response to binding specific molecules. A) Activated channels. B) Voltage-gated and chemically gated channels. C) Leak channels. D) Ligan/Chemically gated channels. Show Answer Correct Answer: D) Ligan/Chemically gated channels. 11. Form myelin sheaths around axons in the PNS A) Astrocytes. B) Schwann cells. C) Microglia. D) Oligodendrocytes. Show Answer Correct Answer: B) Schwann cells. 12. True or false:Humans have cured several viruses. A) True. B) False. Show Answer Correct Answer: B) False. 13. What are the folds of the brain called? They allow for more nerve cells. A) Gyri. B) Sulci. C) Frontal. D) Brain stem. Show Answer Correct Answer: B) Sulci. 14. What would your body's response be to having the flame of a candle getting too close to your hand? A) To sweat. B) To yell. C) To pull your hand away. D) None of above. Show Answer Correct Answer: C) To pull your hand away. 15. Neurotransmitters are ..... that travel across the ..... to another cell. A) Electrical signals; receptors. B) Electrical signals; synapse. C) Chemicals; receptors. D) Chemicals; synapse. Show Answer Correct Answer: D) Chemicals; synapse. 16. What are the two divisions of the nervous system? A) Central and lower nervous systems. B) Central and peripheral nervous systems. C) Lower and cerebral nervous systems. D) None of above. Show Answer Correct Answer: B) Central and peripheral nervous systems. 17. Chronic obstructive pulmonary disease A) Respiratory tract. B) Wheezing. C) Chronic respiratory disease. D) None of above. Show Answer Correct Answer: C) Chronic respiratory disease. 18. Which part of the neuron is responsible for receiving signals from other neurons? A) Axon hillock. B) Myelin sheath. C) Dendrites. D) Neural soma. Show Answer Correct Answer: C) Dendrites. 19. The portion of the vertebrate nervous system consisting of the brain and spinal cord, coordinates higher functions including cognition, language, motor output A) Central nervous system. B) Cerebrospinal fluid. C) IPSP. D) EPSP. Show Answer Correct Answer: A) Central nervous system. 20. How do nerves trigger muscle contractions? A) By releasing neurotransmitters at neuromuscular junctions. B) By combining actin and myosin into an actinomyosin complex. C) By reversing the post synaptic potential at the neuromuscular junction. D) By releasing Ca2+ ions that are needed for breaking down ATP. Show Answer Correct Answer: A) By releasing neurotransmitters at neuromuscular junctions. ← 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