This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 70 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 70 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which group of mammals are experts at using sound echoes to gain information about the world? A) Lions and Tigers. B) Dolphins and Elephants. C) Wolves and Bears. D) Bats and Whales. Show Answer Correct Answer: D) Bats and Whales. 2. What is the inner most layer of the brain? A) Arachnoid. B) Dura mater. C) Pia mater. D) Cerebellum. Show Answer Correct Answer: C) Pia mater. 3. How many cranial nerves have the humans? A) 52. B) 12. C) 29. D) 47. Show Answer Correct Answer: B) 12. 4. Which event triggers the creation of an action potential? A) The sodium-potassium pump shuttles ions across the membrane. B) The membrane depolarizes above a certain threshold potential. C) Voltage-gated potassium channels open, and K+ ions diffuse out of the neuron. D) There is an undershoot of the resting potential. Show Answer Correct Answer: B) The membrane depolarizes above a certain threshold potential. 5. ..... is a protein that binds oxygen and stores it in muscle A) Mitochondria. B) Myoglobin. C) Actin. D) Troponin. Show Answer Correct Answer: B) Myoglobin. 6. A chemical that axons secrete to transmit the message to another neuron. A) Neurotransmitter. B) Calcium. C) Sodium. D) Potassium. Show Answer Correct Answer: A) Neurotransmitter. 7. Cranial nerve that is related to the sense of smell. A) Optic. B) Olfactory. C) Trigeminal. D) Glossopharyngeal. Show Answer Correct Answer: B) Olfactory. 8. Synapse that uses neurotransmitters to transfer signals from one neuron to another A) Mechanical synapse. B) Neurotransmitter. C) Chemical Synapes. D) None of above. Show Answer Correct Answer: C) Chemical Synapes. 9. Responsible for physical ability and balance A) Temporal lobe. B) Cerebellum. C) Parietal lobe. D) Frontal lobe. Show Answer Correct Answer: B) Cerebellum. 10. The spinal cord transfer information between the brain and the remaining body through ..... A) Brain. B) Nerves. C) Reflex action. D) None of the above. Show Answer Correct Answer: B) Nerves. 11. In which direction would impulses flow through a neuron A) From dendrites to axons. B) From axons to dendrites. C) From the cell body towards the dendrites. D) None of above. Show Answer Correct Answer: A) From dendrites to axons. 12. Made up of actin filaments. A) Fascicle. B) Myofilaments. C) Thick filament. D) Thin filament. Show Answer Correct Answer: D) Thin filament. 13. What does the pupil do? A) Protects the eye. B) Helps the eye focus. C) Allows light to enter eye. D) Reflects light that enter the eye. Show Answer Correct Answer: C) Allows light to enter eye. 14. Which of the following structures found within the plasma membrane of a neuron helps maintain its transmembrane potential. A) Exocytosis. B) Cell mediated endocytosis. C) Sodium-potassium pump. D) Concentration gradients. Show Answer Correct Answer: C) Sodium-potassium pump. 15. What type of injury is described as causing someone to lose consciousness from an impact to the head A) Concussion. B) Brain damage. C) Knock out. D) Hematoma. Show Answer Correct Answer: A) Concussion. 16. The organ system responsible for receiving stimuli from receptors and transmitting to effectors for stimulation A) Respiratory System. B) Integumentary System. C) Nervous System. D) Muscular System. Show Answer Correct Answer: C) Nervous System. 17. Our throat divides into two separate tubes:the windpipe and the gullet. What prevents food from entering the windpipe? A) The uvula. B) The tongue. C) The trachea. D) The epiglottis. Show Answer Correct Answer: D) The epiglottis. 18. Lipid-rich layer of insulation that surrounds an axon, formed by oligodendrocytes in the CNS and Schwann cells in the PNS; facilitates the transmission of electrical signals. A) Myelin Sheath. B) Dendrite. C) Thalamus. D) Response. Show Answer Correct Answer: A) Myelin Sheath. 19. Helps with hearing, forming speech, and memory A) Temporal lobe. B) Cerebellum. C) Parietal lobe. D) Frontal lobe. Show Answer Correct Answer: A) Temporal lobe. 20. An unusual manner of walking is called an ..... A) Weakness. B) Paralysis. C) Tremor. D) Abnormal gait. E) Hoarseness. Show Answer Correct Answer: D) Abnormal gait. ← 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