This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 729 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 729 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A change in the external (outside) environment of an organism that causes a response. A) Internal Stimulus. B) External Stimulus. C) Stimulus. D) Response. Show Answer Correct Answer: B) External Stimulus. 2. During which phase of an action potential do sodium channels open up and the inside of the cell go from a negative to a positive charge? A) Depolarization. B) Polarization. C) Repolarization. D) Resting phase. Show Answer Correct Answer: A) Depolarization. 3. Which of the following is the correct sequence: A) Effector, afferent neuron, integration center, efferent neuron, receptor. B) Receptor, afferent neuron, integration center, efferent neuron, effector. C) Effector, efferent neuron, integration center, afferent neuron, receptor. D) Receptor, efferent neuron, integration center, afferent neuron, effector. Show Answer Correct Answer: B) Receptor, afferent neuron, integration center, efferent neuron, effector. 4. Acts as shock absorbersource of nutrients for the brain A) Medulla oblongata. B) Cerebellum. C) Cerebrospinal Fluid. D) Brain. Show Answer Correct Answer: C) Cerebrospinal Fluid. 5. A loss of feeling is called ..... A) Deafness. B) Blindness. C) Numbness. D) Unsteadiness. E) Incoordination. Show Answer Correct Answer: C) Numbness. 6. The pressure of cerebrospinal fluid is usually measured by introducing a hollow needle between lumbar vertebrae into the A) Dura mater. B) Arachnoid mater. C) Subarachnoid space. D) Pia mater. Show Answer Correct Answer: C) Subarachnoid space. 7. Which neurotransmitter is associated with feelings of pleasure and reward? A) Dopamine. B) Serotonin. C) GABA. D) Glutamate. Show Answer Correct Answer: A) Dopamine. 8. Which section of the brain helps regulate heartbeat and respiration? A) Cerebellum. B) Cerebrum. C) Diencephalon". D) Brain stem. Show Answer Correct Answer: D) Brain stem. 9. An action is called a ..... A) Stimulus. B) Message. C) Response. D) Nerve. Show Answer Correct Answer: C) Response. 10. Cells that transmit electrical impulses A) Neurons. B) Cell body. C) Dendrites. D) Axon. Show Answer Correct Answer: A) Neurons. 11. What meninges are a outermost layer, tough connective tissue. A) Dura mater. B) Pia mater. C) Arachnoid mater. D) None of above. Show Answer Correct Answer: A) Dura mater. 12. Which nervous system controls the 12 cranial nerves and 31 spinal nerves A) PNS. B) CNS. Show Answer Correct Answer: A) PNS. 13. Touch, pain, pressure A) Parietal lobe. B) Occipital lobe. C) Frontal lobe. D) Temporal lobe. Show Answer Correct Answer: A) Parietal lobe. 14. Which part of the Nervous System, includes smaller neurons that gather information from the rest of the body and reports back to the Central Nervous System? A) A reflex. B) The node of Ranvier. C) The CNS. D) The Peripheral Nervous System. Show Answer Correct Answer: D) The Peripheral Nervous System. 15. Which brain function might be directly affected by an injury to the frontal lobe? A) Processing sound input. B) Recognizing faces. C) Processing light input. D) Making decisions. Show Answer Correct Answer: D) Making decisions. 16. How many nerve cells are in the human body? A) 86 million. B) 86 billion. C) 86 billion. D) 97 billion. Show Answer Correct Answer: B) 86 billion. 17. ..... ions start outside the cell and then move into the cell to cause depolarization of a neuron A) Chlorine. B) Proteins. C) Sodium. D) Potassium. Show Answer Correct Answer: C) Sodium. 18. What is the Number and function of the Glossopharyngeal A) #5-moves the tongue. B) #8-helps you hear. C) #11-moves the tongue. D) #9-taste, swallowing, saliva. Show Answer Correct Answer: D) #9-taste, swallowing, saliva. 19. What is the function of Schwann cells in the peripheral nervous system? A) Form fatty myelin sheaths around nerve fibers. B) Serve as cushioning support cells. C) Link nutrient-supplying capillaries to neurons. D) Absorb and dispose of dead cells and bacteria. Show Answer Correct Answer: A) Form fatty myelin sheaths around nerve fibers. 20. Which effect will be observed following the administration of nicotinic cholinergic antagonist? A) Only sympathetic effects are inhibited. B) Only parasympathetic effects are inhibited. C) Both sympathetic and parasympathetic effects are inhibited. D) Both sympathetic and parasympathetic effects are unaffected. Show Answer Correct Answer: C) Both sympathetic and parasympathetic effects are inhibited. ← 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