This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 127 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 127 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Amy was in an automobile accident. Her spinal cord was severed and she sustained damage to her brain. The medical staff at the trauma center understands that this substance might leak into surrounding tissues. What is the substance? A) Cerebral aqueduct. B) Cerebrospinal fluid. C) Choroid plexus. D) Callous body. Show Answer Correct Answer: B) Cerebrospinal fluid. 2. Rhiz/o A) Nerve root. B) Sensation, sensitivity, feeling. C) Nerve. D) None of above. Show Answer Correct Answer: A) Nerve root. 3. Cerebrospinal fluid is produced in A) Arachnoid villi. B) Choroid plexus. C) Superior sagittal sinus. D) Central canal. Show Answer Correct Answer: B) Choroid plexus. 4. Which brain scan shows blood vessles in the brain? A) MEG. B) MRA. C) MRI. D) FSMRI. Show Answer Correct Answer: B) MRA. 5. The neurons that send signals from the brain to the body are ..... A) Sensory Neurons. B) Motor Neurons. C) Interneurons. D) None of above. Show Answer Correct Answer: B) Motor Neurons. 6. When you smell something, the message from your nose to your brain travel over afferent neurons. A) True. B) False. Show Answer Correct Answer: A) True. 7. The portion of the brain that contains 75% of the neuron bodies is the A) Olfactory bulbs. B) Vermis of the cerebellum. C) Cerebral cortex. D) Brainstem. Show Answer Correct Answer: C) Cerebral cortex. 8. Covers the iris and pupil A) Retina. B) Lens. C) Cornea. D) Cone. Show Answer Correct Answer: C) Cornea. 9. What is the basic structural unit of the nervous system? A) Blood vessel. B) Muscle. C) Brain. D) Neuron. Show Answer Correct Answer: D) Neuron. 10. The nerve which extends the elbow is the A) Radial nerve. B) Musculocutaneous nerve. C) Ulnar nerve. D) Axillary nerve. Show Answer Correct Answer: A) Radial nerve. 11. Voltage-gated Na+ channels open upon reaching what state? A) Resting potential. B) Threshold. C) Repolarization. D) Overshoot. Show Answer Correct Answer: B) Threshold. 12. Arms and legs are part of the ..... nervous system. A) PNS. B) CNS. Show Answer Correct Answer: A) PNS. 13. This type of response DOES NOT require you to think about it to control it. (examples= regular breathing, regular blinking) A) VOLUNTARY. B) INVOLUNTARY. Show Answer Correct Answer: B) INVOLUNTARY. 14. Your ..... nervous system is your body's control center A) Peripheral. B) Central. C) Main. D) Outer. Show Answer Correct Answer: B) Central. 15. Motor neurons carry impulses ..... the brain A) Towards. B) Away from. C) Within. D) None of above. Show Answer Correct Answer: B) Away from. 16. Functions of the Cerebellum? A) Posture, balance. B) Coordination, speech. C) Smooth and balanced muscular activity. D) All of the above. Show Answer Correct Answer: D) All of the above. 17. The three main parts of the brain are ....., ....., and ..... A) Cerebrum, spinal cord, heart. B) Cerebrum, Cerebellum, Brain stem. C) Cerebrum, Medulla, Gray Matter. D) Pons, medulla, midbrain. Show Answer Correct Answer: B) Cerebrum, Cerebellum, Brain stem. 18. Along a neuron, the correct pathway for impulse conduction is: A) Dendrite, axon, cell body, receptor. B) Dendrite, cell body, axon. C) Cell body, axon, dendrite. D) Receptor, axon, cell body. Show Answer Correct Answer: B) Dendrite, cell body, axon. 19. The reaction to a stimulus A) Response. B) Reflex. C) Neuron. D) Axon. E) Impulse. Show Answer Correct Answer: A) Response. 20. What is the chemical used by a neuron to transmit an impulse across a synapse to another nerve cell? A) Neurotransmitters. B) Threshold. C) Conclusion. D) Impulse. Show Answer Correct Answer: A) Neurotransmitters. ← 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