This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 338 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 338 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How many nerves are in the human body? A) 7 Trillion. B) 3 Trillion. C) 2 Million. D) 700 Million. Show Answer Correct Answer: A) 7 Trillion. 2. Which of the following is a symptom of early Alzheimer's A) Seizures. B) Hot flashes. C) Short-term memory loss. D) Impaired vision. Show Answer Correct Answer: C) Short-term memory loss. 3. Which lobe controls sense of hearing and memories? A) Frontal. B) Parietal. C) Temporal. D) Occipital. Show Answer Correct Answer: C) Temporal. 4. ..... are deep grooves in the cerebral cortex that divide the brain into lobes. A) Gyri. B) Fissures. C) Sulci. D) None of above. Show Answer Correct Answer: B) Fissures. 5. Which comes first in the nervous system ..... A) Sensing pathway. B) Processing pathway. C) Response pathway. D) None of above. Show Answer Correct Answer: A) Sensing pathway. 6. Occurs when the soft tissue of the brain is bruised as it collides against the skull. A) Contusion. B) Concussion. C) Reflex. D) Fracture. Show Answer Correct Answer: B) Concussion. 7. What are neurofibrils? A) Fine threads that extend from the cell body into the axon to support it. B) The cone-shaped thickening found between the cell body and the axon. C) Fine extensions with specialized endings located at the end of an axon. D) The tips of the axon terminals, located close to the receptive surface of another cell. E) The small space between a neuron and another cell. Show Answer Correct Answer: A) Fine threads that extend from the cell body into the axon to support it. 8. What does the P in PNS stand for? A) Peretal. B) Peripheral. C) Portal. D) Prevalent. Show Answer Correct Answer: B) Peripheral. 9. What are the main divisions of the ANS?i) Sympathetic divisionii) Parasympathetic divisioniii) Somatic division A) I and iii. B) Ii and iii. C) I and ii. D) All of above. Show Answer Correct Answer: C) I and ii. 10. All sensory neurons are A) Unipolar. B) Multipolar. C) Bipolar. D) None of above. Show Answer Correct Answer: A) Unipolar. 11. The ..... is the specialized region of the sarcolemma containing ACh receptors A) Synaptic knob. B) Motor end plate. C) Synaptic cleft. D) Resting membrane potential. Show Answer Correct Answer: B) Motor end plate. 12. Acetylcholine & dopamine are examples of A) Neurotransmitters. B) Secretions from gland cells. C) Synapses. D) Neurones. Show Answer Correct Answer: A) Neurotransmitters. 13. If the ventral root is damaged, which of the following consequences is most likely? A) Loss of motor function. B) Loss of sensory function. C) Loss of integration function. D) Loss of effector function. Show Answer Correct Answer: A) Loss of motor function. 14. Ben was enjoying a walk in the woods on a beautiful Saturday afternoon. As he went around a curve, he noticed a bear walking toward him. Immediately his pupils dilated, he began to perspire, and his heart accelerated. These changes are most closely related to the function of the A) Parasympathetic nervous system. B) Sympathetic nervous system. C) Somatic nervous system. D) Hippocampus. E) Motor cortex. Show Answer Correct Answer: B) Sympathetic nervous system. 15. Which of these is not a reflex response? A) Moving a hand off something hot. B) Sneezing. C) Picking up a book. D) Wink of eyes. Show Answer Correct Answer: C) Picking up a book. 16. What response in a neuron causes the K to flow out of the cell and decrease the charge of the membrane potential? A) Trigger response. B) Depolarization. C) Repolarization. D) Resting potential. E) Refractory period. Show Answer Correct Answer: C) Repolarization. 17. Any message carried by a neuron is called a(n) A) Impulse. B) Neuron. C) Effector. D) Receptor. Show Answer Correct Answer: A) Impulse. 18. Show me your teeth A) Show belly. B) Push hands. C) Show teeth. D) None of above. Show Answer Correct Answer: C) Show teeth. 19. Localized collection of neuron cell bodies in the peripheral nervous system. A) Ganglion. B) Axon Terminal. C) Schwann Cell. D) Neurotransmitter. Show Answer Correct Answer: A) Ganglion. 20. Irregular heart beat A) Heart pounding. B) Heart disease. C) Irregular heartbeat. D) None of above. Show Answer Correct Answer: C) Irregular heartbeat. ← 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