This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 549 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 549 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the purpose of the sympathetic nervous system? A) Controls voluntary movements. B) Controls involuntary functions. C) Prepares the body for 'fight or flight'. D) Transmits information to the CNS. Show Answer Correct Answer: C) Prepares the body for 'fight or flight'. 2. Why central nervous system called central nervou system A) It integrates the received information and coordinates. B) Influences the activity of all parts of the bodies of bilaterally symmetric animals. Show Answer Correct Answer: A) It integrates the received information and coordinates. 3. Which of the following is characterized by having a membrane potential below-70mV? A) Refractory period. B) Resting potential. C) Action potential. D) Threshold. Show Answer Correct Answer: A) Refractory period. 4. This portion of the brain controls heart rate, vomiting or coughing A) Cerebral Cortex. B) Cerebellum. C) Pons. D) Spinal cord elongated. Show Answer Correct Answer: D) Spinal cord elongated. 5. Thrombokinase activates ..... A) Inactive prothrombin. B) Soluble fibrinogen. C) Insoluble fibrin. D) Clot. Show Answer Correct Answer: A) Inactive prothrombin. 6. What is the function of the axons? A) Cells that produce the myelin sheath around the neuron axons. B) The junction of a neuron with another neuron or muscle. C) They are input channels that lead to the neuron's body and convey incoming messages toward the cell body. D) They are long, output channels that extend from a neuron's body that transmit information to different neurons, muscles, and glands. Show Answer Correct Answer: D) They are long, output channels that extend from a neuron's body that transmit information to different neurons, muscles, and glands. 7. Why is your spinal cord important? A) Because it holds our spine together. B) Because all communication travel through the spinal cord, towards and away from the brain. C) Because it interprets and controls our senses. D) It speeds up the transmission of nerve impulses. Show Answer Correct Answer: B) Because all communication travel through the spinal cord, towards and away from the brain. 8. Which lobe is responsible for intellect and personality? A) Frontal. B) Parietal. C) Occipital. D) Temporal. Show Answer Correct Answer: A) Frontal. 9. Which of the following forms the cerebrospinal fluid (CSF)? A) Medulla oblongata. B) Pons. C) Epithelium. D) Thalamus. Show Answer Correct Answer: C) Epithelium. 10. -cusis A) Hearing. B) Tasting. C) Seeing. D) Balance. Show Answer Correct Answer: A) Hearing. 11. Sensory neurons deliver..... signals. A) Chemical. B) Electrical. C) Electrochemical. D) None of above. Show Answer Correct Answer: B) Electrical. 12. When your body receives signals from an external environment and transmits the information to the brain, which body system is being used A) Nervous. B) Outgrowths. C) Digestive. D) Skeletal. Show Answer Correct Answer: A) Nervous. 13. The area that controls involuntary functions. A) Spinal cord. B) Brain stem. C) Central nervous system. D) None of above. Show Answer Correct Answer: B) Brain stem. 14. In the central nervous system (CNS), which type of neurons is primarily responsible for transmitting information between different regions of the brain and spinal cord, it receive information from our senses and relay them to our muscle (response)? A) Relay neurons. B) Sensory neurons. C) Motor neurons. D) Photoreceptors. Show Answer Correct Answer: A) Relay neurons. 15. Activates the "fight or flight" response: A) Sympathetic nervous system. B) Parasympathetic system. C) Somatic nervous system. D) Cerebellum. Show Answer Correct Answer: A) Sympathetic nervous system. 16. My/o, my/o A) Point of contact; to join. B) Medulla oblongata. C) Meninges. D) Split. Show Answer Correct Answer: C) Meninges. 17. Structure surrounding the lens that connects the choroid and iris. It contains ciliary muscles, which control the shape of the lens, and it secretes aqueous humor. A) Iris. B) Sclera. C) Ciliary body. D) Pupil. Show Answer Correct Answer: C) Ciliary body. 18. When potassium channels open A) Potassium ions move into the cell. B) Potassium ions move out of the cell. C) Sodium ions move into the cell. D) Sodium ions move out of the cell. Show Answer Correct Answer: B) Potassium ions move out of the cell. 19. Actions that you do automatically, without you having to think about them, are called ..... A) Fast. B) Flexible. C) Reflex. D) Repeat. Show Answer Correct Answer: C) Reflex. 20. Part of the brain that coordinates movements that start from the motor cortex A) Cerebrum. B) Brain stem. C) Cerebellum. D) Diencephalon. Show Answer Correct Answer: C) Cerebellum. ← 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