This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 539 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 539 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. It regulates the breathing and is also responsible for (REM) RAPID EYE MOVEMENT, stage in sleep that is associated with dreaming A) Midbrain. B) Pons. C) Medulla oblongata. D) None of above. Show Answer Correct Answer: B) Pons. 2. We have ..... eyes present in the eye sockets of our skull. A) Three. B) Five. C) Two. D) Ten. Show Answer Correct Answer: C) Two. 3. What are the nerves (neurons)? A) The signal carriers. B) The main highway. C) The brain and the spinal cord. D) A message carried by a neuron. Show Answer Correct Answer: A) The signal carriers. 4. If someone has problems with balance and estimating distances, what areas should be checked? A) Of the brain. B) Cerebellum. C) Brain stem. D) Spinal cord. Show Answer Correct Answer: B) Cerebellum. 5. What is the function of "afferent/sensory neurons" ? A) Connect neurons together. B) Carry impulses away from the CNS. C) Carry impulses towards the CNS. D) None of above. Show Answer Correct Answer: C) Carry impulses towards the CNS. 6. Controls the shape of the lens. A) Ciliary Body. B) Extrinsic Eye Muscles. C) Suspensory Ligaments. D) Optic Nerve. E) Iris. Show Answer Correct Answer: A) Ciliary Body. 7. Which of the following receptors senses chemicals? A) Chemoreceptors. B) Thermoreceptors. C) Mechanoreceptors. D) Nociceptors. Show Answer Correct Answer: A) Chemoreceptors. 8. When at rest, the charge inside the neuron is ..... and the charge outside the cell is ..... A) Negative; negative. B) Negative; positive. C) Positive; positive. D) Positive; negative. Show Answer Correct Answer: B) Negative; positive. 9. The function of dendrites is to: A) Receive information from other neurons. B) Secrete neurotransmitters to the postsynaptic neuron. C) Provide energy for the synthesis of acetylcholine. D) Connect the cell body with the terminal branches. E) Speed up transmission of synaptic neurotransmitters. Show Answer Correct Answer: A) Receive information from other neurons. 10. Air that is inhaled through the nose passes through the trachea before reaching the lungs. Then, the oxygen from air is dissolved into the blood and transported to all the parts of the body.Which two systems of the body are included in this process? A) Nervous system and skeletal system. B) Digestive system and nervous system. C) Muscular system and digestive system. D) Respiratory system and circulatory system. Show Answer Correct Answer: D) Respiratory system and circulatory system. 11. Motor neurons send information ..... A) To the brain for processing. B) Away from the brain to muscles. Show Answer Correct Answer: B) Away from the brain to muscles. 12. The gaps in the myelin sheath along the length of an axon are called: A) Synapses. B) Nodes of Ranvier. C) Neurotransmitters. D) Dendrites. Show Answer Correct Answer: B) Nodes of Ranvier. 13. Define stimulus. A) Change in an organism's environment that causes it to react. B) How the organism reacts to the stimulus. Show Answer Correct Answer: A) Change in an organism's environment that causes it to react. 14. What is epilepsy? A) Progressive destruction of myelin sheaths. B) Short, recurrent, periodic, attacks of motor, sensory, or psychological malfunction. C) Group of motor disorders due to loss of muscle control. D) Infection of meninges by bacteria. Show Answer Correct Answer: B) Short, recurrent, periodic, attacks of motor, sensory, or psychological malfunction. 15. What is threshold? A) Stimulus needed to cause an impulse. B) The inhibitory process. C) The refractory period. D) Build up of axons. Show Answer Correct Answer: A) Stimulus needed to cause an impulse. 16. The term quadriplegia means paralysis of ..... A) Both legs. B) All 4 extremities. C) One whole side of the body. D) Both arms. Show Answer Correct Answer: B) All 4 extremities. 17. Composed of primarily of the thalamus and hypothalamus, regulates vitals A) Diencephalon. B) Brain stem. C) Mid-brain. D) Cerebellum. Show Answer Correct Answer: A) Diencephalon. 18. If the liver is not functioning properly, what would most likely be the result? A) Food would not be able to move into the small intestsine. B) Fats would not be digested. C) Water would not be absored. D) It would not affect digestion. Show Answer Correct Answer: B) Fats would not be digested. 19. The brainstem is the portion of the brain that connects the brain with your spinal cord. It controls your ..... A) Balance and coordination. B) Breathing, hart rate, blood pressure. C) Voluntary movement, speech, hearing, vision, memory, reasoning. D) None of above. Show Answer Correct Answer: B) Breathing, hart rate, blood pressure. 20. The ..... is in charge of involuntary muscles movement such as breathing, your heart beat and your reflexes. A) Cerebrum. B) Cerebellum. C) Medulla. D) None of above. Show Answer Correct Answer: C) Medulla. ← 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