This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 87 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 87 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This controls involuntary actions of the PNS. A) Somatic. B) Autonomic. Show Answer Correct Answer: B) Autonomic. 2. What happens at a neuron-neuron chemical synapse when Ca enters the axon terminals? A) Synaptic vesicles fuse with the cell membrane and release NT's. B) An action potential is generated. C) NT's bind to receptors on the post-synaptic neuron. D) None of above. Show Answer Correct Answer: A) Synaptic vesicles fuse with the cell membrane and release NT's. 3. The reflex test is often done by gently hitting a soft object under the kneecap so that the patient's lower leg moves forward unconsciously. The reflex arc that produces this movement has the following path ..... A) Knee-sensory nerves-connector nerves-motor nerves-feet. B) Knee-motor nerves-spinal cord-sensory nerves-feet. C) Knee-sensory nerves-spinal cord-motor nerves-feet. D) Knee-motor nerves-brain-sensory nerves-feet. Show Answer Correct Answer: C) Knee-sensory nerves-spinal cord-motor nerves-feet. 4. What determines whether a cell is a target cell for a particular signal molecule? A) Phosphorylation cascade. B) CAMP. C) Signal receptors. D) Phosphatase. Show Answer Correct Answer: C) Signal receptors. 5. Type of neuron that carries a message to a muscle A) Motor. B) Sensory. C) Interneuron. D) None of above. Show Answer Correct Answer: A) Motor. 6. When an individual suffers a traumatic brain injury, oftentimes the brain is able to adapt and change allowing the individual to overcome the injury. This is an example of: A) Plasticity. B) Complexity. C) Integration. D) Electrochemical transmission. Show Answer Correct Answer: A) Plasticity. 7. The autonomic nervous system prepares the body for the "fight or flight" response by: A) Heightening the senses. B) Increasing heart rate and blood pressure. C) Decreasing the pain sensation. D) Increasing blood supply to the kidneys. Show Answer Correct Answer: B) Increasing heart rate and blood pressure. 8. In the Peripheral Nervous System, ..... neurons bring information to the spinal cord. A) Sensory. B) Motor. Show Answer Correct Answer: A) Sensory. 9. A nerve impulse is initiated when ..... A) A reversal in the polarized state of the cell causes it to reach threshold. B) Physical disruption of the cell membrane causes some of its contents, including ions, to leak out. C) Schwann cells move into their new positions. D) Voltage-gated channels close. Show Answer Correct Answer: A) A reversal in the polarized state of the cell causes it to reach threshold. 10. When you step on a tack your body receives information about pain. This is due to ..... A) Mechanoreceptors. B) Thermoreceptors. C) Chemoreceptors. D) Photoreceptors. Show Answer Correct Answer: A) Mechanoreceptors. 11. What are the two types of nervous tissue found in a cross section of both the spinal cord and the brain? A) White matter and gray matter. B) Schwann cells and oligodendrocytes. C) Sensory neurons and motor neurons. D) Astrocytes and ependymal cells. Show Answer Correct Answer: A) White matter and gray matter. 12. Identify this muscle of the eye A) Upper right. B) Lower right. C) Medial rectus. D) Lateral rectus. Show Answer Correct Answer: C) Medial rectus. 13. The tube that connects the middle ear with the pharynx and impacts your sense of balance is the? A) Eustachian. B) Palantine. C) Esophagus. D) Tympanic. Show Answer Correct Answer: A) Eustachian. 14. Identify the part of skeleton who protects our brain from any kind of injury. A) Skull. B) Collar bone. C) Spinal cord. D) None of above. Show Answer Correct Answer: A) Skull. 15. Schwann cells produce layers of membrane containing myelin, which provides nutrition for the dendrites. A) True. B) False. Show Answer Correct Answer: B) False. 16. It is an action or condition that causes an immediate reaction. A) Stimulus. B) Octopus. C) Herodotus. D) None of above. Show Answer Correct Answer: A) Stimulus. 17. Little Joey is having problems with his scapula winging out. Nerve damage has been ruled out and the PT has asked you to implement a strengthening program for Joey. You would concentrate your efforts on which muscle group? A) Serratus anterior muscle. B) Levator scapula. C) Upper trapezius. D) Middle trapezius. Show Answer Correct Answer: A) Serratus anterior muscle. 18. The spinal cord is made of one HUGE cell that creates a bundle. A) True. B) False. Show Answer Correct Answer: B) False. 19. Inability to speak or understand this spoken word is called as A) Insomnia. B) Inaction. C) Agnosia. D) Aphasia. Show Answer Correct Answer: D) Aphasia. 20. Process of neuron that receives input from other neurons A) Dendrite. B) Axon. C) Postganglionic fiber. D) Preganglionic fiber. Show Answer Correct Answer: A) Dendrite. ← 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