This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 943 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 943 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Identify the neuroglia described:They perform phagocytosis and provide structural support A) Astrocytes. B) Ependymal. C) Schwann Cells. D) Oligodendrocytes. E) Microglia. Show Answer Correct Answer: E) Microglia. 2. The small intestine is lined with villi which are responsible for A) Absorption. B) Chemical breakdown. C) Peristalsis. D) Propulsion. Show Answer Correct Answer: A) Absorption. 3. What is labeled P? A) Sensory neuron. B) Motor neuron. C) Interneuron. D) Ventral root. Show Answer Correct Answer: D) Ventral root. 4. "Fight or flight" best describes the functions of the A) Parasympathetic nervous system. B) Sympathetic nervous system. Show Answer Correct Answer: B) Sympathetic nervous system. 5. Surrounds the axons for insulation A) Chromatophilic substance. B) Myelin. C) Nodes of Ranvier. D) Neurofibrils. Show Answer Correct Answer: B) Myelin. 6. What part of the eye is #1 pointing to? A) Iris. B) Pupil. C) Sclera. D) Cornea. E) Retina. Show Answer Correct Answer: A) Iris. 7. The part of the brain at the back of the skull that coordinates muscles, voluntary movements posture, and balance. A) Cerebellum. B) Neuron. Show Answer Correct Answer: A) Cerebellum. 8. A cell in the nervous system is called a A) Neuron. B) Axon. C) Nucleus. D) Dendrite. Show Answer Correct Answer: A) Neuron. 9. This is the groove that separates the frontal and temporal lobes of the cerebrum. A) Circular Sulcus. B) Central Sulcus. C) Lateral Sulcus. D) Longitudinal Fissure. Show Answer Correct Answer: C) Lateral Sulcus. 10. Shield eyes from overhead light A) Eyelashes. B) Eyelids. C) Eyebrows. D) None of above. Show Answer Correct Answer: C) Eyebrows. 11. You are walking barefoot in your yard. You feel the grass on your toes and small stones and twigs under your feet. You feel them because of these nerve cells. A) Interneurons. B) Sensory neurons. C) Motor neurons. D) None of above. Show Answer Correct Answer: B) Sensory neurons. 12. Deep tendon reflexes are elicited by tapping on a tendon, which stimulates: A) Muscle contraction. B) Skin sensation. C) Bone growth. D) Nerve regeneration. Show Answer Correct Answer: A) Muscle contraction. 13. The colored portion of the eye with an opening in the center called a pupil is the? A) Sclera. B) Conjunctiva. C) Cornea. D) Iris. Show Answer Correct Answer: D) Iris. 14. During the falling action potential (repolarization) and hyperpolarization, what channels are open? A) Sodium. B) Potassium. C) Calcium. D) Both sodium and potassium. Show Answer Correct Answer: B) Potassium. 15. What are the chemicals that move the action potential from one neuron to the next? A) Ions. B) Myelintransmitters. C) Electotransmitters. D) Neurotransmitters. Show Answer Correct Answer: D) Neurotransmitters. 16. To say that stimulation of smooth muscle $\rightarrow$ constriction and inhibition of smooth muscle $\rightarrow$ dilation is a bit of a simplification for several reasons:1) It depends on where the smooth muscle is located, 2) Some smooth muscle doesn't line a tract and 3) We need to know more about ligands, receptors, and signal transduction pathways to make a determination as to the effect of stimulation/inhibition on a smooth muscle fiber A) True. B) False. Show Answer Correct Answer: A) True. 17. The orders from the central nervous system produce: A) Sensitive nervous and motor nerves. B) Carry information to the muscles. C) Voluntary and involuntary movements. D) None of above. Show Answer Correct Answer: C) Voluntary and involuntary movements. 18. What ions are necessary for a nerve impulse to occur? A) Carbon and sodium. B) Oxygen and carbon. C) Potassium and sodium. D) Hydrogen and potassium. Show Answer Correct Answer: C) Potassium and sodium. 19. The outermost membrane of the brain is the ..... A) Skull. B) Dura mater. C) Pia mater. D) Arachnoid mater. Show Answer Correct Answer: B) Dura mater. 20. Deals with the senses A) Parietal Lobe. B) Occipital Lobe. C) Temporal Lobe. D) Frontal Lobe. Show Answer Correct Answer: A) Parietal Lobe. ← 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