This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 222 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 222 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the insulating membrane that surrounds parts of the axon that helps to protect & propagate action potential? A) Axon. B) Dendrites. C) Node of Ranvier. D) Myelin Sheath. Show Answer Correct Answer: D) Myelin Sheath. 2. What cranial nerve is connected to the eye? A) Olfactory. B) Optic. C) Facial. D) Vagus. Show Answer Correct Answer: B) Optic. 3. The cerebrum is divided into two halves called A) Quarters. B) Sections. C) Parts. D) Hemispheres. Show Answer Correct Answer: D) Hemispheres. 4. What is letter D? (BRIGHT BLUE) A) Skin. B) Spinal cord. C) Sensory neuron. D) Ions. Show Answer Correct Answer: C) Sensory neuron. 5. The receptors that sense light A) Thermoreceptor. B) Chemoreceptor. C) Mechanoreceptor. D) Photoreceptor. Show Answer Correct Answer: D) Photoreceptor. 6. What is the role of the axon hillock? A) Diminishes cell signaling. B) Role in the production chemotaxis molecules. C) Protection of the axon. D) "Gate-keeping" graded potentials and ultimately the source of action potentials. Show Answer Correct Answer: D) "Gate-keeping" graded potentials and ultimately the source of action potentials. 7. Which of the following statements about the action potential is false? A) During the hyperpolarization phase, the ion pumps re-establish the sodium and potassium concentrations across the cell membrane. B) During the repolarization phase, sodium channels close and potassium channels open. C) The rapid depolarization phase is caused by the entry of potassium ions. D) During the depolarization phase, membrane potential becomes positive. Show Answer Correct Answer: C) The rapid depolarization phase is caused by the entry of potassium ions. 8. Part of autonomic nervous, calms you down A) Parasympathetic. B) Sympathetic. Show Answer Correct Answer: A) Parasympathetic. 9. The blood-brain barrier that controls the transfer of blood components from blood vessels associated with the spinal cord. A) True. B) False. Show Answer Correct Answer: B) False. 10. What is the function of cones in the retina? A) To register black and white. B) To detect fine detail and color. C) To control the size of the pupil. D) To protect the eye from ultraviolet light. Show Answer Correct Answer: B) To detect fine detail and color. 11. Made up of the nerves and sensory organs. A) Central NS. B) Peripheral NS. Show Answer Correct Answer: B) Peripheral NS. 12. The somatic nervous system ..... A) Is under our conscious control. B) Is not under our conscious control. C) Includes the brain and spinal cord. D) Connects the central nervous system to the rest of the body. Show Answer Correct Answer: A) Is under our conscious control. 13. A long, then fiber connected to the motor neuron cell body A) Axon. B) Neuron. C) Gray matter. D) Astrocytes. Show Answer Correct Answer: A) Axon. 14. WHAT HELPS US TO FEEL IF A THING IS COLD OR HOT A) SKIN. B) EAR. C) HAIR. D) NAIL. Show Answer Correct Answer: A) SKIN. 15. The gap between the nerve cell and sarcolemma is the ..... A) Synaptic cleft. B) Neurotransmitter. C) Motor unit. D) Neuromuscular junction. Show Answer Correct Answer: A) Synaptic cleft. 16. What is labeled H? A) Sensory neuron. B) Motor neuron. C) Interneuron. D) Ventral root. Show Answer Correct Answer: A) Sensory neuron. 17. Which of the following bones produce blood cells in our body? A) Bones in skull. B) The spine. C) Humerus and femur. D) The ribcage. Show Answer Correct Answer: C) Humerus and femur. 18. Collection of nerve cell PROCESSES in the CNS A) Nerve. B) Tract. C) Nuclei. D) Ganglion. Show Answer Correct Answer: B) Tract. 19. Name the following in order from largest to smallest: A) Muscle, muscle fascicle, muscle cell, myofibril, filaments. B) Muscle, muscle fascicle, muscle cell, filaments, myofibril. C) Muscle, muscle cell, muscle fascicle, myofibril, filaments. D) Muscle, muscle cell, muscle fascicle, filaments, myofibril. Show Answer Correct Answer: A) Muscle, muscle fascicle, muscle cell, myofibril, filaments. 20. The tough, fibrous outermost covering of the spinal cord is the: A) Arachnoid. B) Pia mater. C) Dura mater. D) Subarachnoid. Show Answer Correct Answer: C) Dura mater. ← 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