This quiz works best with JavaScript enabled. Home > Science > Biology > Nervous System – Quiz 969 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 969 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The all-or-none principle explains the idea that if a stimulus is strong enough to generate an action potential, the impulse A) Conducts along the entire length of the axon at the same strength and speed. B) Conducts at varying strengths and speeds depending on the impulse. C) Will not conduct along the axon at all. D) Conducts partially down the axon. Show Answer Correct Answer: A) Conducts along the entire length of the axon at the same strength and speed. 2. What are the principal functions of information processing? A) Sensory input, transmission, motor output. B) Signal reception, signal conduction, signal integration. C) Sensory input, integration, motor output. D) Sensory input, integration, effector output. Show Answer Correct Answer: C) Sensory input, integration, motor output. 3. Oligodendrocytes and Schwann cells comprise these that wrap around and insulate the axons, protecting them from ion flow. A) Myelin sheaths. B) Nodes of Ranvier. C) Nerves. D) Neurolemma. E) Ionic membrane. Show Answer Correct Answer: A) Myelin sheaths. 4. Which neurotransmitter do the fibers of the somatic nervous system release? A) Acetylcholine. B) Norepinephrine. Show Answer Correct Answer: A) Acetylcholine. 5. Multipolar, take impulses from CNS to somatic motor effectors or visceral/autonomic motor receptors ..... is an example of what Functional Classification of NeuronsF A) Sensory/Afferent Neurons. B) Motor/Efferent Neuroses. C) Interneuron. D) None of above. Show Answer Correct Answer: B) Motor/Efferent Neuroses. 6. The nerves of the ..... nervous system control functions of the body that are not under conscious control. A) Autonomic. B) Sensory. C) Central. D) Peripheral. Show Answer Correct Answer: A) Autonomic. 7. An impulse can happen in an absolute refactoring period. A) True. B) False. Show Answer Correct Answer: B) False. 8. The portion of the eye that protects the retina from potentially harmful ultraviolet (UV) radiation is the A) Retina. B) Pupil. C) Iris. D) Cornea. Show Answer Correct Answer: C) Iris. 9. Controls balance, movement, posture, muscle coordination A cluster of nerve tissue that forms the basis for the brain A) Cerebellum. B) Medulla. C) Spinal cord. D) Cerebrum. Show Answer Correct Answer: A) Cerebellum. 10. This works with the Pons controlling the rate and depth of breathing. A) Vasomotor Center. B) Center of Other Controls. C) Respiratory Center. D) Cardiac Center. Show Answer Correct Answer: C) Respiratory Center. 11. What is one thing that the skeletal system does? A) Helps us breathe. B) Protects our organs. C) Pumps blood to the rest of our body. D) Helps us see. Show Answer Correct Answer: B) Protects our organs. 12. The three main parts of the nervous system are the: A) Lungs, mouth, trachea. B) Esophagus, stomach, intestines. C) Blood, heart, veins. D) Brain, spinal cord, nerves. Show Answer Correct Answer: D) Brain, spinal cord, nerves. 13. Where does the image form for myopic vision? A) On the retina. B) Behind the retina. C) In front of retina. D) No image form. Show Answer Correct Answer: C) In front of retina. 14. What type of stimulus? An infection in the body A) Internal. B) External. Show Answer Correct Answer: A) Internal. 15. ..... is the basic structural unit of the nervous system. A) Neuron. B) Cell. C) Tissue. D) None of above. Show Answer Correct Answer: A) Neuron. 16. Free nerve endings are closest together in the A) Palm. B) Fingertips. C) Forearm. D) None of above. Show Answer Correct Answer: B) Fingertips. 17. What part of the brain deals with appetite and temperature control? A) Cerebellum. B) Cerebrum. C) Hypothalamus. D) Brain stem. Show Answer Correct Answer: C) Hypothalamus. 18. What is the cyton?(Just answer no need it is or anything) A) Cell body. B) Tail. C) Nucleus. D) None of above. Show Answer Correct Answer: A) Cell body. 19. What two systems does motor division divide into? A) Somatic Nervous system and Autonomic Nervous System. B) Peripheral Nervous system and Central Nervous system. Show Answer Correct Answer: A) Somatic Nervous system and Autonomic Nervous System. 20. Neurons that are responsible for detecting changes in the environment and sending that stimulus to the brain are called A) Motor/efferent. B) Smooth. C) Sensory/afferent. D) Axons. Show Answer Correct Answer: C) Sensory/afferent. ← 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