This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 464 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 464 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. One primary function of the spinal cord is to A) Transmit information back and forth from the brain to the glands and muscles. B) Contain all motor neurons to help individuals move about. C) Feed nutrients to the brain cells. D) Contain all sensory neurons to help individuals sense the world around them. Show Answer Correct Answer: A) Transmit information back and forth from the brain to the glands and muscles. 2. What is the principal behind a nerve impulse being conducted either fully or not at all? A) Random Principal. B) Variable Principal. C) All or None Principle. D) Partial Principal. Show Answer Correct Answer: C) All or None Principle. 3. There are ..... types of neurons. A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 4. Water fluid found in the anterior cavity of the eye A) Aqueous humor. B) Vitreous humor. C) Lysozyme. D) Sclera. Show Answer Correct Answer: A) Aqueous humor. 5. Choose the response that would occur after this stimuli:You touch something hot. A) You sweat. B) You produce more saliva. C) You pull your hand away. D) You squint your pupil will constrict, or get smaller. Show Answer Correct Answer: C) You pull your hand away. 6. Electrical impulses change into a ..... to travel across this space. A) Chemical. B) Dendrite. Show Answer Correct Answer: A) Chemical. 7. Waves get ..... in graded potential A) Smaller. B) Bigger. Show Answer Correct Answer: A) Smaller. 8. In a case where someone encounters a dangerous situation, such as being chased by a wild animal, which of the following responses would be primarily controlled by the sympathetic nervous system? A) To promote rest and digestion. B) To stimulate fight-or-flight responses. C) To conserve energy and decrease heart rate. D) To regulate involuntary bodily functions during relaxation. Show Answer Correct Answer: B) To stimulate fight-or-flight responses. 9. Which part of the neuron is responsible for transmitting electrical signals away from the cell body? A) Nucleus. B) Dendrites. C) Axon. D) Axon Terminals. Show Answer Correct Answer: C) Axon. 10. Synaptic knobs are at the ends of A) Axons. B) Neuroglia. C) Cell bodies. D) Dendrites. Show Answer Correct Answer: A) Axons. 11. The term, which means crossing over, is ..... A) Fasciculus. B) Commissure. C) Decussation. D) Degeneration. Show Answer Correct Answer: C) Decussation. 12. Type of neuron that carries messages from the brain/spinal cord to the body A) Sensory. B) Motor. Show Answer Correct Answer: B) Motor. 13. Which disease is an overproduction of cerebral spinal fluid? A) Spina bifida. B) Hydrocephalus. C) Multiple sclerosis. D) Parkinson's. Show Answer Correct Answer: B) Hydrocephalus. 14. Select the term that does not belong in the group A) Nodes of Ranvier. B) Myelin Sheath. C) Auricle. D) Dendrite. Show Answer Correct Answer: C) Auricle. 15. The nervous system gathers info from inside and outside the body. A) True. B) False. Show Answer Correct Answer: A) True. 16. Too much of this neurotransmitter can cause severe muscle spasms and even death A) Serotonin. B) Endorphins. C) Acetylcholine. D) GABA. Show Answer Correct Answer: C) Acetylcholine. 17. Which structure in humans transmit electrical messages? A) Veins. B) Lymphocytes. C) Neurons. D) Nephrons. Show Answer Correct Answer: C) Neurons. 18. The threshold of the stimulus A) If a stimulus is below its minimum threshold level nothing will happen. B) This state exists when a neuron is not carrying an impulse but prepared. C) A neuron cant conduct an impulse. a neuron will always conduct an impulse totally or not at all. D) None of above. Show Answer Correct Answer: A) If a stimulus is below its minimum threshold level nothing will happen. 19. What is the membrane that protects the brain and spinal cord? A) Meninges. B) Cerebrospinal fluid. C) Neuron. D) Myelin sheath. Show Answer Correct Answer: A) Meninges. 20. ..... is the liquid present inside our eye. A) Aqueous humor. B) Iris. C) Pupil. D) Egg. Show Answer Correct Answer: A) Aqueous humor. ← 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