This quiz works best with JavaScript enabled. Home > Science > Nervous System – Quiz 168 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nervous System Quiz 168 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the threshhold level to cause an action potential to occur? A) -70 mV. B) 70 mV. C) -55 mV. D) 50 mV. Show Answer Correct Answer: C) -55 mV. 2. Which of the following cells of the nervous system communicate with each other to pass a message? A) Microglia. B) Oligodendrocytes. C) Neurons. D) Schwann cells. Show Answer Correct Answer: C) Neurons. 3. Where can you find cell organelles? A) Cell body. B) Cell membrane. C) Cell wall. D) None of above. Show Answer Correct Answer: A) Cell body. 4. If you touch a candle, you have a A) Monosynaptic reflex. B) Polysynaptic reflex. Show Answer Correct Answer: B) Polysynaptic reflex. 5. Where will a doctor check for swollen lymph nodes in your body? (a) A) A in your neck. B) In your arm. C) In your feet. D) In your back. Show Answer Correct Answer: A) A in your neck. 6. Which external stimulus is detected by sensory receptors in the eye? A) Light. B) Pressure. C) Sound. D) Odor. Show Answer Correct Answer: A) Light. 7. The brain is made up of: A) Cerebrum, cerebellum, and brainstem. B) Voluntary and involuntary movements. C) Cytoplasma, nucleus and organelles. D) Dendrites and axons. Show Answer Correct Answer: A) Cerebrum, cerebellum, and brainstem. 8. What is the primary function of the endocrine system? A) To produce hormones that regulate body processes. B) To filter blood and remove waste products. C) To transport oxygen and nutrients to cells. D) To control movement and coordination. Show Answer Correct Answer: A) To produce hormones that regulate body processes. 9. The following are basal ganglia terms except which one? A) Caudate nucleus. B) Putamen. C) Hippocampus. D) Globus pallidus. Show Answer Correct Answer: C) Hippocampus. 10. Which organ connects the mouth and the stomach? A) Small intestine. B) Large Intestine. C) Esophagus. D) Liver. Show Answer Correct Answer: C) Esophagus. 11. Function of spinal cord A) Controls all voluntary actions of the body. B) To transmit impulses from the sensory organ through central nervous system to the effector to respond accordingly. C) Controls the reflex actions. D) None of above. Show Answer Correct Answer: C) Controls the reflex actions. 12. What are the two parts of the Central nervous system? A) Nerves and Neurotransmitters. B) Brain and Spinal Cord. C) Brain and Nerves. D) Spinal Cord and nerves. Show Answer Correct Answer: B) Brain and Spinal Cord. 13. Neuroglia which phagocytes invading pathogens and damaged tissues is A) Microglia. B) Astrocytes. C) Ependymal cells. D) Oligodendrocytes. Show Answer Correct Answer: A) Microglia. 14. Which is not one of the four major regions of the brain? A) Brain stem. B) Cerebellum. C) Cerebral hemispheres. D) Diencephalon. E) Peripheral nervous system. Show Answer Correct Answer: E) Peripheral nervous system. 15. What is the function of the astrocytes? A) Dispose of dead cells and bacteria. B) Provide cushioning for nerve cell body. C) Control what enters neuron through blood. D) Produce myelin sheath. Show Answer Correct Answer: C) Control what enters neuron through blood. 16. What is the contractile unit of a muscle? A) Sarcomere. B) Motor unit. C) Fascicle. D) Myofibril. Show Answer Correct Answer: A) Sarcomere. 17. A baby taking its first breath. A) Learned Behavior. B) Instinct. Show Answer Correct Answer: B) Instinct. 18. The body's message and control center. A) Nervous system. B) Brain. C) Neurons. D) Central nervous system. Show Answer Correct Answer: A) Nervous system. 19. Which of the following is NOT a primary taste sensation: A) Sweet. B) Salty. C) Pungent. D) Bitter. E) Sour. Show Answer Correct Answer: C) Pungent. 20. Choose the statement that is NOT TRUE. A) Sensory neurons have their cell bodies outside of the spinal cord. B) Motor neurons have their cell bodies inside of the spinal cord. C) Interneurons have their cell bodies outside of the spinal cord. D) A and B are both untrue. Show Answer Correct Answer: C) Interneurons have their cell bodies outside of the spinal cord. ← 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