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Nervous System Quiz 231 (60 MCQs)

Quiz Instructions

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1. What system uses signals from the brain to provide movement for the human body?
2. We have..... sense organs.
3. Select the dendrites electrical signal
4. To transmit nerve impulses from one cell to another. This process is called synapse, from one nerve fiber to another nerve fiber of another cell.
5. Someone who is farsighted might .....
6. What is the role of efferent neurons?
7. They relax airways.
8. Ridge on surface of cerebrum
9. Messages carried throughout the body by nerves are called
10. Air travels through the ..... to the lungs.
11. What helps warn us and protect us?
12. With a reflex action, where is the impulse carried to be processed more quickly (to reduce the amount of damage to the body in a reflex arc)?
13. A threshold refers to
14. A sense organ has lots of .....
15. Which term defines near-sightedness
16. The involuntary actions of the internal organs of the body are controlled by the automatic system.
17. What are the deep grooves that separate the lobes of the brain called?
18. Controls heartbeat and breathing,
19. Nerve cells that relay impulses from sensory nerve cells to motor nerve cells
20. A patient has an injury to the ventral root of his spinal nerve at the lumbar level of his spinal cord. He will experience problems of
21. The minimum level of a stimulus that is required to activate a neuron
22. Cells with a supportive role in the nervous system.
23. Sac-like organelle that stores water, food, and other materials.
24. Which of the following is a part of the rhombencephalon?
25. External ..... are changes to conditions outside our body.
26. Rod-shaped organelles that convert energy in food molecules to energy the cell can use to carry out its functions
27. Hormones are made by the nervous system.
28. A patient is admitted after head injury the temperature is elevated the suggestive injury to the
29. The function of the spinal cord?
30. What structure of the inner ear is responsible for your sense of hearing?
31. If long-term potentiation is to occur between twoneurons, then
32. The ..... protect neurons from harmful substances in the blood.
33. Identify parts of the EYE (orange layer)
34. The part of the brain that controls balance and coordination is the .....
35. Definition:a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.
36. The joint with a rounded end of bone fitting snug within another bone.
37. What is the name of the thin layer of gray matter on the outermost layer of the cerebrum that contains 75% of the neurons in the nervous system?
38. Which of the following structures provides output from the basal ganglia?
39. Mechanoreceptors are sensitive to
40. This is the smallest part of the brain stem.
41. This part of the brain plans the muscle movements required for words, then sends the appropriate impulses to the primary motor cortex.
42. Repolarization begins with the opening of ..... channels.
43. Nicotine can penetrate the blood-brain barrier.
44. The cartilage of the outer ear is called
45. These are positively charged and have a higher concentration outside of a nerve cell at rest
46. The most serious injuries that can occur in the nervous system are:
47. The structural and the functional unit of the nervous system is the .....
48. What does the sympathetic nervous system do?
49. It is the movement of the deoxygenated blood from the heart and into the lungs
50. This causes a rise or drop in blood pressure and it sends impulses to blood vessels causing them to dilate or constrict.
51. These are types of blood cells:
52. Passing of urine at night
53. All our body parts depend on our brain, it called as .....
54. These are muscles that work without you thinking about what is happening. These happen automatically.
55. Neurons are composed of a network of fine threads called .....
56. Loss of power of motion or sensation
57. This system of nerve fibers carries impulses to glands, heart, blood vessels, involuntary muscles, and hollow organs
58. The process of receptor cells in the body telling the brain what it is experiencing, and the brain sends back a message telling the body how to react, take about
59. Which among the following is NOT a part of the Hind brain?
60. What is the fastest speed of nerve signal travel?
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