Chapter 39

Student: _________________________________________________________

1. The structure of the spinal cord that carries motor impulses out is the: A. ventral rootB. dorsal rootC. dorsal root ganglionD. dorsal horn

2. Spinal nerves carry: A. motor informationB. sensory informationC. both motor and sensory information

3. The structure that functions to integrate sensory input from the eyes and joints with motor information concerning the movements of various muscles is the: A. cerebrumB. cerebellumC. brain stemD. diencephalon

4. An animal with a simple netlike nervous system is A. earthworm.B. cat.C. hydra.D. octopus.E. planarian.

5. An animal with a ladder-like nervous system is the A. earthworm.B. cat.C. hydra.D. octopus.E. planarian.

6. An animal with a brain and a single ventral solid nerve cord is the A. earthworm.B. cat.C. hydra.D. octopus.E. planarian.

7. An animal with a brain and a dorsal hollow nerve cord is the A. earthworm.B. cat.C. hydra.D. octopus.E. planarian.

8. The Greek root word for "circumference" underlies the term

A. neuron.B. cerebellum.C. central.D. cerebrum.E. peripheral.

9. Which statement is NOT true about the human nervous system? A. The somatic nervous system controls skeletal muscles.B. The autonomic nervous system controls the skin and joints.C. The central nervous system consists of the brain and spinal cord.D. The somatic nervous system is part of the peripheral nervous system.E. The autonomic nervous system controls glands and smooth muscles of the viscera.

10. The Greek root word meaning "nerve" underlies the term A. neuron.B. cerebellum.C. central.D. cerebrum.E. peripheral.

11. Which statement is NOT true about the cells of the nervous system? A. A neuron can have only one axon.B. A neuroglial cell supports or protects a neuron.C. There may be multiple dendrites on a single cell.D. A dendrite is a cytoplasmic extension of a neuron.E. A dendrite is the cell part that carries an electrical impulse away from the cell body.

12. We can define a nerve impulse as A. an electrical current that moves along one nerve cell as if it were a copper wire.B. a collection of sodium ions that start at the dendrite end and individually move all the way to eventually arrive at the brain.C. a change in sodium ion concentrations on the nerve cell membrane(a change that moves generally from dendrites to axon).D. a change in sodium ion concentrations on the nerve cell membrane(a change that moves generally from axon to dendrites).

13. The Greek root word for "tree" underlies the term A. axon.B. neuron.C. pons.D. dendrite.E. peripheral.

14. The Greek root word for "axis" underlies the term A. axon.B. neuron.C. pons.D. dendrite.E. myelin.

15. The Greek root word for "spinal cord" underlies the term A. axon.

B. neuron.C. pons.D. dendrite.E. myelin.

16. Dendrites A. carry impulses away from a cell body.B. are always myelinated.C. are found only in the CNS.D. are solely responsible for nervous conduction.E. carry impulses toward a cell body.

17. Use the following key. There is a trigeminal sensory nerve that lets you feel what is happening to your face, and there is a separate facial motor nerve that allows you to control the movements of each side of your face. Also consider that the routes for these two nerves are separate but converge at the same general "facial" region in the brain.You have no facial control but feeling is present (known as Bell palsy). A. blocks at "facial" area of brainB. blocks facial nerveC. blocks trigeminal nerveD. no block

18. Use the following key. There is a trigeminal sensory nerve that lets you feel what is happening to your face, and there is a separate facial motor nerve that allows you to control the movements of each side of your face. Also consider that the routes for these two nerves are separate but converge at the same general "facial" region in the brain.You can neither feel one-half of your face nor control its movement; the physician is concerned about possible stroke or brain tumor. A. blocks at "facial" area of brainB. blocks facial nerveC. blocks trigeminal nerveD. no block

19. The inside of the neuron membrane at rest is A. negatively charged.B. positively charged.C. neutral, or equal to the exterior charge.D. None of the choices are correct, since neurons are never at rest.

20. How fast a person can type or play the piano keys depends upon the ultimate limitation to the number of nerve impulses she or he can send to a muscle per second. This is determined by A. primarily the type of muscle.B. whether the signal is pain, sound, motor, etc.C. the magnitude or strength of the nerve signal.D. the number of neurons and synapses involved.E. the speed with which sodium ions can be pumped back outside the neuron membrane.

21. Which statement is NOT true about the neuron cell membrane? A. The resting potential of a typical neuron is -70 mV within the neuron.B. There is a difference in electrical potential between the sides of the cell membrane.C. There is a voltage difference between the inside and the outside of the cell membrane.

D. The resting potential is the difference in electrical potential between the sides of the cell membrane when the cell is at rest.E. The action potential is a rapid change in the electrical potential, making it more negative inside the cell than it was before.

22. In the axon, the nerve impulses travel A. toward the cell body.B. away from the cell body.C. in both directions.D. away from the synapse.

23. Which is NOT a correct association of structure and function? A. axons--outgoing signalsB. sensory neuron--delivers signals to control sensory organs such as eye movementC. cell body--nucleus and organellesD. dendrites--incoming signalsE. interneuron—conveys signals to other parts of the CNS

24. Which statement is NOT true about the cells of the nervous system? A. Sensory neurons are unipolar with one short axon.B. Motor neurons have one axon and many short dendrites.C. Sensory neurons carry information toward the central nervous system.D. Motor neurons carry information from the central nervous system to the effector organs.E. Interneurons are found in both the peripheral nervous system and the central nervous system.

25. When a finger or other appendage is severed in an accident, it is possible to surgically rejoin most tissues (bone, skin, etc.) and most will grow back together. However, in a cut through an appendage nerve, it is currently very difficult to reconnect what are primarily severed A. axons.B. synapses.C. cell bodies.D. dendrites.E. interneurons.

26. Which statement is NOT true about the development of an action potential? A. It can be produced by an electric shock or a sudden pH change.B. There is a rapid change in polarity from about -70 mV to about +40 mV.C. The action potential ends when the polarity across the membrane reaches +40 mV.D. Depolarization occurs when sodium gates open and allow sodium ions to enter the cell.E. Potassium gates open after the sodium gates and allow potassium ions to leave the cell.

27. Which statement is NOT true about the action potential of the neuron? A. Large fibers in neurons of some invertebrates carry very rapid nerve impulses.B. The action potential travels the length of the axon in a self-propagating fashion.C. Repolarization occurs as movement of potassium ions occurs across the cell membrane.D. The action potential moves more slowly along a myelinated nerve fiber than along one with no myelin sheath.E. Saltatory conduction occurs from one neurilemmal node to another along a myelinated neuron.

28. What keeps a nerve impulse from flowing "backward" in a neuron? A. The synapse receptors form a one-way gate.B. The sodium ions can only move toward a synapse.

C. The neurolemmocytes keep impulses flowing in only one direction.D. The axon and dendrite have completely different membrane structures.E. All of the choices are correct.

29. The connection space between the dendrite of one cell and the axon of another cell is called A. a synapse.B. a neurotransmitter.C. an axonic connection.D. a threshold.

30. The Latin root word for "hopper" underlies the term A. axon.B. neuron.C. pons.D. dendrite.E. saltatory.

31. At a synapse, A. synaptic vesicles fuse with the postsynaptic membrane.B. synaptic vesicles fuse with the pre-synaptic membrane.C. neurotransmitters diffuse across the synaptic cleft.D. neurotransmitters are actively transported across the synaptic cleft.E. synaptic vesicles fuse with the pre-synaptic membrane, and neurotransmitters diffuse across the synaptic cleft.

32. The summing up of excitatory and inhibitory signals in a neuron is called A. repolarization.B. inhibition.C. synapse.D. integration.E. sympathetic response.

33. The likely effect on a neuron of two excitatory signals and twenty inhibitory signals is A. transmission of a nerve impulse.B. transmission of a nerve impulse releasing inhibitory neurotransmitters at the next synapse.C. prohibiting the axon from firing at all.D. confused integration.

34. The enzyme that breaks down acetylcholine within the synaptic cleft is A. acetylcholinesterase.B. monoamine oxidase.C. GABA.D. lipase.E. maltase.

35. In dissection, most nerve fibers appear gray to white because A. the neuron is gray to white colored.B. sodium ions are part of the salt compound and they flow along the surface.C. they rapidly die and dead tissues soon become gray or white.D. it is mostly myelin sheath made of lipid or fat molecules.E. they consume large amounts of energy in the form of sugar.

36. Which of the following structures does NOT pertain to neurons? A. neurolemmocytesB. Schwann cellsC. myelinD. neurofibril nodes (of Ranvier)E. glomerulus

37. Which of the following is NOT true about the myelin sheath? A. It is composed of layers of cellular membrane containing myelin around nerve fibers.B. It gives nerve fibers their white glistening appearance.C. It is surrounded by the neurilemma.D. It decreases the speed of nerve impulse conduction.E. It is formed from Schwann cells.

38. The sodium/potassium pump is primarily responsible for the A. resting potential.B. action potential.C. excretion of salts.D. contraction of muscle fibers.E. maintaining isotonic water balance.

39. A nerve impulse is A. movement of a sodium ion all the way from dendrite to axon tip.B. movement of a potassium ion all the way from dendrite to axon tip.C. movement of an electron all the way from dendrite to axon tip.D. a change in the difference in positive and negative ions on the outer and inner surfaces of the neuron membrane, a change that opens adjacent channels and propagates its flow.E. a change in the difference in sugar molecules on the outer and inner surfaces of the neuron membrane that opens adjacent channels.

40. The difference between a weak stimulus and an intense stimulus is A. the action potential is gradated and a weak stimulus causes a small change in polarity.B. weak stimuli only open sodium gates, strong stimuli also open potassium gates.C. the axon fires at a greater frequency.D. a strong stimulus does not allow repolarization but sends a constant flow of ions.E. All of the choices are correct.

41. Generally, nerve impulses do not move "backward" along a series of neurons. Which is NOT a correct reason? A. There is a short refractory period during which sodium gates cannot open and an action potential cannot move backwards.B. Sensory organs are at the dendrite end of neurons.C. At the synapse, the pre-synaptic membrane releases transmitter and the post-synaptic membrane has receptors.D. Sodium and potassium gates are one- directional and cannot open in the direction toward the dendrites.

42. Neurotransmitters are molecules that cross the synaptic cleft and A. always inhibit the postsynaptic neuron.B. always excite the postsynaptic neuron.C. either excite or inhibit the postsynaptic neuron.D. integrate the pre-synaptic action potential.E. are carried along the membrane surface of the next neuron.

43. Transmission of a nerve impulse from one neuron to another neuron is NOT dependent on A. the presence of calcium ions.B. a neurotransmitter substance.C. a synaptic cleft.D. a pre-synaptic and postsynaptic membrane.E. a depolarization and repolarization wave.

44. You spray an insect with a common insecticide that destroys the ability of acetylcholinesterase to recycle acetylcholine. What then happens? A. This kills the neuron directly.B. The lack of recycled acetylcholine brings cell metabolism to a halt.C. The insect loses control of body functions as nerve impulses flow continuously.D. This prevents the synapse from restoring its ability to "reset" itself for the next impulse.E. The synapse is prevented from restoring its ability to "reset" itself for the next impulse, therefore, the insect loses control of body functions due to a continuous flow of impulses.

45. Carpal tunnel syndrome is due to damage to one nerve and results in lack of control to the wrist and also numbness. This indicates that the A. nerve contained sensory neurons.B. nerve contained motor neurons.C. nerve contained both sensory and motor neurons.D. damage was to a central body in a ganglion.E. damage was to the spinal cord interneuron.

46. The peripheral nervous system consists of the A. nerves.B. ganglia.C. nerves and ganglia.D. brain and spinal cord.E. brain, spinal cord, and nerves.

47. Which statement is NOT correct about the peripheral nervous system? A. The nerves contain the cell bodies of the neurons.B. The nerves contain nerve fibers consisting of axons and dendrites.C. The somatic nervous system sends motor impulses to the skeletal muscles.D. Effectors include the muscles that carry out the instructions sent from the central nervous system.E. Receptors are stimulated by changes in the environment to send an electrical impulse toward the central nervous system.

48. When the dorsal root of a spinal nerve is cut, A. the organism is killed.B. incoming sensory nerve impulses are lost.C. outgoing motor nerve impulses are lost.D. impulses do not cross over to the other side of the body.

49. Spinal nerves contain A. only sensory fibers.B. only motor fibers.C. both sensory and motor fibers.D. only parasympathetic fibers.E. only interneurons forming ganglia.

50. The primary functions of the spinal cord involve A. intelligence and memory.B. speech, taste, smell, vision, hearing.C. reflex actions and communication between the brain and spinal nerves.D. controlling muscle activity and maintaining balance.E. local control and decision-making for local anatomy.

51. A nerve is A. a neuron.B. composed of sensory axons and motor dendrites.C. composed of the long fibers of long axons.D. a part of the central nervous system.E. any cell located in the brain or spinal region.

52. A reflex action A. is an automatic, involuntary response.B. does not require the central nervous system.C. is normally controlled consciously.D. has no protective value.E. is only found in humans.

53. Which statement is NOT true about the autonomic nervous system? A. The autonomic nervous system is a completely motor system.B. The sympathetic nervous system deals with "fight-or-flight" responses.C. The functions of the autonomic system are generally involuntary and subconscious.D. The parasympathetic nervous system promotes actions associated with relaxation.E. The neurotransmitter associated with the parasympathetic system is norepinephrine.

54. For the most part it is proper to associate the A. sympathetic nervous system with acetylcholine and emergencies.B. parasympathetic nervous system with norepinephrine and emergencies.C. sympathetic nervous system with norepinephrine and emergencies.D. parasympathetic system with acetylcholine and emergencies.E. sympathetic nervous system with feelings of compassion and sympathy.

55. There are two major groups of nervous system drugs. Drugs in one group retard heartbeat, promote digestion, contract the eye pupil, etc. The other drugs have the opposite effect. These drugs are affecting the A. motor and sensory nerves.B. cerebrum and cerebellum, respectively.C. central and peripheral nervous systems.D. neurostimulatory and neuroinhibitory synapses.E. sympathetic and parasympathetic nervous systems.

56. Administration of norepinephrine would A. dilate the bronchi and increase oxygen for blood.B. slow heartbeat.C. stimulate the digestive system to supply more sugar to the blood.D. cause the pupil of the eye to contract.E. promote an overall relaxed state.

57. Which of these is NOT true of the autonomic nervous system?

A. It controls heartbeat, peristalsis, and secretion of glands.B. It is composed of sympathetic and parasympathetic systems.C. It is composed only of fibers that have an inhibitory function on various organs of the body.D. The impulses require two motor neurons to reach their destination.E. The system coordinates organ responses.

58. The preganglionic fibers of the sympathetic nervous system A. arise from the thoracic-lumbar portion of the spinal cord.B. arise from the craniosacral portion of the spinal cord.C. terminate in ganglia far away from the spinal cord.D. have a long length.E. are the brain's main source of feelings of compassion for others.

59. Which of the following is NOT true about the autonomic nervous system? A. It uses two motor neurons and one ganglion for each impulse.B. It uses preganglionic and postganglionic axons.C. It is a part of the peripheral nervous system.D. It functions automatically and consciously.E. It innervates all internal body organs.

60. Which of these pairs of phrases is mismatched? A. synaptic vesicles–neurotransmittersB. ganglia–cell bodies outside the CNSC. autonomic nervous system–mixed nervesD. nodes of Ranvier–unmyelinated regions of a nerve fiber.E. membrane potential–Na+ and K+

61. The Greek root word for "membranes covering the brain" underlies the term A. medulla oblongata.B. meninges.C. reticular formation.D. diencephalon.E. thalamus.

62. Which of these statements about the parts of the unconscious brain is NOT correct? A. The pons is the lowest part of the brain, just above the spinal cord.B. The thalamus relays sensory input from lower brain areas to the cerebrum.C. The cerebellum functions in muscle coordination, muscle tone, posture, and balance.D. The medulla oblongata has reflex centers for vomiting, coughing, sneezing, and swallowing.E. The hypothalamus is concerned with homeostasis and regulation of thirst, hunger, and blood pressure.

63. A fly will beat its wings if its feet are not touching the ground and will stop its wings when its feet touch the ground, even when its head has been cut off. This "decision" to fly has therefore been made by A. sensory nerves in the feet.B. interneurons in the ganglia.C. wing and foot motor nerves themselves.D. impulses previously sent from the severed nerves of the brain.

64. When you were young, you learned to walk and take steps by practice in the toddler stage. Today you can do this without having to think through "lift heel-lift toe-move leg-set down heel-set down toe" because the sequence has been coordinated automatically in your A. autonomic nervous system.

B. sympathetic nervous system.C. brain stem.D. cerebellum.E. cerebral cortex.

65. Which of these statements about the conscious brain is NOT true? A. The conscious brain is contained entirely within the cerebrum.B. The corpus callosum is the bridge that connects the two cerebral hemispheres.C. The cerebral cortex is composed of gray matter, with cell bodies and unmyelinated fibers.D. The limbic system, which governs emotional behavior, is completely within the cerebrum.E. Association areas of each lobe of the cerebrum receive information from other parts of the brain and integrate the information into higher levels of consciousness.

66. Which statement about brain function is NOT true? A. Learning and memory are associated with the function of the limbic system.B. Intelligence and reason are associated only with the cerebrum.C. The cerebral cortex consists of white matter on the surface.D. Excitatory and inhibitory neurotransmitters are found in the brain.E. Endorphins in the brain produce a feeling of elation and interfere with pain production.

67. Which lobe of the cerebrum is associated with vision? A. occipitalB. frontalC. temporalD. parietal

68. The ____ of the brain receive(s) information from other lobes and integrates it into higher, more complex levels of consciousness. A. gangliaB. medullaC. corpus callosumD. association areasE. occipital lobe

69. Older people can remember where they were when they heard President Kennedy was assassinated; younger persons recall hearing about the Challenger explosion. This flash memory is most likely connected with the A. amygdala.B. prefrontal area.C. left hemisphere.D. primary somatosensory area.E. Wernicke's area.

70. Memory is closely associated with A. long-term potentiation.B. the hippocampus.C. sensory association areas in cerebral cortex.D. the amygdala.E. All of the choices are correct.

71. Which is NOT a correct association of memory type? A. skill memory–ability to perform motor activitiesB. long-term memory–telephone number you "know by heart"

C. short-term memory–brief or temporary recall for a few minutesD. semantic memory–non-language memoryE. episodic memory–persons or events

72. Language is associated with A. Broca's area.B. meninges.C. ventricles.D. the amygdala.E. the limbic system.

73. The ____ of the brain are interconnecting spaces that produce and serve as a reservoir for cerebrospinal fluid. A. meningesB. ventriclesC. corpus callosumD. insulaE. ganglia

74. The membranes that protect the brain and spinal cord are called A. cerebrospinal membranes.B. meninges.C. ventricles.D. epithelium.E. gray matter.

75. An impulse traveling up the spinal cord first enters the brain at the A. medulla.B. thalamus.C. hypothalamus.D. cerebellum.E. cerebrum.

76. Which is NOT a correct association of brain structures and functions? A. midbrain–reflex centers for visual, auditory, and tactile responsesB. cerebellum–coordinates smooth and coordinated motionsC. cerebrum–higher thought processes including learning, memory, and speechD. pons–regulates breathing rateE. thalamus–regulates heartbeat and blood pressure

77. Which of the following is NOT true about the cerebrum? A. It is the largest part of the human brain.B. The gray matter is outermost.C. It consists of four lobes.D. The two cerebral hemispheres are connected by the corpus callosum.E. Association areas integrate information from different lobes.

78. Which lobe of the cerebrum is responsible for vision? A. frontalB. parietalC. temporalD. occipital

E. insular

79. Which part of the brain is used to sort out only those stimuli that require immediate attention? A. hypothalamusB. cerebellumC. reticular activating systemD. limbic systemE. basal nuclei

80. When individuals experience pain and pleasure, the ____ has been stimulated. A. hypothalamusB. ponsC. reticular activating systemD. limbic systemE. thalamus

81. Consciousness is best associated with A. the whole brain.B. the frontal lobe only.C. the cerebrum.D. the whole central nervous system.E. the cerebellum.

82. Which part of the brain contains centers for the heartbeat and respiration? A. medulla oblongataB. hypothalamusC. cerebellumD. cerebrumE. pons

83. Excitotoxicity is A. due to action of glutamate neurotransmitter.B. caused by calcium rushing in too fast due to a malformed receptor.C. a side effect of long-term potentiation essential to memory.D. a possible cause of Alzheimer disease.E. All of the choices are correct.

84. Endorphins and heroin bind to receptors on neurons that travel from the spinal cord to the region of the brain that feels pleasure; this region is the A. hypothalamus.B. frontal lobe.C. limbic system.D. occipital lobe.E. third ventricle.

85. Of the following which does not have a true nervous system? A. arthropodsB. mollusksC. planariansD. annelids

86. Information gathering from the environment by a vertebrate is aided by which of the following?

A. paired eyes, ears, and olfactory structuresB. cephalizationC. bilateral symmetry with a vast increase in the number of neuronsD. all of the choices are information gathering aids

87. Which of the following characterizes the function of the human nervous system? A. It receives sensory input.B. It performs integration.C. It generates motor output.D. All of the choices characterize the human nervous system function.

88. A neurolemmocyte A. forms the white myelin sheath in the pNS.B. is a Schwann cell.C. leaves gaps called neurofibril nodes.D. All of the choices characterize a neurolemmocyte.

89. Drugs such as nicotine, alcohol, or marijuana affect the nervous system by A. interfering with or potentiating the action of neurotransmitters.B. enhancing or blocking the release of a neurotransmitter.C. minimizing the action of a neurotransmitter or blocking the receptors.D. All of the choices are effects of drugs.

90. Memory is the ability to hold a thought in the mind or recall events from the past. Which of the following is/are mis-matched? A. prefrontal area in the frontal lobe–short term memoryB. semantic memory–numbers or wordsC. episodic memory–ability to perform motor activities such as riding a bike.D. None of the choices are mis-matched.

91. Why is nicotine so addictive? A. it increases heart rate and blood pressure.B. it causes neurons to release dopamine that is associated with behavioral states and has a reinforcing effect that leads to drug dependency.C. it increases skeletal muscle activity leading to weight loss.D. it causes the kidneys to retain water.

92. The amygdala triggers associations between fear and sensory information. True False

93. The inner area of the spinal cord contains myelinated axons. True False

94. The nervous system provides a more rapid form of communication for control of body response to stimuli, whereas the endocrine system reacts more slowly and over a longer period of time. True False

95. The nerve impulse is produced by the movement of electrons along the nerve fiber from one end to the other. True False

96. The sodium-potassium pump is the mechanism that restores the resting potential after a nerve impulse.

True False

97. The action potential is propagated along the length of the axon as the neuron fires. True False

98. The pre-synaptic neuron is the one with its dendrites involved in the formation of the synapse. True False

99. The somatic nervous system serves to control the internal organs of the body. True False

100. There are twelve pairs of cranial nerves and thirty-one pairs of spinal nerves in the human nervous system. True False

101. Preganglionic fibers of both the sympathetic and parasympathetic nervous systems are short and terminate in ganglia close to the spinal cord. True False

102. The parasympathetic nervous system is made up of preganglionic fibers that originate in the cranial nerves and in the sacral part of the spinal cord. True False

103. The complexity of the convolutions on the surface of the cerebrum increases from fish to mammals, with a very complex surface in the human brain. True False

104. The central relay station for sensory impulses in the brain is the thalamus. True False

105. The parasympathetic system is sometimes called the "housekeeper division." True False

106. Prolonged use of cocaine will lead to cirrhosis of the liver. True False

107. Marijuana used heavily can cause chronic intoxication recognized by hallucinations, anxiety, depression, and paranoid reactions. True False

108. The central nervous system consists of a brain and the spinal cord. True False

109. Motor neurons, sensory neurons, interneurons, and neurolemmocytes are types of neurons. True False

110. Compare and contrast the nervous systems of the following animals: hydra, planarian, earthworm, human. 111. Describe the structure of a neuron, with discussion of the functional actions of each part of the cell.

112. Describe the generation of an action potential and its resolution. 113. Compare the sympathetic and parasympathetic aspects of the autonomic nervous system. 114. One scientist has observed that you cannot understand an organism's nervous system just by studying a nerve cell impulse; a radio is more than a collection of wires, and an organism is more than impulses. Obviously, a radio has dials, an antenna, a speaker, and other parts. Briefly list the equivalent parts of a human system. 115. List the parts of the unconscious brain and give one function of each part. 116. List the lobes of the cerebrum and give one function of each lobe. 117. The various layers of brain tissue extend from a basal core that governs automatic responses to the outermost cerebral cortex that is most developed in humans. This has given support to biologists who point out that this is the expected evolutionary sequence. Explain how such a comparison of the human and reptilian brains supports evolution. 118. Describe the role of long-term potentiation in memory at the cellular level and also the "down side" of excitotoxicity. 119. Describe the limbic system and its actions and functions.

Chapter 39 KEY

1. A2. C3. B4. C5. E6. A7. B8. E9. B10. A11. E12. C13. D14. A15. E16. E17. B18. A19. A20. E21. E22. B23. B24. E25. A26. C27. D28. A29. A30. E31. E32. D33. C34. A35. D36. E37. D38. A39. D40. C41. A42. C43. E44. E45. C46. C47. A48. B49. C

50. C51. C52. A53. E54. C55. E56. A57. C58. A59. D60. C61. B62. A63. B64. D65. D66. C67. A68. D69. A70. E71. D72. A73. B74. B75. A76. E77. C78. D79. C80. D81. C82. A83. E84. C85. C86. D87. D88. D89. D90. C91. B92. TRUE93. FALSE94. TRUE95. FALSE96. TRUE97. TRUE98. FALSE99. FALSE100. TRUE101. FALSE

102. TRUE103. TRUE104. TRUE105. TRUE106. FALSE107. TRUE108. TRUE109. FALSE110. Answers will vary.111. Answers will vary.112. Answers will vary.113. Answers will vary.114. Answers will vary.115. Answers will vary.116. Answers will vary.117. Answers will vary.118. Answers will vary.119. Answers will vary.