PSY 1012 Lecture Notes - Lecture 1: Limbic System, Lateral Sulcus, Brainstem

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27 Apr 2016
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Within an estimate of, give or take 10 billion cells, the number of neural cells in the brain can
be estimated accurately.
a. FALSE
2. +Which of the following is NOT considered to be one of the major functions of the brain?
a. THINKING
3. +The CNS is comprised of the:
a. BRAIN AND SPINAL CORD
4. Which of the following is NOT part of the three main divisions of the brain?
a. MIDBRAIN
5. +The cerebral hemispheres are most closely identified as:
a. THE LEFT AND RIGHT SIDES OF THE BRAIN
6. Which of the following answers has nothing to do with the blood brain barrier?
a. CEREBRAL CORTEX
7. +Which of the following is myelinated brain matter?
a. WHITE MATTER
8. +Myelin is the same thing as _____.
a. GLIA
9. +Although there are exceptions, synaptic connections are most likely between:
a. AXON TO DENDRITE
10. +Which part of the neuron sends axon potentials to other cells?
a. AXON
11. +Neurons are the basic building blocks of the nervous system.
a. TRUE
12. +This section of the cell houses the nucle
a. SOMA
13. +How many chromosomes do humans have?
a. 46
14. +Which of the following bring information into a cell?
a. DENDRITE
15. +Which of the following send information away to other cells?
a. AXON
16. +The gap between cells is called:
a. SYNAPSE
17. Chemical messengers released from the presynaptic (axonic) terminal.
a. NEUROTRANSMITTERS
18. What is the name for the part of a neuron in which the action potential is converted to a
chemical signal?
a. TERMINAL BUTTON
19. Which of the following helps make action potentials move more quickly through a neuron?
a. MYELIN SHEATH
b.
Which of the following is true about action potentials? Action potentials are:
c. CREATED BY CHANGING A VOLTAGE ACROSS A PERMEABLE MEMBRANE
20. The main role of the dendrite is to:
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a. BRING ELECTRICITY INTO A NEURON
21. The all-or-none law states that:
a. EACH ACTION POTENTIAL FROM A PARTICULAR CELL HAS THE SAME STRENGTH AND
SPEED
22. What happens to vesicles when a cell fires?
a. THEY MERGE WITH THE CELL WALL
23. All nervous system activity has two basic components. What are they?
a. SENSORY INPUT AND MOTOR OUTPUT
24. Most of the cells inside the brain are classified as:
a. INTERNERONS
25. Sensory input and motor output generally follow which type of pathway?
a. POINT-TO-POINT CONNECTIONS
26. Brain plasticity refers to
a. THE ABILITY OF THE BRAIN TO MODIFY ITSELF
27. Which are the two main branches of the nervous system?
a. THE CENTRAL NERVOUS SYSTEM AND THE PERIPHERAL NERVOUS SYSTEM
28. Drugs can influence your behavior because they have similar molecular shapes to naturally
occurring substances in your brain.
a. TRUE
29. Which of the following is not a typical neurotransmitter system used to understand
psychological processes?
a. STEROIDS
30. Which of the following is the resting state of a neuron?
a. -70 mV
31. Which of the following voltages reflects an active action potential?
a. +40 mV
32. Which of the following ions crosses the cell membrane first an initiates the action potential?
a. Na+
33. Relative to the inside of the neural cell, the outside of the cell is charged:
a. POSITIVELY
34. All nervous system activity has two basic components. What are they?
a. SENSORY INPUT AND MOTOR OUTPUT
35. Which of the following send action potentials toward the brain?
a. SENSORY NEURONS
36. Which of the following send action potentials away the brain?
a. MOTOR NEURONS
37. Which of the following is a presynaptic neuron?
a. AXON
38. Which of the following is a postsynaptic neuron?
a. DENDRITE
39. Neurotransmitters transfer information from one neuron to another. In general, where do
they perform this function?
a. SYNAPTIC CLEFT
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40. Where are neurotransmitter receptors located?
a. DENDRITE
41. After neurotransmitters contact their receptors they go through the process of:
a. REUPTAKE
42. The venom of the black widow spider is to ________ as botulin is to ________.
a. CONVULSIONS; PARALYSIS
43. There are naturally occurring morphine-like and THC-like substances in your brain.
a. TRUE
44. There are naturally occurring morphine-like and THC-like substances in your brain.
a. INTERNEURONS
45. The hand withdrawal reflex elicited by exposure to a hot stimulus to your fingertips does NOT
require any connection to the brain.
a. TRUE
46. The hand withdrawal reflex elicited by exposure to a hot stimulus to your fingertips can be
modified by its connection to the bra
47.
48. Neurotransmitters that affect their receptors can do so in which of the following ways? By
producing:
a. EXCITATORY OR INHIBITORY EFFECTS
49. The effects of a drug are generally:
a. SPECIFIC TO ONE NEUROTRANSMITTER
50. Which of the following is a drug unlikely to do?
a. CHANGE THE CHEMICAL STRUCTURE OF A NEUROTRANSMITTER
51. Drugs might mimic the effect of a neurotransmitter because:
a. THE DRUG HAS SIMILAR STRUCTURE AS THE NEUROTRANSMITTER
52. If a drug blocks the reuptake of an EXCITATORY neurotransmitter then:
a. THE RESPONSE SYSTEM WILL INCREASE IN ACTIVITY
53. If a drug blocks the reuptake of an INHIBITORY neurotransmitter then:
a. THE RESPONSE SYSTEM WILL DECREASE IN ACTIVITY
54. The place that acetylcholine is primarily associated with is the:
a. NEUROMUSCULAR JUNCTIONS
55. Botulinum toxin and Black Widow spider venom both influence which of the following
systems?
a. NEUROMUSCULAR JUNCTIONS
56. Which of the following substances does NOT work at the neuromuscular juCAFFEINE
57. Which of the following substances is most closely related to adrenalin?
a. EPINEPHRINE
58. Which of the following researchers developed the experimental ablation technique?
a. FLOURENS
59. Which of the following researchers did clinical studies on people with head injuries and
stroke?
a. BROCA
60. The central nervous system is made up of the:
a. BRAIN AND SPINAL CORD
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