Ryerson University

PSY 105

Chapter 3

1)Which of the following is the part of the neuron that carries information toward other neurons?

1. 1. Dendrites
   2. Axon
   3. Ganglia
   4. Cell body
   5. Myelin sheath

2. A neuron’s resting potential is                   mV, reflecting the higher concentration of

                 ions outside the cell.

1. 1. –70; chloride
   2. –70; sodium

c. +50; chloride

d. +50; sodium

e. None of the above

3. The resting potential is maintained through:
   1. The calcium-potassium pumps
   2. The sodium-potassium pumps
   3. The sodium-chlorine pumps
   4. The calcium-choline pumps
   5. Both a and c

4. What is the main function of myelin?
   1. To help axons grow dendrites
   2. To insulate axons to regulate temperature
   3. To insulate dendrites from being damaged
   4. To insulate axons so that information can travel faster
   5. None of the above

5. The left and right hemispheres of the brain are connected by a bundle of fibres called the          .
   1. Corpus callosum
   2. Corpus cerebellum
   3. Hippocampus
   4. Central sulcus
   5. Striatum

6. What area in the temporal lobe is associated with language comprehension?
   1. Lateral sulcus
   2. Broca’s area
   3. Prefrontal cortex
   4. Wernicke’s area
   5. Association cortex

7. Izzy’s pupils are dilated and her heart is pounding; her breathing is shallow and rapid. Her           nervous system is active.
   1. Somatic
   2. Parasympathetic
   3. Autosympathetic
   4. Sympathetic
   5. Central

8. Which inherited condition results in the death of neurons in the striatum?
   1. Huntington’s disease
   2. Korsakoff’s syndrome
   3. Down’s syndrome
   4. Parkinson’s disease
   5. Alzheimer’s disease

9. Nanette is right-handed. Oscar is left-handed. Which of the following hypotheses is most tenable regarding the location of Broca’s and Wernicke’s areas in these two individuals?
   1. Oscar is more likely to have Broca’s and Wernicke’s area located in the right hemisphere than is Nanette.
   2. Oscar is more likely to have Broca’s and Wernicke’s area located in the left hemisphere than is Nanette.
   3. Oscar is just as likely as Nanette to have Broca’s and Wernicke’s area located in the left hemisphere.
   4. Oscar is just as likely as Nanette to have Broca’s and Wernicke’s area located in the right hemisphere.
   5. Handedness does not allow one to predict the brain lateralization of language areas.

10. Which of the following statements is true about the visual system?
    1. Images from the left visual field will be processed by the left hemisphere
    2. Images from the right visual field will be processed by the left hemisphere
    3. Images that fall onto the left eye will be processed by the left hemisphere
    4. Images that fall onto the right eye will be processed by the left hemisphere
    5. Images from the left visual field will be processed by both hemispheres