2019-04-16 16:26:02

Exam 3–Part 1

1. The figure depicts the ____________, one of the simplest circuits in the nervous system. It regulates ___________

           .
  • biceptual reflex; balance
  • myotatic/stretch reflex; muscle length/position
  • optokinetic reflex; muscle strength
  • Cartesian reflex; skeletal-muscular activity

1. The figure depicts the ____________, one of the simplest circuits in the nervous system. It regulates ___________

           .
  • biceptual reflex; balance
  • myotatic/stretch reflex; muscle length/position
  • optokinetic reflex; muscle strength
  • Cartesian reflex; skeletal-muscular activity

2. This circuit has a/an ___________ branch in which stretch receptors in intrafusal muscle fibers ___________ the extrafusal muscle fibers from the antagonist muscle.

  • polysynaptic; inhibit
  • autonomic; inhibit
  • monosynaptic; excite
  • monosynaptic; inhibit

2. This circuit has a/an ___________ branch in which stretch receptors in intrafusal muscle fibers ___________ the extrafusal muscle fibers from the antagonist muscle.

  • polysynaptic; inhibit
  • autonomic; inhibit
  • monosynaptic; excite
  • monosynaptic; inhibit

3. Plutchik’s biological approach to emotion focuses on an emotion’s ___________ and ___________. .

  • subjective feelings; facial expressions
  • action tendencies (tendency to approach or avoid); valence (positive/negative)
  • intensity; subjective feelings
  • influence on reproduction; link to defense behavior

3. Plutchik’s biological approach to emotion focuses on an emotion’s ___________ and ___________. .

  • subjective feelings; facial expressions
  • action tendencies (tendency to approach or avoid); valence (positive/negative)
  • intensity; subjective feelings
  • influence on reproduction; link to defense behavior

4. The serotonin hypothesis of depression suggests that ___________.

  • lowered 5-HT levels are part of the disorder
  • increased 5-HT levels are part of the disorder
  • lower ACh levels exacerbate the disorder’s positive symptoms
  • higher DA levels are linked to the disorder’s positive symptoms

4. The serotonin hypothesis of depression suggests that ___________.

  • lowered 5-HT levels are part of the disorder
  • increased 5-HT levels are part of the disorder
  • lower ACh levels exacerbate the disorder’s positive symptoms
  • higher DA levels are linked to the disorder’s positive symptoms

5. The primary purpose of the extrafusal muscle fibers is to ___________.

  • Generate force
  • Inhibit the contraction of muscles
  • Sense tension/length
  • All of the above

5. The primary purpose of the extrafusal muscle fibers is to ___________.

  • Generate force
  • Inhibit the contraction of muscles
  • Sense tension/length
  • All of the above

6. Which of the following is true regarding fibers that link somatosensory receptors to the central nervous system?

6. Which of the following is true regarding fibers that link somatosensory receptors to the central nervous system?

7. All of the following are common treatments for bipolar disorder EXCEPT:

  • Lithium.
  • Anticonvulsants.
  • Antipsychotics.
  • Dopamine agonists.

7. All of the following are common treatments for bipolar disorder EXCEPT:

  • Lithium.
  • Anticonvulsants.
  • Antipsychotics.
  • Dopamine agonists.

8. One might be tempted to call the fingertips “the somatosensory fovea” for all of the following reasons EXCEPT:

  • Both the fingertips and the fovea have high receptor cell densities.
  • Both the fingertips and the fovea have high perceptual acuity.
  • Both the fingertips and the fovea activate small areas of the cerebral cortex.
  • The scanning movements of both the fingertips and the fovea are precisely controlled by the motor system.

  • Both the fingertips and the fovea have high receptor cell densities.
  • Both the fingertips and the fovea have high perceptual acuity.
  • Both the fingertips and the fovea activate small areas of the cerebral cortex.
  • The scanning movements of both the fingertips and the fovea are precisely controlled by the motor system.

9. Parkinson’s Disease involves the degeneration of ___________-releasing neurons in the ___________.

  • Acetylcholine; Thalamus
  • Dopamine; Substantia Nigra
  • Dopamine; Inferior Colliculus
  • Acetylcholine; Substantia Nigra

9. Parkinson’s Disease involves the degeneration of ___________-releasing neurons in the ___________.

  • Acetylcholine; Thalamus
  • Dopamine; Substantia Nigra
  • Dopamine; Inferior Colliculus
  • Acetylcholine; Substantia Nigra

10. The neurotransmitter ___________ is released by α motor neurons at the neuromuscular junction; this event leads to an ___________ within the muscle fiber and eventually, muscle fiber contraction.

  • Glutamate; EPSP
  • Acetylcholine; IPSP
  • Glutamate; IPSP
  • Acetylcholine; EPSP

10. The neurotransmitter ___________ is released by α motor neurons at the neuromuscular junction; this event leads to an ___________ within the muscle fiber and eventually, muscle fiber contraction.

  • Glutamate; EPSP
  • Acetylcholine; IPSP
  • Glutamate; IPSP
  • Acetylcholine; EPSP

11. Which of the following events must occur in order for neurotransmitter to be released from an axon’s presynaptic terminal?

  • Voltage-gated K+ channels must open to permit K+ to enter the cell.
  • Voltage-gated Ca++ channels must open to permit Ca++ to enter the cell.
  • Neurotransmitters must diffuse through the cytoplasm to the presynaptic membrane.
  • None of the above.

  • Voltage-gated K+ channels must open to permit K+ to enter the cell.
  • Voltage-gated Ca++ channels must open to permit Ca++ to enter the cell.
  • Neurotransmitters must diffuse through the cytoplasm to the presynaptic membrane.
  • None of the above.

12. The human cerebellum is ___________ the rest of the brain when comparing it to related animal groups.

12. The human cerebellum is ___________ the rest of the brain when comparing it to related animal groups.

  • Third Ventricle

  • Lateral Ventricle

  • Fourth Ventricle

16. Visual information from the ___________ projects to the suprachiasmatic nucleus (SCN) of the ___________. This is one way that light information influences circadian rhythms.

  • retina; hypothalamus
  • LGN; hippocampus
  • MGN; inferior colliculus
  • V1; thalamus

16. Visual information from the ___________ projects to the suprachiasmatic nucleus (SCN) of the ___________. This is one way that light information influences circadian rhythms.

  • retina; hypothalamus
  • LGN; hippocampus
  • MGN; inferior colliculus
  • V1; thalamus

17. Gilmore thinks that the retina is anatomically inside-out because ___________.

  • light rays pass through multiple retinal layers before activating photoreceptors
  • the dark current is only active in bright light
  • red lights interfere with the perception of green
  • light rays pass through photoreceptors before they activate retinal ganglion cells

17. Gilmore thinks that the retina is anatomically inside-out because ___________.

  • light rays pass through multiple retinal layers before activating photoreceptors
  • the dark current is only active in bright light
  • red lights interfere with the perception of green
  • light rays pass through photoreceptors before they activate retinal ganglion cells

18. Diffusion Tensor Imaging (DTI) is a/an ___________ MRI method that provides information about ___________.

  • functional; how neurotransmitters diffuse across the synaptic cleft
  • functional; the blood oxygen-level dependent (BOLD) response
  • structural; connectivity between brain areas
  • structural; the branching structure of neuronal dendrites

  • functional; how neurotransmitters diffuse across the synaptic cleft
  • functional; the blood oxygen-level dependent (BOLD) response
  • structural; connectivity between brain areas
  • structural; the branching structure of neuronal dendrites

19. Schizophrenia is characterized by which of the following brain abnormalities?

  • Increased size of ventricles.
  • Reduced hippocampal volume.
  • Accelerated gray matter loss.
  • All of the above.

19. Schizophrenia is characterized by which of the following brain abnormalities?

  • Increased size of ventricles.
  • Reduced hippocampal volume.
  • Accelerated gray matter loss.
  • All of the above.

20. Why might the dopamine (DA) hypothesis not provide a comprehensive explanation for schizophrenia?

  • Changes in DA levels have not been shown to disturb memory function.
  • The hypothesis cannot explain the strong developmental origins of the disease.
  • Some drugs increase DA levels but reduce schizophrenic symptoms.
  • DA antagonists only relieve the negative symptoms of schizophrenia.

  • Changes in DA levels have not been shown to disturb memory function.
  • The hypothesis cannot explain the strong developmental origins of the disease.
  • Some drugs increase DA levels but reduce schizophrenic symptoms.
  • DA antagonists only relieve the negative symptoms of schizophrenia.

21. More recent theories about schizophrenia point to a disturbance in ___________, one of the ___________ common neurotransmitters released in the CNS.

  • endorphins; least
  • norepinephrine; most
  • CO; least
  • glutamate; most

21. More recent theories about schizophrenia point to a disturbance in ___________, one of the ___________ common neurotransmitters released in the CNS.

  • endorphins; least
  • norepinephrine; most
  • CO; least
  • glutamate; most

22. Woody Guthrie and his mother died of ___________, a disease that targets the .

  • Parkinson’s Disease; basal ganglia
  • Parkinson’s Disease; cerebellum
  • Huntington’s Disease; basal ganglia
  • Huntington’s Disease; cerebellum

22. Woody Guthrie and his mother died of ___________, a disease that targets the .

  • Parkinson’s Disease; basal ganglia
  • Parkinson’s Disease; cerebellum
  • Huntington’s Disease; basal ganglia
  • Huntington’s Disease; cerebellum

23. Touch receptors enervating the skin on the ___________ have especially small receptive fields.

  • Face
  • Calf
  • Neck
  • Back

23. Touch receptors enervating the skin on the ___________ have especially small receptive fields.

  • Face
  • Calf
  • Neck
  • Back

24. Perceptual sensitivity is NOT related to which of the following?

24. Perceptual sensitivity is NOT related to which of the following?

25. In response to a typical environmental stressor, cortisol levels ___________.

  • involve activation of the SAM axis
  • rise, fall below baseline levels, then return
  • rise and stay elevated
  • rise then return to baseline levels after a short period

25. In response to a typical environmental stressor, cortisol levels ___________.

  • involve activation of the SAM axis
  • rise, fall below baseline levels, then return
  • rise and stay elevated
  • rise then return to baseline levels after a short period

26. Why can't we see (or imagine) a reddish green?

  • Red (long wavelength) and green (medium) wavelength photoreceptors have opposing effects on downstream cells
  • Red and green lights fall at opposite ends of the visible spectrum
  • Red and green lights overlap so much in wavelength that we can't tell them apart
  • No objects in nature reflect long and medium wavelengths

  • Red (long wavelength) and green (medium) wavelength photoreceptors have opposing effects on downstream cells
  • Red and green lights fall at opposite ends of the visible spectrum
  • Red and green lights overlap so much in wavelength that we can't tell them apart
  • No objects in nature reflect long and medium wavelengths

  • Location of the primary somatosensory cortex.

  • Location of the primary auditory cortex.

  • Location of the primary motor cortex.

  • Location of the primary visual cortex.

31. The uterus consists of ___________ muscle fibers that contract involuntarily in the presence of the hormone ___________.

  • Striated; cortisol
  • Striated; oxytocin
  • Smooth; oxytocin
  • Smooth; melatonin

31. The uterus consists of ___________ muscle fibers that contract involuntarily in the presence of the hormone ___________.

  • Striated; cortisol
  • Striated; oxytocin
  • Smooth; oxytocin
  • Smooth; melatonin

32. The ___________ of your smartphone is analogous to the pressure receptors in your skin.

  • accelerometer
  • cellular radio
  • touch screen
  • GPS transmitter

32. The ___________ of your smartphone is analogous to the pressure receptors in your skin.

  • accelerometer
  • cellular radio
  • touch screen
  • GPS transmitter

33. Cognitive behavior therapy is less successful than drugs in treating depression.

  • True.
  • False.

33. Cognitive behavior therapy is less successful than drugs in treating depression.

  • True.
  • False.

34. Milner and Olds discovered that electrical stimulation of the medial forebrain bundle connecting the ___________ and ___________ caused experimental animals to change their behavior in order to seek out ever more frequent stimulation.

  • ventral tegmental area; nucleus accumbens
  • hippocampus; amygdala
  • temporal cortex; striatum
  • hypothalamus; pituitary

  • ventral tegmental area; nucleus accumbens
  • hippocampus; amygdala
  • temporal cortex; striatum
  • hypothalamus; pituitary

35. Serotonin/Norepinephrine reuptake inhibitors (SNRIs) act on presynaptic ___________ and cause extracellular levels of these ___________ to be increased.

  • metabotropic receptors; hormones
  • ion pumps; amino acids
  • transporters; monoamines
  • Ionotropic receptors; indolamines

35. Serotonin/Norepinephrine reuptake inhibitors (SNRIs) act on presynaptic ___________ and cause extracellular levels of these ___________ to be increased.

  • metabotropic receptors; hormones
  • ion pumps; amino acids
  • transporters; monoamines
  • Ionotropic receptors; indolamines

36. Spicy foods can seem ‘hot’ even at room temperature because .

  • thermoreceptors in the skin don’t respond to temperature differences
  • thermoreceptors in the skin also respond to certain chemical substances
  • flavor involves the olfactory system and the gustatory system
  • receptive fields for temperature overlap with those for flavor

36. Spicy foods can seem ‘hot’ even at room temperature because .

  • thermoreceptors in the skin don’t respond to temperature differences
  • thermoreceptors in the skin also respond to certain chemical substances
  • flavor involves the olfactory system and the gustatory system
  • receptive fields for temperature overlap with those for flavor

37. Elephants have high levels of dexterity (fine motor control) in their trunks. Somatosensory neurons in the trunk region of the elephant‘s S1 are likely to have ___________.

  • Small receptive fields
  • Large receptive fields
  • Weak projections to corresponding regions of M1
  • Low levels of myelination

37. Elephants have high levels of dexterity (fine motor control) in their trunks. Somatosensory neurons in the trunk region of the elephant‘s S1 are likely to have ___________.

  • Small receptive fields
  • Large receptive fields
  • Weak projections to corresponding regions of M1
  • Low levels of myelination

38. Which of these is an effective treatment of Huntington’s Disease?

  • Dopamine Agonists
  • NMDA Agonists
  • Selective Serotonin Reuptake Inhibitors
  • None of the above

38. Which of these is an effective treatment of Huntington’s Disease?

  • Dopamine Agonists
  • NMDA Agonists
  • Selective Serotonin Reuptake Inhibitors
  • None of the above

39. A somatosensory neuron’s receptive field consists of ___________ .

  • the skin between cutaneous receptor dendrites
  • the region of the skin that influences the neuron’s firing when stimulated
  • all the inputs to the neuron’s dendrites and soma
  • its response pattern to ‘donut’-shaped inputs

39. A somatosensory neuron’s receptive field consists of ___________ .

  • the skin between cutaneous receptor dendrites
  • the region of the skin that influences the neuron’s firing when stimulated
  • all the inputs to the neuron’s dendrites and soma
  • its response pattern to ‘donut’-shaped inputs

40. Lesions of the ___________ block fear conditioning in experimental animals.

  • hippocampus
  • cerebral cortex
  • amygdala
  • striatum

40. Lesions of the ___________ block fear conditioning in experimental animals.

  • hippocampus
  • cerebral cortex
  • amygdala
  • striatum

Bonus

41. Which of these is NOT true about individuals with schizophrenia?

  • The genetic disposition for getting the disorder is just under 50% for monozygotic twins
  • About a third of them have a mild form that resolves.
  • They show decreased cortical thickness in adolescence.
  • They can exhibit delusional thoughts, hallucinations, mood issues, and behavioral abnormalities.

FREE POINT – ANSWERS UNCLEAR/MISLEADING

42. The projection from the ___________ to the ___________ is a major pathway in the brain’s ‘reward’ system.

  • Ventral tegmental area (VTA); nucleus accumbens/ventral striatum
  • Substantia nigra; striatum
  • Ventral tegmental area (VTA); amygdala
  • Hypothalamus; adrenal medulla

42. The projection from the ___________ to the ___________ is a major pathway in the brain’s ‘reward’ system.

  • Ventral tegmental area (VTA); nucleus accumbens/ventral striatum
  • Substantia nigra; striatum
  • Ventral tegmental area (VTA); amygdala
  • Hypothalamus; adrenal medulla

43. Increases in intracellular concentration of the ion ___________ trigger the contraction of muscle fibers.

  • K+.
  • Ca++.
  • ACh.
  • Cl-.

43. Increases in intracellular concentration of the ion ___________ trigger the contraction of muscle fibers.

  • K+.
  • Ca++.
  • ACh.
  • Cl-.

44. An acute stressor is one that ___________.

  • lasts only a short period of time
  • is especially intense and long-lived
  • rarely triggers the HPA axis
  • overstimulates cortisol receptors in the spinal cord

44. An acute stressor is one that ___________.

  • lasts only a short period of time
  • is especially intense and long-lived
  • rarely triggers the HPA axis
  • overstimulates cortisol receptors in the spinal cord