Exam 1 Test Q's

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1
Behavior neuroscience is the study of the human brain (and only the human brain).
  • True
  • False
2
Identify Parts of the Neuron
1. Dendrite, 2. Nucleus, 3. Soma, 4. Myelin, 5. Axon, 6. Axon Terminal
3
The cell membrane is made up of a lipid bilayer that:
  • requires lots of cellular energy to maintain
  • most ions can pass through
  • most ions must pass through
  • most ions cannot pass through
4
Without myelin, the action potential:
  • moves backwards
  • moves more quickly
  • can not happen
  • moves more slowly
5
The DNA and "instructions" for making all the proteins that the cell needs are found in the ___.
  • axon hillock
  • axon terminal
  • nucleus
  • dendrite
6
An action potential always moves from the ___ to the ___ of the neuron.
  • soma to the dendrite
  • axon terminal to the axon hillock
  • dendritic spine to the axon hillock
  • axon hillock to the axon terminal
7
The location on the cell where EPSPs can occur:
  • dendritic spine
  • dendrite
  • nucleus
  • all of these answers are correct
8
Location where the acrion potential "starts"
  • soma
  • axon hillock
  • synapse
  • axon terminal
9
The location on a cell where it is the postsynaptic connection
  • axon terminal
  • axon hillock
  • dendritic spine
  • soma
10
Before joining a study, Lea is given a handout explaining what the study will be about. However, teh instructions are written in Spanish, a language Lea does not know. Having Lea participate in the study anyways would violate which ethical principle?
  • voluntary withdrawal
  • all of these are correct
  • informed consent
  • minimize harm to participants
11
Which important historical contribution allowed researchers to see and study brain cells?
  • discovery of electrical potentials in frog legs
  • invention of Golgi staining
  • discovery of vagustuff in frog hearts
  • invention of EEG
12
Which of the following is correct, regarding animal research in the US
  • proposed studies are reviewed by an eithics committee
  • animal testing is required of all newly developed drugs
  • mice are the most common model used in animal research
  • all of these answers are correct
13
Eventually proven correct, Santiago Ramon y Cajal proposed the neuron doctrine, which suggested that brain cells ____?
  • were all interconnected in a reticulum (network)
  • were separated by small spaces
  • were only active about 10% of the time
  • were only found in humans
14
During the 1950s and 1960s, Sloan-Kettering Institute oncologist Chester Southam conducted research to lear how people's immune systemswould react when exposed to cancer cells. In order to find out, he injected live HeLa cancer cells into patients, generally without their permission. Failing to tell participants the aims of the study violates which eithical principles?
  • avoid deception and confidentiality
  • maximize harm and informed consent
  • informed consent and confidentiality
  • informed consent and avoid deception
15
These glial cells serve as the primary immune response in the brain and spinal cord, as they travel to sites of injury and infection and help clear damage through phagocytosis.__
  • astrocytes
  • satellite cells
  • oligodendrocytes
  • microglia
16
______ is the phase of the action potential when the inside of the cell moves from a negative charge to a positive one, mostly due to the movement of sodium ions.
  • hyperpolarization
  • repolarization
  • depolarization
  • threshold
17
______ is the phase of the action potential when the inside of the cell moves from positive charge to a negative one, mostly due to the movement of potassium ions
  • threshold
  • hyperpolarization
  • depolarization
  • repolarization
18
____ is the phase of the action potential when the inside of the cell becomes "extra" negatively charged, mostly due to the movement of potassium ions
  • repolarization
  • threshold
  • depolarization
  • hyperpolarization
19
The sodium potassium pumps...
  • all of these answers are correct
  • help the cell return to resting membrane potential after an action potential
  • help keep the inside of the cell polarized
  • move 3 sodium ions out of the cell for every 2 potassium ions they allow in
20
The sodium potassium pumps are important for...
  • maintaining resting membrane potential
  • hyperpolarizing the cell
  • preventing unwanted action potentials
  • creating EPSPs
21
Electrostatic pressure means that ___ charged ions will move towards the ___ charged extracellular space
  • negatively; negatively
  • positively; negatively
  • negatively; positively
  • positively; positively
22
Why does sodium enter the cell when the voltage gated sodium channels open?
  • chemical diffusion pressure acts on extracellular sodium ions
  • electrostatic pressure acts on extracellular sodium ions
  • all of these answers are correct
  • ion channels open, allowing sodium to pass the cell membrane
23
In order to enter the cell, most ions must:
  • pass through an ion channel
  • become depolarized
  • bind to voltage-gated receptors
  • pass through the cell membrane
24
Which scenario would be most liekly to lead to an action potential?
  • multiple EPSPs and IPSPs in a short period of time
  • multiple IPSPs in a short period of time
  • multiple EPSPs in a short period of time
  • multiple EPSPs and IPSPs in a small area
25
Mystery chemical A is produced in the neuron, stored in vesicles and released following an action potential. It crosses the synapse but has no effect on the postsynaptic cell. What can we conclude about "mystery chemical A"?
  • none of these are correct
  • it is a neuropeptide
  • it is a hormone
  • it is a neurotransmitter
26
Identify the receptor type: Dopamine binding leads to immediate opening of an ion channel:
  • metabotropic
  • ionotropic
27
Identify the receptor type: Activation of the receptor leads to the release of g-proteins inside the cell:
  • metabotropic
  • ionotropic
28
Identify the receptor type: Result of ions binding to this receptor type is slower
  • metabotropic
  • ionotropic
29
Identify the receptor type: GABA beinds to a receptor on an ion channel, binding opens that channel and potassium flows out
  • metabotropic
  • ionotropic
30
Why is it incorrect to say that a neurotransmitter is excitatory or inhibitory?
  • a neurotransmitter can have different effects in different parts of the body
  • the effects depend on the receptor the neurotransmitter binds to
  • a neurotransmitter may be both excitatory or inhibitory
  • all of these answers are correct
31
According to the classical definition, all neurotransmitters must:
  • all of these answers are correct
  • be made by mitochondria in the neuron
  • be cleared from the synapse by reuptake
  • be released as a result of a action potential
32
Which of the following glia are found in the peripheral nervous system?
  • astrocytes
  • none of these answers are correct
  • oligodendrocytes
  • microglia
33
The frontal lobe is located _____ to the occipital lobe.
  • anterior
  • distal
  • posterior
  • medial
34
Identify the missing step in the process of synaptic transmission: 1. Presynaptic cell depolarizes, voltage gated sodium channels open at the axon hillock, 2. Action potential reaches the axon terminal, 3. ____________, 4. Vesicles fuse to the membrane of the presynaptic cell and release neurotransmitter into the synapse.
  • Neurotransmitter is released into the synapse
  • Voltage gated sodium channels open
  • The synapse is cleared of all neurotransmitters, and the system "resets" until the next action potential
  • Neurotransmitters are taken from the synapse, into the presynaptic cell, via transporters
35
Match the effect to its description: A cell experiences a single EPSP at the same time as multiple IPSPs. Together the effect is...
  • inhibitory
  • excitatory
36
Match the effect to its description: Potassium (K+) ions leaving the cell...
  • inhibitory
  • excitatory
37
Match the effect to its description: Multiple EPSPs occurring over a short period of time...
  • inhibitory
  • excitatory
38
Match the effect to its description: Sodium potassium pumps push sodium (Na+) ions out of the cell
  • inhibitory
  • excitatory
39
The ___ is produced by ___ cells, and is helpful in protecting the brain and spinal cord from injury.
  • myelin; schwann cells
  • cerebral spinal fluid; ependymal
  • myelin; oligodendrocytes
  • cerebral spinal fluid; astrocytes
40
Broca, Fritsch, & Hitzig, Flourens and others observed specific behavioral effects following damage or stimulation of particular brain areas, providing evidence for...
  • electrophysiology
  • phrenology
  • neural specificity
  • ablation
41
Pablo Picasso, Rembrandt, & Monet were all artists famous for their creativity, skill, and artistic accomplishments. Based on their artistic abilities, we can conclude that each of the men were likely ____.
  • left brain dominant
  • right brain dominant
  • none of these answers are correct
  • frontal lobe dominant
42
Which of the following is an example of a ligand?
  • an action potential
  • the sodium potassium pump
  • none of these answers are correct
  • dopamine
43
The key difference between inhibitory postsynaptic potentials and excitatory postsynaptic potentials is the...
  • degree of effect
  • direction of membrane polarization
  • ease of elicitation
  • overal speed of activity
44
Neurotransmitter A is broken down by Enzyme B. If we administer a drug that increases the amount of Enzyme B in the synapse, what effect would you expect to see?
  • no effect on the activity of Neurotransmitter A
  • reduced activity of Neurotransmitter A on the presynaptic
  • reduced activity of Neurotransmitter A on the postsynaptic cell
  • increased activity of Neurotransmitter A on the postsynaptic cell
45
Why is resting membrane potential important?
  • it keeps the cell ready to reuptake neurotransmitters
  • it prevents the cell from firing an action potential
  • all of these are correct
  • it keeps the cell ready to fire an action potential
46
A drug that disrupts the part of the cell indicated by the #5 in this image would have what primary effect?
  • all of these answers are correct
  • prevent the binding of neurotransmitters
  • prevent storage of neurotransmitters
  • prevent production of neurotransmitters
47
Glutamate, GABA, and serotonin are all examples of ____ chemicals while cocaine, nicotine, caffeine are all ___.
  • endogenous; exogenous
  • hydrophilic; hydrophobic
  • exogenous; endogenous
  • good; bad
48
Which statement is true, regarding caffeine metabolism?ch
  • it is not influenced by hormones
  • it is not influenced by diet
  • none of these answers are correct
  • it is not influenced by age
49
The way a body ____ a drug can be affected by factors such as genetics, diet, and other drugsor
  • metabolizes
  • absorbs
  • all of these answers are correct
  • reacts to
50
Match the image to its function (brain picture)
1. Associated with thought, planning, cognition. 2. Hearing, language, and speech controlled here, 3. Connection between PNS and CNS, via spinal cord, 4. The "little" brain, controls movements like walking. 5. Visual processing area, 6. Areas where sensory and motor info are processed
51
The "medical model" views addiction as what?
  • a consequence of poor home environment
  • a disorder requiring treatment
  • the result of genetic predisposition
  • a moral failing
52
If the CONCENTRATION of sodium ions were the same both inside and outside the cell, the _______ pressure would be disrupted.
  • chemical diffusion
  • sodium potassium pump
  • electrostatic
  • all of these answers are correct
53
Multiple excitatory inputs over a short period of time may "add up" to cause the cell to reach threshold. This is known as:
  • inhibitory escalation
  • temporal summation
  • cellular escalation
  • spatial summation
54
______ help to facilitate action potentials in the brain and spinal cord.
  • oligodendrocytes
  • Schwann cells
  • satellite cells
  • astrocytes
55
_____ is a neuroimaging technique that uses x-rays to view brain structures
  • MRI
  • PET scan
  • fMRI
  • CT scan
56
A demyelinating disorder, like multiple sclerosis, has what effect on the body?
  • it damages myelin, slowing action potentials
  • it thicken myelin, slowing action potentials
  • it thicken myelin, speeding up action potentials
  • it damages myelin, speeding up action potentials
57
Match the effect to its description: Adenosine reduces glutamate release...
  • antagonist
  • agonist
58
Match the effect to its description: THC mimics the body's own production of anandamide...
  • antagonist
  • agonist
59
Match the effect to its description: LSD activates both serotonin receptors, leasing to both inhibitory and excitatory affects in the brain...
  • antagonist
  • agonist
60
Match the effect to its description: Selective serotonin reuptake inhibitors (SSRIs) prolong the effect of serotonin in the synapse
  • agonist
  • antagonist
61
After regularly consuming caffeine fo ryears, Trish Yearwood finds that a single cup of coffee only makes her feel more alert for a short period of time (when it used to affect her for hours). What aspect of the drug should she study to figure out why this is happening?
  • pharmacodistribution
  • pharmacodynamics
  • pharmacomimetics
  • pharmacokinetics
62
Some drugs, like guarana and nicotine, slow the _____ of caffeine causing the effects to last longer in the body
  • elimination
  • absorption
  • metabolism
  • distribution
63
A diet low in tryptophan would likely contribute to what?
  • all of these answers are correct
  • changes in sleep and mood
  • reduced serotonin production
  • reduced melatonin production
64
Metabotropic GPCRs (G-protein-coupled receptors) are activation _____ and cause signaling ____ the cell.
  • intracellularly; outside
  • extracellularly; inside
  • extracellularly; outside
  • intracellularly; inside
65
Two receptors may be attached to each other, and influence one another's activity, such as increased dopamine release as a result of alcohol binding to adenosine receptors. These are known as:
  • receptor mosaics
  • antagonistic ligands
  • tolerance-based receptors
  • substance-use receptors
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