PSYC 1001 Midterm #2 Exam Questions
With Correct Answers
Neurons - CORRECT ANSWER✔✔-Cells that receive and transmit electrical signals
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Soma - CORRECT ANSWER✔✔-Contains the cell nucleus and much of the
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chemical machinery common to most cells
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Dendrites - CORRECT ANSWER✔✔-Parts of a neuron specialized to receive
| | | | | | | | | |
information
Axon - CORRECT ANSWER✔✔-A long, thin fibre that transmits signals away from
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the soma to other neurons/muscles/grands
| | | |
Myelin Sheath - CORRECT ANSWER✔✔-Insulating material, derived from glial
| | | | | | | | |
cells, that encases some axons. Serves to speed up transmissions of signals that
| | | | | | | | | | | | |
move along axons.
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Terminal Buttons - CORRECT ANSWER✔✔-Small knobs that secrete chemicals
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called neurotransmitters
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Synapse - CORRECT ANSWER✔✔-A junction between the terminal button of one
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neuron and either the dendrite of another neuron, the membrane of a muscle
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fibre, or a gland
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,Nodes of Ranvier - CORRECT ANSWER✔✔-Gaps between sections of myelin
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Action Potential - CORRECT ANSWER✔✔-A very brief shift in a neuron's electrical
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charge that travels along an axon. This happens when a neuron is stimulated.
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Absolute Refractory Period - CORRECT ANSWER✔✔-Minimum length of time
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between action potentials
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Receptor Cells - CORRECT ANSWER✔✔-Cells that serve to stimulate neurons.
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Neurons that receive incoming environmental stimulus and turn it into action
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potential.
Sodium Channel - CORRECT ANSWER✔✔-Part of the neuron that opens due to a
| | | | | | | | | | | | |
stimulus and allows flow of ions
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Depolarization - CORRECT ANSWER✔✔-Results from flow of sodium ions into the
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sodium channel, starting an action potential or nerve impulse
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Threshold of Excitation - CORRECT ANSWER✔✔-For a neuron to generate an
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action potential, it must be polarized from -70 to -65 mv
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Pre-Synaptic Neuron - CORRECT ANSWER✔✔-The neuron that sends a signal
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across the synapse
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Post-Synaptic Neuron - CORRECT ANSWER✔✔-The neuron that receives a signal
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from across the synapse
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, Synaptic Cleft - CORRECT ANSWER✔✔-Fluid filled space between the two
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neurons
Vesicles - CORRECT ANSWER✔✔-Contained in the terminal button and contains
| | | | | | | | | |
neurotransmitters
Neurotransmitters - CORRECT ANSWER✔✔-Released into the synaptic cleft, | | | | | | | |
crosses the gap and binds with the post-synaptic neuron. Communicates action
| | | | | | | | | | |
potential.
Reuptake - CORRECT ANSWER✔✔-Neurotransmitter remaining in the synaptic
| | | | | | | |
cleft is broken down by an enzyme and reabsorbed by the pre-synaptic neuron to
| | | | | | | | | | | | | |
produce more neurotransmitters
| |
Excitatory Neurotransmitters - CORRECT ANSWER✔✔-Neurotransmitters that
| | | | | |
make it more likely that the post-synaptic neuron will fire
| | | | | | | | |
Inhibitory Neurotransmitters - CORRECT ANSWER✔✔-Neurotransmitters that
| | | | | |
make it less likely that the post-synaptic neuron will fire
| | | | | | | | |
Psychopharmacology - CORRECT ANSWER✔✔-The study of the effects of drugs | | | | | | | | | |
on the nervous system functioning and human behaviour
| | | | | | |
Psychoactive Drugs - CORRECT ANSWER✔✔-Drugs that have influence on the
| | | | | | | | | |
effects of neurotransmitters
| |
With Correct Answers
Neurons - CORRECT ANSWER✔✔-Cells that receive and transmit electrical signals
| | | | | | | | |
Soma - CORRECT ANSWER✔✔-Contains the cell nucleus and much of the
| | | | | | | | | | |
chemical machinery common to most cells
| | | | |
Dendrites - CORRECT ANSWER✔✔-Parts of a neuron specialized to receive
| | | | | | | | | |
information
Axon - CORRECT ANSWER✔✔-A long, thin fibre that transmits signals away from
| | | | | | | | | | | |
the soma to other neurons/muscles/grands
| | | |
Myelin Sheath - CORRECT ANSWER✔✔-Insulating material, derived from glial
| | | | | | | | |
cells, that encases some axons. Serves to speed up transmissions of signals that
| | | | | | | | | | | | |
move along axons.
| |
Terminal Buttons - CORRECT ANSWER✔✔-Small knobs that secrete chemicals
| | | | | | | | |
called neurotransmitters
|
Synapse - CORRECT ANSWER✔✔-A junction between the terminal button of one
| | | | | | | | | | |
neuron and either the dendrite of another neuron, the membrane of a muscle
| | | | | | | | | | | | |
fibre, or a gland
| | |
,Nodes of Ranvier - CORRECT ANSWER✔✔-Gaps between sections of myelin
| | | | | | | | |
Action Potential - CORRECT ANSWER✔✔-A very brief shift in a neuron's electrical
| | | | | | | | | | | |
charge that travels along an axon. This happens when a neuron is stimulated.
| | | | | | | | | | | |
Absolute Refractory Period - CORRECT ANSWER✔✔-Minimum length of time
| | | | | | | | |
between action potentials
| |
Receptor Cells - CORRECT ANSWER✔✔-Cells that serve to stimulate neurons.
| | | | | | | | | |
Neurons that receive incoming environmental stimulus and turn it into action
| | | | | | | | | | |
potential.
Sodium Channel - CORRECT ANSWER✔✔-Part of the neuron that opens due to a
| | | | | | | | | | | | |
stimulus and allows flow of ions
| | | | |
Depolarization - CORRECT ANSWER✔✔-Results from flow of sodium ions into the
| | | | | | | | | | |
sodium channel, starting an action potential or nerve impulse
| | | | | | | |
Threshold of Excitation - CORRECT ANSWER✔✔-For a neuron to generate an
| | | | | | | | | | |
action potential, it must be polarized from -70 to -65 mv
| | | | | | | | | |
Pre-Synaptic Neuron - CORRECT ANSWER✔✔-The neuron that sends a signal
| | | | | | | | | |
across the synapse
| |
Post-Synaptic Neuron - CORRECT ANSWER✔✔-The neuron that receives a signal
| | | | | | | | | |
from across the synapse
| | |
, Synaptic Cleft - CORRECT ANSWER✔✔-Fluid filled space between the two
| | | | | | | | | |
neurons
Vesicles - CORRECT ANSWER✔✔-Contained in the terminal button and contains
| | | | | | | | | |
neurotransmitters
Neurotransmitters - CORRECT ANSWER✔✔-Released into the synaptic cleft, | | | | | | | |
crosses the gap and binds with the post-synaptic neuron. Communicates action
| | | | | | | | | | |
potential.
Reuptake - CORRECT ANSWER✔✔-Neurotransmitter remaining in the synaptic
| | | | | | | |
cleft is broken down by an enzyme and reabsorbed by the pre-synaptic neuron to
| | | | | | | | | | | | | |
produce more neurotransmitters
| |
Excitatory Neurotransmitters - CORRECT ANSWER✔✔-Neurotransmitters that
| | | | | |
make it more likely that the post-synaptic neuron will fire
| | | | | | | | |
Inhibitory Neurotransmitters - CORRECT ANSWER✔✔-Neurotransmitters that
| | | | | |
make it less likely that the post-synaptic neuron will fire
| | | | | | | | |
Psychopharmacology - CORRECT ANSWER✔✔-The study of the effects of drugs | | | | | | | | | |
on the nervous system functioning and human behaviour
| | | | | | |
Psychoactive Drugs - CORRECT ANSWER✔✔-Drugs that have influence on the
| | | | | | | | | |
effects of neurotransmitters
| |
