Download Nervous Tissue

Functional Organization of Nervous Tissue
Introduction
Cells
Membrane
Potential
Action
Potential
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Synapse
FINAL ROUND
Introduction:
$100 Question
This is NOT a part of the peripheral
nervous system:
a. cranial nerve
b. ganglion
c. spinal cord
d. spinal nerve
ANSWER
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Introduction:
$100 Answer
This is NOT a part of the peripheral
nervous system:
a. cranial nerve
b. ganglion
c. spinal cord
d. spinal nerve
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Introduction:
$200 Question
This extensive network of axons is located
outside of the CNS:
a. ganglion
b. plexus
c. sensory receptor
d. spinal cord
ANSWER
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Introduction:
$200 Answer
This extensive network of axons is located
outside of the CNS:
a. ganglion
b. plexus
c. sensory receptor
d. spinal cord
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Introduction:
$300 Question
This portion of the motor division of the
nervous system conducts action potentials
from the central nervous system to skeletal
muscle fibers.
a. afferent
b. autonomic
c. somatic
d. sympathetic
ANSWER
BACK TO GAME
Introduction:
$300 Answer
This portion of the motor division of the
nervous system conducts action potentials
from the central nervous system to skeletal
muscle fibers.
a. afferent
b. autonomic
c. somatic
d. sympathetic
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Introduction:
$400 Question
The cell bodies of sensory neurons are
located in the dorsal root ganglion near the
spinal cord.
True/False
ANSWER
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Introduction:
$400 Answer
The cell bodies of sensory neurons are
located in the dorsal root ganglion near the
spinal cord.
True/False
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Introduction:
$500 Question
__________ pairs of cranial nerves originate
from the brain, and __________ pairs of
spinal nerves originate from the spinal cord.
a. two, twelve
b. eight, twenty-four
c. twelve, thirty-one
d. fifteen, thirty-six
e. sixteen, thirty-eight
ANSWER
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Introduction:
$500 Answer
__________ pairs of cranial nerves originate
from the brain, and __________ pairs of
spinal nerves originate from the spinal cord.
a. two, twelve
b. eight, twenty-four
c. twelve, thirty-one
d. fifteen, thirty-six
e. sixteen, thirty-eight
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Cells:
$100 Question
These cells conduct action potentials from
one neuron to another within the CNS:
a. sensory (afferent) neurons
b. motor (efferent) neurons
c. interneurons (association) neurons
d. bipolar neurons
ANSWER
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Cells:
$100 Answer
These cells conduct action potentials from
one neuron to another within the CNS:
a. sensory (afferent) neurons
b. motor (efferent) neurons
c. interneurons (association) neurons
d. bipolar neurons
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Cells:
$200 Question
Axons terminate by branching to form
small extensions with enlarged ends which
are called this:
a. dendrites
b. neuron cell bodies
c. presynaptic terminals
d. postsynaptic membranes
e. axon hillocks
ANSWER
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Cells:
$200 Answer
Axons terminate by branching to form
small extensions with enlarged ends which
are called this:
a. dendrites
b. neuron cell bodies
c. presynaptic terminals
d. postsynaptic membranes
e. axon hillocks
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Cells:
$300 Question
These cell types produce and help
circulate cerebrospinal fluid:
a. astrocytes
b. microglia
c. ependymal cells
d. Schwann cells
e. oligodendrocytes
ANSWER
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Cells:
$300 Answer
These cell types produce and help
circulate cerebrospinal fluid:
a. astrocytes
b. microglia
c. ependymal cells
d. Schwann cells
e. oligodendrocytes
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Cells:
$400 Question
These statements about unipolar neurons
are all true except:
a. most are sensory neurons
b. have a single process extending
from the cell body
c. located in the eye and nasal cavity
d. have no dendrites
ANSWER
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Cells:
$400 Answer
These statements about unipolar neurons
are all true except:
a. most are sensory neurons
b. have a single process extending
from the cell body
c. located in the eye and nasal cavity
d. have no dendrites
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Cells:
$500 Question
This statement best describes the myelin sheath:
a. made of Schwann cells(neurolemmocytes)
b. covering surrounding an axon
c. provides insulation from other axons
d. helps conduct the action potential more
rapidly
e. all are true
ANSWER
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Cells:
$500 Answer
This statement best describes the myelin
sheath:
a. made of Schwann cells (neurolemmocytes)
b. covering surrounding an axon
c. provides insulation from other axons
d. helps conduct the action potential more
rapidly
e. all are true
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Membrane Potential:
$100 Question
Compared to the outside of the resting
plasma membrane, the inside surface of
the membrane is this:
a. positively charged
b. electrically neutral
c. negatively charged
d. continuously reversing so that it is
positive one second and negative
ANSWER
the next
BACK TO GAME
Membrane Potential:
$100 Answer
Compared to the outside of the resting
plasma membrane, the inside surface of
the membrane is this:
a. positively charged
b. electrically neutral
c. negatively charged
d. continuously reversing so that it is
positive one second and negative
the next
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Membrane Potential:
$200 Question
Because of the sodium-potassium pump,
there are:
a. more K+ outside the cell than inside and
more Na+ inside the cell than outside
b. more K+ inside the cell than outside and
Na+ outside the cell than inside
c. more K+ and Na inside the cell than outside
d. more K+ and Na outside the cell than inside
ANSWER
BACK TO GAME
Membrane Potential:
$200 Answer
Because of the sodium-potassium pump,
there are:
a. more K+ outside the cell than inside and
more Na+ inside the cell than outside
b. more K+ inside the cell than outside and
Na+ outside the cell than inside
c. more K+ and Na inside the cell than outside
d. more K+ and Na outside the cell than inside
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Membrane Potential:
$300 Question
The resting membrane potential results
when the tendency for these ions to diffuse
out of the cell is balanced by their attraction
to opposite charges inside the cell:
a. Na+
b. K+
c. Cld. negatively charged proteins
ANSWER
e. Ca2+
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Membrane Potential:
$300 Answer
The resting membrane potential results
when the tendency for these ions to diffuse
out of the cell is balanced by their attraction
to opposite charges inside the cell:
a. Na+
b. K+
c. Cld. negatively charged proteins
e. Ca2+
BACK TO GAME
Membrane Potential:
$400 Question
The resting membrane potential of nerve
cells due to the electric charge difference
across the plasma membranes is
approximately -85mv.
True/False
ANSWER
BACK TO GAME
Membrane Potential:
$400 Answer
The resting membrane potential of nerve
cells due to the electric charge difference
across the plasma membranes is
approximately -85mv.
True/False
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Membrane Potential:
$500 Question
Hyperpolarization, which is an increase in
membrane potential, can be caused by
this:
a. opening of Cl- gated channels
b. opening of Ca2+ gated channels
c. opening of Na+ gated channels
d. increase of extracellular K+
ANSWER
BACK TO GAME
Membrane Potential:
$500 Answer
Hyperpolarization, which is an increase in
membrane potential, can be caused by
this:
a. opening of Cl- gated channels
b. opening of Ca2+ gated channels
c. opening of Na+ gated channels
d. increase of extracellular K+
BACK TO GAME
Action Potential:
$100 Question
The following are characteristics of action
potentials except:
a. all-or-none
b. caused by graded potentials
reaching threshold
c. stimulus strength determines the
magnitude
d. depolarization is followed by
repolarization
ANSWER
BACK TO GAME
Action Potential:
$100 Answer
The following are characteristics of action
potentials except:
a. all-or-none
b. caused by graded potentials
reaching threshold
c. stimulus strength determines the
magnitude
d. depolarization is followed by
repolarization
BACK TO GAME
Action Potential:
$200 Question
Depolarization occurs because more Na+
diffuse into the cell than K + diffuse out of
it.
True/False
ANSWER
BACK TO GAME
Action Potential:
$200 Answer
Depolarization occurs because more Na+
diffuse into the cell than K + diffuse out of
it.
True/False
BACK TO GAME
Action Potential:
$300 Question
This best describes the absolute
refractory period:
a.
limits how many action potentials can be
produced during a given period of time
b.
prevents an action potential from starting
another action potential at the same point on
the plasma membrane
c.
is the period of time when a strong stimulus
can initiate a second action potential.
d.
both a and b.
e.
all of the above
ANSWER
BACK TO GAME
Action Potential:
$300 Answer
This best describes the absolute
refractory period:
a.
limits how many action potentials can be
produced during a given period of time
b.
prevents an action potential from starting
another action potential at the same point on
the plasma membrane
c.
is the period of time when a strong stimulus
can initiate a second action potential
d. both a and b
e. all of the above
BACK TO GAME
Action Potential:
$400 Question
During saltatory conduction, action
potentials jump from this:
a. one astrocyte to another
b. an axon to a dendrite
c. one internode to another
d. one node of Ranvier to another
e. one microglia cell to another
ANSWER
BACK TO GAME
Action Potential:
$400 Answer
During saltatory conduction, action
potentials jump from this:
a. one astrocyte to another
b. an axon to a dendrite
c. one internode to another
d. one node of Ranvier to another
e. one microglia cell to another
BACK TO GAME
Action Potential:
$500 Question
If the duration of the absolute refractory
period of a nerve cell is 1millisecond (ms),
this many action potentials are generated
by a maximal stimulus in 1 second:
a. 1
b. 10
c. 100
d. 1000
ANSWER
BACK TO GAME
Action Potential:
$500 Answer
If the duration of the absolute refractory
period of a nerve cell is 1millisecond (ms),
this many action potentials are generated
by a maximal stimulus in 1 second:
a. 1
b. 10
c. 100
d. 1000
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Synapse:
$100 Question
These are all part of a chemical synapse
except:
a. presynaptic terminal
b. synaptic cleft
c. postsynaptic membrane
d. connexons
ANSWER
BACK TO GAME
Synapse:
$100 Answer
These are all part of a chemical synapse
except:
a. presynaptic terminal
b. synaptic cleft
c. postsynaptic membrane
d. connexons
BACK TO GAME
Synapse:
$200 Question
Acetylcholinesterase, monoamine oxidase
(MAO), and catechol-O-methyltransferase are
this:
a. neurotransmitters
b. enzymes that break down neurotransmitters
c. enzymes that act as neuromodulators
d. enzymes that could produce an EPSP
e. substances that could produce an IPSP
ANSWER
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Synapse:
$200 Answer
Acetylcholinesterase, monoamine oxidase
(MAO), and catechol-O-methyltransferase are
this:
a. neurotransmitters
b. enzymes that break down neurotransmitters
c. enzymes that act as neuromodulators
d. enzymes that could produce an EPSP
e. substances that could produce an IPSP
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Synapse:
$300 Question
This characteristic can be produced by an
IPSP:
a. local hyperpolarization
b. decreased excitability of neuron
c. increased permeability of
postsynaptic membrane to K+ and
Cl- ions
d. all of these
ANSWER
BACK TO GAME
Synapse:
$300 Answer
This characteristic can be produced by an
IPSP:
a. local hyperpolarization
b. decreased excitability of neuron
c. increased permeability of
postsynaptic membrane to K+ and
Cl- ions
d. all of these
BACK TO GAME
Synapse:
$400 Question
When two action potentials arrive in very
close succession at a single presynaptic
terminal, this action occurs:
a. an IPSP is produced
b. the second action potential cancels
the first
c. spatial summation occurs
d. temporal summation occurs
ANSWER
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Synapse:
$400 Answer
When two action potentials arrive in very
close succession at a single presynaptic
terminal, this action occurs:
a. an IPSP is produced
b. the second action potential cancels
the first
c. spatial summation occurs
d. temporal summation occurs
BACK TO GAME
Synapse:
$500 Question
This combination represents a convergent pathway
in the nervous system:
a. 1 presynaptic neuron synapses with 4
postsynaptic neurons
b. 1 presynaptic neuron synapses with 1
postsynaptic neuron
c. 3 presynaptic neurons synapse with 1
postsynaptic neuron
d. an afferent neuron synapses with an
ANSWER
association neuron
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Synapse:
$500 Answer
This combination represents a convergent
pathway in the nervous system:
a. 1 presynaptic neuron synapses with 4
postsynaptic neurons
b. 1 presynaptic neuron synapses with 1
postsynaptic neuron
c. 3 presynaptic neurons synapse with 1
postsynaptic neuron
d. an afferent neuron synapses with an
association neuron
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FINAL ROUND Question
This kind of nerve fiber would conduct
action potentials the FASTEST:
a. unmyelinated nerve fibers
b. type A fibers
c. type B fibers
d. type C fibers
ANSWER
BACK TO GAME
FINAL ROUND Answer
This kind of nerve fiber would conduct
action potentials the FASTEST:
a. unmyelinated nerve fibers
b. type A fibers
c. type B fibers
d. type C fibers
BACK TO GAME