PSYC 2000 LSU Exam 1 (ch. 2)
Questions and Answers 100% Pass
branch-like structures that receive messages from other neurons - ✔✔dendrites
the cell body of the neuron, responsible for maintaining the life of the cell - ✔✔soma
long, tube like structure that carries the neural message to other cells - ✔✔axon
little knobs at the end of the axon - ✔✔axon terminals
the basic cell that makes up the nervous system and receives and sends messages within
that system - ✔✔neuron
cells that provide support for the neurons to grow on and around - ✔✔glial cells
deliver nutrients to the neurons and produce myelin to coat axons - ✔✔glial cells
fatty substance produced by certain glial cells that coat the axons of neurons -
✔✔myelin
insulates, protects, and speeds up the neural impulse - ✔✔myelin
signals within one neuron - ✔✔electrical
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, signals between two neurons - ✔✔chemical
controls cell and helps it survive - ✔✔nucleus
part of the nervous system consisting of the brain and spinal chord - ✔✔central nervous
system
long bundle of neurons that a carries messages and is responsible for very fast, life
saving reflexes - ✔✔spinal chord
all nerves and neurons that are not contained in the brain and spinal chord but that run
through the body itself - ✔✔peripheral nervous system
type of glial cell that runs through the central nervous system - ✔✔oligodendrocytes
type of glial cell that runs through the peripheral nervous system - ✔✔schwann cells
regularly spaced gaps in the myelin sheath around an axon or nerve fiber, causes
message to 'jump' quickly - ✔✔nodes of ranviner
when sodium ions defuse into the cell - ✔✔depolarization
when potassium ions diffuse out of the cell - ✔✔repolarization
is the point of depolarization at which the neuron fires, transmitting information to
another neuron - ✔✔action potential
a neuron either fires completely or it does not fire at all - ✔✔all or none
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Questions and Answers 100% Pass
branch-like structures that receive messages from other neurons - ✔✔dendrites
the cell body of the neuron, responsible for maintaining the life of the cell - ✔✔soma
long, tube like structure that carries the neural message to other cells - ✔✔axon
little knobs at the end of the axon - ✔✔axon terminals
the basic cell that makes up the nervous system and receives and sends messages within
that system - ✔✔neuron
cells that provide support for the neurons to grow on and around - ✔✔glial cells
deliver nutrients to the neurons and produce myelin to coat axons - ✔✔glial cells
fatty substance produced by certain glial cells that coat the axons of neurons -
✔✔myelin
insulates, protects, and speeds up the neural impulse - ✔✔myelin
signals within one neuron - ✔✔electrical
Brittie Donald, All Rights Reserved © 2025 1
, signals between two neurons - ✔✔chemical
controls cell and helps it survive - ✔✔nucleus
part of the nervous system consisting of the brain and spinal chord - ✔✔central nervous
system
long bundle of neurons that a carries messages and is responsible for very fast, life
saving reflexes - ✔✔spinal chord
all nerves and neurons that are not contained in the brain and spinal chord but that run
through the body itself - ✔✔peripheral nervous system
type of glial cell that runs through the central nervous system - ✔✔oligodendrocytes
type of glial cell that runs through the peripheral nervous system - ✔✔schwann cells
regularly spaced gaps in the myelin sheath around an axon or nerve fiber, causes
message to 'jump' quickly - ✔✔nodes of ranviner
when sodium ions defuse into the cell - ✔✔depolarization
when potassium ions diffuse out of the cell - ✔✔repolarization
is the point of depolarization at which the neuron fires, transmitting information to
another neuron - ✔✔action potential
a neuron either fires completely or it does not fire at all - ✔✔all or none
Brittie Donald, All Rights Reserved © 2025 2
