12/7/25, 8:34 AM Galen A&P NU-110 Exam 4 Questions and Answers (Verified Answers) Most Recent exam COMPLETE (2025) (Latest Update 2026…
Galen A&P NU-110 Exam 4 Questions and
Answers (Verified Answers) Most Recent exam
COMPLETE (2025) (Latest Update 2026) UPDATE!!
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Terms in this set (239)
The Central Nervous Includes the brain and the spinal cord
System (CNS)
The Peripheral Nervous includes the nerves that connect the Central Nervous
System (PNS) system with the rest of the body
What are the 2 parts of Glia Cells, and neurons.
nervous tissue
are support cells of the brain
Glia cell
astrocytes, microglia, oligodendrocytes
makes the blood brain barrier. Connects to blood
Astrocytes vessels and acts as the gate keeper. Does allot with
metabolism, mostly of medication
immune cells of the brain. Migrate to the area of injury,
Microglia it covers it and cleans it up. It does not have allot of T
or B cells.
secretes allot of myelin. It is important for the neuron.
Oligodendrocytes
Actually wraps around portions of the neuron.
increases the speed of the neuron. It is the white
Myelin
matter of the brain and the spinal cord.
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,12/7/25, 8:34 AM Galen A&P NU-110 Exam 4 Questions and Answers (Verified Answers) Most Recent exam COMPLETE (2025) (Latest Update 2026…
Neurons and Glia can but they grow back very slowly.
grow back
In the neuron information in one direction. That way there is no traffic jams or
only travels mixed signals.
Dendrites where the information comes in to the neuron
houses the nucleus and other cell structures. Receives
Cell Body
signal from the dendrites.
Axon gets information from the cell body
Get information from the axon. Is where we release all
Axon Terminals
of the neuron transmitters.
Not all neurons have ______ Myelin
but those that do move
information quickly
are sensory neurons. Carries information to the
Afferent Neurons
Central nervous system.
Interneurons makes connections within the central nervous system.
Motor neurons. Carry information away from the
Efferent Neurons.
Central nervous system and towards the periphery.
Neurons and glia are all intermingled together
ActionPotential or Nerve is the electrical signal. Can only happen in the neuron
impulse
Neuron can only be in one Polarization, Depolarization, Repolarization
of 3 states
is the resting State. The inside is more negative.
Polarization State. Potassium is being moved out. and the inside of the
cell becomes more negative.
Is a stimulated neuron. The inside of the cell becomes
Depolarization more positive. There is allot of Sodium to come into
the cell.
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, 12/7/25, 8:34 AM Galen A&P NU-110 Exam 4 Questions and Answers (Verified Answers) Most Recent exam COMPLETE (2025) (Latest Update 2026…
returns to resting. Charge goes back to negative
inside. Puts all of the ions back to where they are
Repolarization
supposed to be. So potassium moves out. Back to
negative charge on the inside.
Cell is not able to respond to another action potential
Refectory Period. until repolarization is complete and everything is back
to where it is supposed to be.
The two cells that make are schwann cells and oligodendrocytes.
myelin
Schwann cell is located in peripheral nervous system. makes myelin
the
are located in the central nervous system. Makes
Oligodendrocytes
myelin.
In a myelinated nerve the nerve impulse jumps from node to node.
What is Saltatory it is the jumping of the nerve impulse in the
Conduction myelinated nerve.
Myelination increases the speed of the nerve impulse.
Gray matter does not have any myelination.
is the only bridge from the right and left side of the
Corpus Collosum
brain.
is the space between two neurons. Neurons do not
Synapse or Synaptic Cleft
physically touch.
Neurotransmitter chemical substances contained in the vesicles.
is that the nerve signal has to travel down the signal.
1st step of synapse When it gets to the end it goes with the vesicle and
moves to the end.
Step 2 of Synapse is exocytosis of the chemical
is the chemical binds with the receptor in the new
Step 3 of Synapse nerve. To start to process over again in a different
neuron
https://quizlet.com/1118391106/galen-ap-nu-110-exam-4-questions-and-answers-verified-answers-most-recent-exam-complete-2025-latest-update-20… 3/17
Galen A&P NU-110 Exam 4 Questions and
Answers (Verified Answers) Most Recent exam
COMPLETE (2025) (Latest Update 2026) UPDATE!!
Save
Terms in this set (239)
The Central Nervous Includes the brain and the spinal cord
System (CNS)
The Peripheral Nervous includes the nerves that connect the Central Nervous
System (PNS) system with the rest of the body
What are the 2 parts of Glia Cells, and neurons.
nervous tissue
are support cells of the brain
Glia cell
astrocytes, microglia, oligodendrocytes
makes the blood brain barrier. Connects to blood
Astrocytes vessels and acts as the gate keeper. Does allot with
metabolism, mostly of medication
immune cells of the brain. Migrate to the area of injury,
Microglia it covers it and cleans it up. It does not have allot of T
or B cells.
secretes allot of myelin. It is important for the neuron.
Oligodendrocytes
Actually wraps around portions of the neuron.
increases the speed of the neuron. It is the white
Myelin
matter of the brain and the spinal cord.
https://quizlet.com/1118391106/galen-ap-nu-110-exam-4-questions-and-answers-verified-answers-most-recent-exam-complete-2025-latest-update-20… 1/17
,12/7/25, 8:34 AM Galen A&P NU-110 Exam 4 Questions and Answers (Verified Answers) Most Recent exam COMPLETE (2025) (Latest Update 2026…
Neurons and Glia can but they grow back very slowly.
grow back
In the neuron information in one direction. That way there is no traffic jams or
only travels mixed signals.
Dendrites where the information comes in to the neuron
houses the nucleus and other cell structures. Receives
Cell Body
signal from the dendrites.
Axon gets information from the cell body
Get information from the axon. Is where we release all
Axon Terminals
of the neuron transmitters.
Not all neurons have ______ Myelin
but those that do move
information quickly
are sensory neurons. Carries information to the
Afferent Neurons
Central nervous system.
Interneurons makes connections within the central nervous system.
Motor neurons. Carry information away from the
Efferent Neurons.
Central nervous system and towards the periphery.
Neurons and glia are all intermingled together
ActionPotential or Nerve is the electrical signal. Can only happen in the neuron
impulse
Neuron can only be in one Polarization, Depolarization, Repolarization
of 3 states
is the resting State. The inside is more negative.
Polarization State. Potassium is being moved out. and the inside of the
cell becomes more negative.
Is a stimulated neuron. The inside of the cell becomes
Depolarization more positive. There is allot of Sodium to come into
the cell.
https://quizlet.com/1118391106/galen-ap-nu-110-exam-4-questions-and-answers-verified-answers-most-recent-exam-complete-2025-latest-update-20… 2/17
, 12/7/25, 8:34 AM Galen A&P NU-110 Exam 4 Questions and Answers (Verified Answers) Most Recent exam COMPLETE (2025) (Latest Update 2026…
returns to resting. Charge goes back to negative
inside. Puts all of the ions back to where they are
Repolarization
supposed to be. So potassium moves out. Back to
negative charge on the inside.
Cell is not able to respond to another action potential
Refectory Period. until repolarization is complete and everything is back
to where it is supposed to be.
The two cells that make are schwann cells and oligodendrocytes.
myelin
Schwann cell is located in peripheral nervous system. makes myelin
the
are located in the central nervous system. Makes
Oligodendrocytes
myelin.
In a myelinated nerve the nerve impulse jumps from node to node.
What is Saltatory it is the jumping of the nerve impulse in the
Conduction myelinated nerve.
Myelination increases the speed of the nerve impulse.
Gray matter does not have any myelination.
is the only bridge from the right and left side of the
Corpus Collosum
brain.
is the space between two neurons. Neurons do not
Synapse or Synaptic Cleft
physically touch.
Neurotransmitter chemical substances contained in the vesicles.
is that the nerve signal has to travel down the signal.
1st step of synapse When it gets to the end it goes with the vesicle and
moves to the end.
Step 2 of Synapse is exocytosis of the chemical
is the chemical binds with the receptor in the new
Step 3 of Synapse nerve. To start to process over again in a different
neuron
https://quizlet.com/1118391106/galen-ap-nu-110-exam-4-questions-and-answers-verified-answers-most-recent-exam-complete-2025-latest-update-20… 3/17
