1
NU110
NU110 / NU 110: Exam 1(Latest Update )
Integrated Human Sciences | Questions & Answers | 100
% Correct | Grade A – Galen
The Central Nervous System (CNS) - ANS Includes the brain and the spinal cord
The Peripheral Nervous System (PNS) - ANS includes the nerves that connect the
Central Nervous system with the rest of the body
2 parts of nervous tissue - ANS Glia Cells, and neurons.
Glia cell - ANS are support cells of the brain
astrocytes, microglia, oligodendrocytes
Astrocytes - ANS makes the blood brain barrier. Connects to blood vessels and
acts as the gate keeper. Does allot with metabolism, mostly of medication
Microglia - ANS immune cells of the brain. Migrate to the area of injury, it covers
it and cleans it up. It does not have allot of T or B cells.
Oligodendrocytes - ANS secretes allot of myelin. It is important for the neuron.
Actually wraps around portions of the neuron.
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NU110
Myelin - ANS increases the speed of the neuron. It is the white matter of the brain
and the spinal cord.
Neurons and Glia can grow back - ANS but they grow back very slowly.
neuron information only travels - ANS in one direction. That way there is no traffic
jams or mixed signals.
Dendrites - ANS where the information comes in to the neuron
Cell Body - ANS houses the nucleus and other cell structures. Receives signal from
the dendrites.
Axon - ANS gets information from the cell body
Axon Terminals - ANS Get information from the axon. Is where we release all of
the neuron transmitters.
Myelin - ANS Not all neurons have ______ but those that do move information
quickly
Afferent Neurons - ANS are sensory neurons. Carries information to the Central
nervous system.
Interneurons - ANS makes connections within the central nervous system.
Efferent Neurons. - ANS Motor neurons. Carry information away from the Central
nervous system and towards the periphery.
Neurons and Glia are all - ANS intermingled together
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NU110
Action Potential or Nerve impulse - ANS is the electrical signal. Can only happen in
the neuron
Neuron can only be in one of 3 states - ANS Polarization, Depolarization,
Repolarization
Polarization State. - ANS is the resting State. The inside is more negative.
Potassium is being moved out. and the inside of the cell becomes more negative.
Depolarization - ANS Is a stimulated neuron. The inside of the cell becomes more
positive. There is allot of Sodium to come into the cell.
Repolarization - ANS returns to resting. Charge goes back to negative inside. Puts
all of the ions back to where they are supposed to be. So potassium moves out.
Back to negative charge on the inside.
Refectory Period. - ANS Cell is not able to respond to another action potential
until repolarization is complete and everything is back to where it is supposed to
be.
Make myelin (2 cells) - ANS are schwann cells and oligodendrocytes.
Schwann cell is located in the - ANS peripheral nervous system. makes myelin
In a myelinated nerve - ANS the nerve impulse jumps from node to node.
Saltatory Conduction - ANS it is the jumping of the nerve impulse in the
myelinated nerve.
NU110
NU110
NU110 / NU 110: Exam 1(Latest Update )
Integrated Human Sciences | Questions & Answers | 100
% Correct | Grade A – Galen
The Central Nervous System (CNS) - ANS Includes the brain and the spinal cord
The Peripheral Nervous System (PNS) - ANS includes the nerves that connect the
Central Nervous system with the rest of the body
2 parts of nervous tissue - ANS Glia Cells, and neurons.
Glia cell - ANS are support cells of the brain
astrocytes, microglia, oligodendrocytes
Astrocytes - ANS makes the blood brain barrier. Connects to blood vessels and
acts as the gate keeper. Does allot with metabolism, mostly of medication
Microglia - ANS immune cells of the brain. Migrate to the area of injury, it covers
it and cleans it up. It does not have allot of T or B cells.
Oligodendrocytes - ANS secretes allot of myelin. It is important for the neuron.
Actually wraps around portions of the neuron.
NU110
, 2
NU110
Myelin - ANS increases the speed of the neuron. It is the white matter of the brain
and the spinal cord.
Neurons and Glia can grow back - ANS but they grow back very slowly.
neuron information only travels - ANS in one direction. That way there is no traffic
jams or mixed signals.
Dendrites - ANS where the information comes in to the neuron
Cell Body - ANS houses the nucleus and other cell structures. Receives signal from
the dendrites.
Axon - ANS gets information from the cell body
Axon Terminals - ANS Get information from the axon. Is where we release all of
the neuron transmitters.
Myelin - ANS Not all neurons have ______ but those that do move information
quickly
Afferent Neurons - ANS are sensory neurons. Carries information to the Central
nervous system.
Interneurons - ANS makes connections within the central nervous system.
Efferent Neurons. - ANS Motor neurons. Carry information away from the Central
nervous system and towards the periphery.
Neurons and Glia are all - ANS intermingled together
NU110
, 3
NU110
Action Potential or Nerve impulse - ANS is the electrical signal. Can only happen in
the neuron
Neuron can only be in one of 3 states - ANS Polarization, Depolarization,
Repolarization
Polarization State. - ANS is the resting State. The inside is more negative.
Potassium is being moved out. and the inside of the cell becomes more negative.
Depolarization - ANS Is a stimulated neuron. The inside of the cell becomes more
positive. There is allot of Sodium to come into the cell.
Repolarization - ANS returns to resting. Charge goes back to negative inside. Puts
all of the ions back to where they are supposed to be. So potassium moves out.
Back to negative charge on the inside.
Refectory Period. - ANS Cell is not able to respond to another action potential
until repolarization is complete and everything is back to where it is supposed to
be.
Make myelin (2 cells) - ANS are schwann cells and oligodendrocytes.
Schwann cell is located in the - ANS peripheral nervous system. makes myelin
In a myelinated nerve - ANS the nerve impulse jumps from node to node.
Saltatory Conduction - ANS it is the jumping of the nerve impulse in the
myelinated nerve.
NU110
