1
GALEN A&P NU-110 EXAM 4 LATEST
QUESTIONS WITH VERIFIED SOLUTIONS 2025 |
GRADED A+
The Central Nervous System (CNS) - correct-answer -Includes the brain and the
spinal cord
The Peripheral Nervous System (PNS) - correct-answer -includes the nerves that
connect the Central Nervous system with the rest of the body
2 parts of nervous tissue - correct-answer -Glia Cells, and neurons.
Glia cell - correct-answer -are support cells of the brain
astrocytes, microglia, oligodendrocytes
Astrocytes - correct-answer -makes the blood brain barrier. Connects to blood
vessels and acts as the gate keeper. Does allot with metabolism, mostly of
medication
, 2
Microglia - correct-answer -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 - correct-answer -secretes allot of myelin. It is important for the
neuron. Actually wraps around portions of the neuron.
Myelin - correct-answer -increases the speed of the neuron. It is the white matter
of the brain and the spinal cord.
Neurons and Glia can grow back - correct-answer -but they grow back very slowly.
neuron information only travels - correct-answer -in one direction. That way there
is no traffic jams or mixed signals.
Dendrites - correct-answer -where the information comes in to the neuron
Cell Body - correct-answer -houses the nucleus and other cell structures. Receives
signal from the dendrites.
, 3
Axon - correct-answer -gets information from the cell body
Axon Terminals - correct-answer -Get information from the axon. Is where we
release all of the neuron transmitters.
Myelin - correct-answer -Not all neurons have ______ but those that do move
information quickly
Afferent Neurons - correct-answer -are sensory neurons. Carries information to
the Central nervous system.
Interneurons - correct-answer -makes connections within the central nervous
system.
Efferent Neurons. - correct-answer -Motor neurons. Carry information away from
the Central nervous system and towards the periphery.
, 4
Neurons and Glia are all - correct-answer -intermingled together
Action Potential or Nerve impulse - correct-answer -is the electrical signal. Can
only happen in the neuron
Neuron can only be in one of 3 states - correct-answer -Polarization,
Depolarization, Repolarization
Polarization State. - correct-answer -is the resting State. The inside is more
negative. Potassium is being moved out. and the inside of the cell becomes more
negative.
Depolarization - correct-answer -Is a stimulated neuron. The inside of the cell
becomes more positive. There is allot of Sodium to come into the cell.
Repolarization - correct-answer -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.
GALEN A&P NU-110 EXAM 4 LATEST
QUESTIONS WITH VERIFIED SOLUTIONS 2025 |
GRADED A+
The Central Nervous System (CNS) - correct-answer -Includes the brain and the
spinal cord
The Peripheral Nervous System (PNS) - correct-answer -includes the nerves that
connect the Central Nervous system with the rest of the body
2 parts of nervous tissue - correct-answer -Glia Cells, and neurons.
Glia cell - correct-answer -are support cells of the brain
astrocytes, microglia, oligodendrocytes
Astrocytes - correct-answer -makes the blood brain barrier. Connects to blood
vessels and acts as the gate keeper. Does allot with metabolism, mostly of
medication
, 2
Microglia - correct-answer -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 - correct-answer -secretes allot of myelin. It is important for the
neuron. Actually wraps around portions of the neuron.
Myelin - correct-answer -increases the speed of the neuron. It is the white matter
of the brain and the spinal cord.
Neurons and Glia can grow back - correct-answer -but they grow back very slowly.
neuron information only travels - correct-answer -in one direction. That way there
is no traffic jams or mixed signals.
Dendrites - correct-answer -where the information comes in to the neuron
Cell Body - correct-answer -houses the nucleus and other cell structures. Receives
signal from the dendrites.
, 3
Axon - correct-answer -gets information from the cell body
Axon Terminals - correct-answer -Get information from the axon. Is where we
release all of the neuron transmitters.
Myelin - correct-answer -Not all neurons have ______ but those that do move
information quickly
Afferent Neurons - correct-answer -are sensory neurons. Carries information to
the Central nervous system.
Interneurons - correct-answer -makes connections within the central nervous
system.
Efferent Neurons. - correct-answer -Motor neurons. Carry information away from
the Central nervous system and towards the periphery.
, 4
Neurons and Glia are all - correct-answer -intermingled together
Action Potential or Nerve impulse - correct-answer -is the electrical signal. Can
only happen in the neuron
Neuron can only be in one of 3 states - correct-answer -Polarization,
Depolarization, Repolarization
Polarization State. - correct-answer -is the resting State. The inside is more
negative. Potassium is being moved out. and the inside of the cell becomes more
negative.
Depolarization - correct-answer -Is a stimulated neuron. The inside of the cell
becomes more positive. There is allot of Sodium to come into the cell.
Repolarization - correct-answer -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.
