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GALEN A&P NU-110 EXAM 4 LATEST QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025 VERIFIED GRADED A+ CA$14.49   Add to cart
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GALEN A&P NU-110 EXAM 4 LATEST QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025 VERIFIED GRADED A+
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GALEN A&P NU-110 EXAM 4 LATEST QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025 VERIFIED GRADED A+ The Central Nervous System (CNS) Includes the brain and the spinal cord The Peripheral Nervous System (PNS) includes the nerves that connect the Central Nervous system with the rest of the body What...

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  • May 10, 2024
  • 25
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • galen ap nu 110 exam 4 latest questions with comp

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GALEN A&P NU-110 EXAM 4 LATEST QUESTIONS WITH

COMPLETE SOLUTIONS 2024/2025 VERIFIED GRADED A+


The Central Nervous System (CNS)

Includes the brain and the spinal cord

The Peripheral Nervous System (PNS)

includes the nerves that connect the Central Nervous system with the rest of the body

What are the 2 parts of nervous tissue

Glia Cells, and neurons.

Glia cell

are support cells of the brain

astrocytes, microglia, oligodendrocytes

Astrocytes

makes the blood brain barrier. Connects to blood vessels and acts as the gate keeper.

Does allot with metabolism, mostly of medication

Microglia

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

secretes allot of myelin. It is important for the neuron. Actually wraps around portions of

the neuron.

Myelin

,increases the speed of the neuron. It is the white matter of the brain and the spinal cord.

Neurons and Glia can grow back

but they grow back very slowly.

In the neuron information only travels

in one direction. That way there is no traffic jams or mixed signals.

Dendrites

where the information comes in to the neuron

Cell Body

houses the nucleus and other cell structures. Receives signal from the dendrites.

Axon

gets information from the cell body

Axon Terminals

Get information from the axon. Is where we release all of the neuron transmitters.

Not all neurons have ______ but those that do move information quickly

Myelin

Afferent Neurons

are sensory neurons. Carries information to the Central nervous system.

Interneurons

makes connections within the central nervous system.

Efferent Neurons.

Motor neurons. Carry information away from the Central nervous system and towards

the periphery.

Neurons and glia are all

, intermingled together

ActionPotential or Nerve impulse

is the electrical signal. Can only happen in the neuron

Neuron can only be in one of 3 states

Polarization, Depolarization, Repolarization

Polarization State.

is the resting State. The inside is more negative. Potassium is being moved out. and the

inside of the cell becomes more negative.

Depolarization

Is a stimulated neuron. The inside of the cell becomes more positive. There is allot of

Sodium to come into the cell.

Repolarization

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.

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.

The two cells that make myelin

are schwann cells and oligodendrocytes.

Schwann cell is located in the

peripheral nervous system. makes myelin

Oligodendrocytes

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