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Neurons and Neuroglia

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Neuroglia
support, insulate and protect the neurons
Astrocytes
compose half of all nervous tissue.
Star shaped; Cling to neurons and bring them blood supply
Microglia
spider-like phagocytes that dispose of cellular debris and bacteria
Ependymal Cells
line the CNS cavities. Contain cilia that move CSF around.
Oligodendrocytes
produce the fatty coverings around neurons called myelin sheaths, that insulate the neurons.
Schwann Cells
form myelin sheaths around neurons. Ex) oligodendrocytes
Satellite Cells
protect, nourish and cushion neurons Ex) astrocytes, microglia and ependymal cells
Neurons
The cells of the nervous system; They transmit impulses from one part of the body to another.
Cell Body
metabolic center of the cell; contains the nucleus and organelles.
Axon
an extension of the cell body that carries impulses away from the cell body.
Axon Terminal
the end of an axon; where it meets a dendrite, muscle or gland
Dendrite
an extension of the cell body that carries impulses towards the cell body.
Myelin Sheath
the fatty insulation that surrounds and protects an axon.
Synapse
the gap between the axon termial and the muscle, gland, organ or neuron that it meets.
Interneurons
neurons that reside within the spinal cord and connect sensory and motor neurons to each other.
Neuroglia
Support insulate and protect cells
Neuron
Demonstrate irritability and conductivity, and thus transmit electrical messages from one are of the body to another area
Neuron
Release neurotransmitters
Neuron
Are amitotic
Neuroglia
Able to divide; therefore are responsible for most brain neoplasms