part 2 Flashcards

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1
Q

concept of neuroglial cells

A

a,k,a, glial cells. Specialized cells found in the brain and spinal cord supporting the neurons

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2
Q

glial cell: astrocyte

A

found in CNS. they provide mechanical support and repair of damaged areas

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3
Q

glial cell: microglial cell

A

found in CNS. engulf and destroy microbes and cell debris

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4
Q

how is microglial cell different from other cells

A

all the nervous system is made of ectoderm, except the microglial cells, they are mesodermal in origin

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5
Q

glial cells: oligodendrocytes

A

found in CNS. form myelin sheath around the axon

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6
Q

glial cells: Schwann cells

A

found in PNS. forms myelin sheath around the axon

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7
Q

myelinated neurons

A

enveloped with Schwann cells which form a myelin sheath around the axon . gaps between two adjacent myelin sheaths are called nodes of Ranvier

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8
Q

unmyelinated neurons

A

enveloped with Schwann cells that does not form a myelin sheath around the axon. the Schwann cell sheath is called Neurilemma

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