glial cells Flashcards
(6 cards)
1
Q
astrocytes
A
CNS
- provide supporting network in brain by forming complete lining around external surface of brain and blood vessels in CNS
- contribute to blood-brain barrier by regulating transmission of substances
- form scars around dead brain tissue
2
Q
oligodendrocytes
A
CNS
forms myelin sheaths around axons in CNS
3
Q
microglia
A
CNS
travels to site of lesion and engulfs cellular debris and removes it
4
Q
ependymal cells
A
CNS
forms permeable lining of brain and spinal cord
5
Q
schwann cells
A
PNS
- forms myelin sheaths around axons in PNS
- constitutes fibrous connective tissue around fibers in PNS
6
Q
satellite cells
A
PNS
- provide supporting network in brain by forming complete lining around external surface of brain and blood vessels in PNS
- contribute to blood-brain barrier by regulating transmission of substances
- form scars around dead brain tissue
