Neuroglia of the CNS UPDATED ACTUAL Questions and CORRECT
Answers
1. name four types Astrocytes, oligodendrocytes, microglia and ependymal cells.
of neuroglia
2. Astrocytes controlling interstitial environment, maintaining the blood brain barrier, creating
(largest amount three dimensional framework for CNS, performing repairs in damaged neural
of glial cells) tissues and guides neuron development.
3. Astrocytes func- large amounts of cytoplasmic processes which increase surface area, which facili-
tions: Controlling tate scavenging of ions, neurotransmitters or metabolic by-products. Exchange of
interstitial envi- ions and etc. with extracellular fluid enables astrocytes to control chemical content
ronment of interstitial environment of CNS.
4. Astrocytes func- neural tissue is physically and biochemically isolated from general circulation.
tions: Maintain- hormones or other chemicals in blood can disrupt neuron function. Endothelial
ing blood brain cells lining CNS capillaries are responsible for blood brain barrier. Control chemical
barrier exchange between blood and interstitial fluid. Cytoplasmic blanket only interfered
when other glial cells contact capillary walls.
5. Astrocytes func- Astrocytes are packed with microfilaments that extend across the breadth of the
tions: Creating cell=mechanical strength and astrocytes form structural framework supporting
3 dimensional neurons of brain and spinal cord.
framework for
CNS
6. Astrocytes func- astrocytes make structural repairs that stabilize tissue and prevent further injury via
tions: Performing scar tissue.
repairs in dam-
aged neural tis-
sue
7. Astrocytes func- in embryonic brain, astrocytes are involved in directing growth and interconnection
tions: Guiding of developing neurons via secretion of chemicals called neurotropic factors.
Answers
1. name four types Astrocytes, oligodendrocytes, microglia and ependymal cells.
of neuroglia
2. Astrocytes controlling interstitial environment, maintaining the blood brain barrier, creating
(largest amount three dimensional framework for CNS, performing repairs in damaged neural
of glial cells) tissues and guides neuron development.
3. Astrocytes func- large amounts of cytoplasmic processes which increase surface area, which facili-
tions: Controlling tate scavenging of ions, neurotransmitters or metabolic by-products. Exchange of
interstitial envi- ions and etc. with extracellular fluid enables astrocytes to control chemical content
ronment of interstitial environment of CNS.
4. Astrocytes func- neural tissue is physically and biochemically isolated from general circulation.
tions: Maintain- hormones or other chemicals in blood can disrupt neuron function. Endothelial
ing blood brain cells lining CNS capillaries are responsible for blood brain barrier. Control chemical
barrier exchange between blood and interstitial fluid. Cytoplasmic blanket only interfered
when other glial cells contact capillary walls.
5. Astrocytes func- Astrocytes are packed with microfilaments that extend across the breadth of the
tions: Creating cell=mechanical strength and astrocytes form structural framework supporting
3 dimensional neurons of brain and spinal cord.
framework for
CNS
6. Astrocytes func- astrocytes make structural repairs that stabilize tissue and prevent further injury via
tions: Performing scar tissue.
repairs in dam-
aged neural tis-
sue
7. Astrocytes func- in embryonic brain, astrocytes are involved in directing growth and interconnection
tions: Guiding of developing neurons via secretion of chemicals called neurotropic factors.
