Question

In: Anatomy and Physiology

Match the best response with the following statements: Mesoderm derived à Association with choroid plexus à...

Match the best response with the following statements:

Mesoderm derived à

Association with choroid plexus à

AP propagation in the PNS à

Extracellular fluid regulation à

Macrophages à

CNS myelination à

CSF production à

Blood brain barrier à

Neurolemmocytes à

Phagocytosis à

Ependymal cells
Microglial cells
Schwann cells
Astrocytes
Oligodendrocytes

Expert Solution

Astrocyte,Microglia,oligodendrocytes are central neuroglial cells.

Astrocytes are star shaped neuroglial cells present in all parts of brain.2 types_A.fibrous astrocyte-important role in formation of blood brain barrier along with vessels forming tight junctions._B.protoplasmic astrocyte-maintain chemical environment of ECF around CNS neurons.

Microglia are smallest neuroglial cells.These are derived from monocytes and enter tissues of nervous system from blood(medodermal in origin).These are phagocytic cells migrate to the site of infection or injury and are often called the macrophages of CNS.

Oligodendrocytes are the neuroglial cells which produce myeline seath around the nerve fibres in CNS(schwann cells absent).

Schwann cells are major glial cells in PNS.Provide myelination around nerve fibres in PNS.Play major role in nerve regeneration.and remove cellular debris during regeneration by their phagocytic activity.Neurilemoma is a disease concerned with these cells.

CSF is a clear fluid that circulates through ventricles,subarachnoid space and central canal.It is part of ECF.

CSF is formed by choroid plexuses,situated within the ventricles.Ependymal cells are the covering of ventricles and choroid plexuses.

Thus_ependymal cells-associated with choroid plexus,CSF production.

_microglial cell-Mesoderm derived,Macrophage,phagocytosis.

_schwann cell-Action potential propagation in PNS,Neurolemmocytes.

_oligodendrocytes-CNS myelination,

_Astrocytes- Blood brain barrier,ECF regulation.

Sydney Mullin answered 1 year ago

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