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Dear student,
Neuroglial cell are supporting cells in the central nervous system.
Neuroglial cells are of two types:-
i) Macroglial cell :- They are ectodermal in origin.
ii) Microglial cell:- They are mesodermal in origin. They are macrophages to protect the central nervous system.
Types of macroglial cells
a) Astrocytes:- These cells are found in the central nervous system and form the blood brain barrier by projections which connect blood with the neurons.
b) Oligodendrocytes:- These cells cover axons in the central nervous system and forms myelin sheath.
c) Ependymal cells:- These cells are found in the central nervous system and line the spinal cord and ventricular system. They create and secrete cerebrospinal fluid and forms blood -CSF barrier.
d) Radial glia:- These cells are the progenitors of neuronal cells.
e) Schwann cells:- These cells forms myelin sheath of the axon in peripheral nervous system.
f) Satellite cells:- They regulate the concentrations of outside chemical. Example astrocytes shows response to ATP by increased concentration of calcium ion.
Regards
Neuroglial cell are supporting cells in the central nervous system.
Neuroglial cells are of two types:-
i) Macroglial cell :- They are ectodermal in origin.
ii) Microglial cell:- They are mesodermal in origin. They are macrophages to protect the central nervous system.
Types of macroglial cells
a) Astrocytes:- These cells are found in the central nervous system and form the blood brain barrier by projections which connect blood with the neurons.
b) Oligodendrocytes:- These cells cover axons in the central nervous system and forms myelin sheath.
c) Ependymal cells:- These cells are found in the central nervous system and line the spinal cord and ventricular system. They create and secrete cerebrospinal fluid and forms blood -CSF barrier.
d) Radial glia:- These cells are the progenitors of neuronal cells.
e) Schwann cells:- These cells forms myelin sheath of the axon in peripheral nervous system.
f) Satellite cells:- They regulate the concentrations of outside chemical. Example astrocytes shows response to ATP by increased concentration of calcium ion.
Regards