Central Nervous System Neuroglia Quiz

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What is the function of oligodendrocytes in the CNS?

Phagocytize and destroy microorganisms
Line cavities of brain and spinal cord
Surround the somas in ganglia
Form myelin in brain and spinal cord (correct)

What is the main function of microglia in the CNS?

Phagocytize and destroy microorganisms, foreign matter, and dead nervous tissue (correct)
Cover brain surface and nonsynaptic regions of neurons
Form neurilemma around all PNS nerve fibers and myelin around most of them
Surround the somas in ganglia

Where do ependymal cells primarily function?

Form myelin in brain and spinal cord
Surround the somas in ganglia
Cover brain surface and nonsynaptic regions of neurons
Line cavities of brain and spinal cord; secrete and circulate cerebrospinal fluid (correct)

What is the role of Schwann cells in the PNS?

Form neurilemma around all PNS nerve fibers and myelin around most of them; aid in regeneration of damaged nerve fibers; provide electrical insulation and regulate chemical environment of neurons (D) Signup and view all the answers

What is the primary function of astrocytes in the CNS?

Cover brain surface and nonsynaptic regions of neurons; form supportive framework in CNS; induce formation of blood–brain barrier; nourish neurons; produce growth factors that stimulate neurons; communicate electrically with neurons and may influence synaptic signaling; remove K+ and some neurotransmitters from ECF of brain and spinal cord; help to regulate composition of ECF; form scar tissue to replace damaged nervous tissue (B) Signup and view all the answers

What is the primary function of ependymal cells in the CNS?

Line cavities of brain and spinal cord; secrete and circulate cerebrospinal fluid (A) Signup and view all the answers

What is the primary role of Schwann cells in the PNS?

Form neurilemma around all PNS nerve fibers and myelin around most of them; aid in regeneration of damaged nerve fibers; provide electrical insulation and regulate chemical environment of neurons (B) Signup and view all the answers

What is the main function of microglia in the CNS?

Phagocytize and destroy microorganisms, foreign matter, and dead nervous tissue (A) Signup and view all the answers

What is the function of oligodendrocytes in the CNS?

Form myelin in brain and spinal cord (A) Signup and view all the answers

What is the primary function of astrocytes in the CNS?

Cover brain surface and nonsynaptic regions of neurons; form supportive framework in CNS; induce formation of blood–brain barrier; nourish neurons; produce growth factors that stimulate neurons; communicate electrically with neurons and may influence synaptic signaling; remove K+ and some neurotransmitters from ECF of brain and spinal cord; help to regulate composition of ECF; form scar tissue to replace damaged nervous tissue (B) Signup and view all the answers