Quiz: Neuroglia

1. The axons of some neurons in the CNS are protected by glial cells that form a myelin sheath around the axons. These glial cells are called __________.
a. microglia
b. astrocytes
c. oligodendrocytes
2. What is the name of the glial cells that act as phagocytes to aid in protecting CNS neurons?
a. microglia
b. astrocytes
c. oligodendrocytes
3. Which of the following statements is true?
a. Neurolemmocytes form a myelin sheath around axons in the peripheral nervous system, and oligodendrocytes form a myelin sheath around axons in the central nervous system.
b. Astrocytes form a myelin sheath around axons in both the peripheral nervous system and the central nervous system.
c. Schwann cells are the same as oligodendrocytes, and they both act as phagocytic cells to provide protection for the neuron.
4. There are two types of glial cells found in the peripheral nervous system. Which of the following is found in the peripheral nervous system?
a. ependymal cells
b. neurolemmocytes (Schwann cells)
c. oligodendrocytes
5. The myelin sheath (formed by neurolemmocytes) wrap around the __________ of a neuron to provide protection and insulation.
a. axon
b. soma
c. dendrite

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