In the CNS, the myelin sheath of the nerve is formed by<br/>____________________?() A: Schwann cells B: astrocytes C: oligodendrocytes D: macroglia E: microglia

In peripheral nerve fibers, the sheath cell is A: Astrocytes B: Oligodendrocytes C: Satellite cells D: Ependymal cells E: Schwann cells

In<br/>peripheral nerve fibers, the sheath cell is () A: Astrocytes B: Oligodendrocytes C: Satellite cells D: Ependymal cells E: Schwann cells

Which is wrong about the nervous system? A: It’s mainly composed of nervous tissue B: It’s classified as central and peripheral nervous system C: Central nervous system includes brain, cranial nerve, spinal cord and spinal nerve D: Gray matter is the place where the somas of neurons are concentrated E: White matter contains no neuronal cell bodies

(multiple choices)About our nervous system, which options are correct? A: Our nervous system includes the central nervous system and the peripheral nervous system. B: The central nervous system is only the brain. C: The somatic nervous system is one part of the peripheral system. D: The autonomic nervous system can be divided into the sympathetic and the parasympathetic system.