The axons and dendrites that are coated with a myelin sheath are called ( ).
A: Neurite
B: Nerve
C: Nerve ending
D: Nerve fiber
A: Neurite
B: Nerve
C: Nerve ending
D: Nerve fiber
举一反三
- Oligodendrocytes make myelin, a fatty substance that insulates nerve axons and speeds the conduction of impulses along nerve fibers.
- Through which of the following structure does nerve fibers conduct nerve impulses? A: Myelin sheath B: Axolemma C: Neurofilament D: Synaptic vesicle
- The submandibular ganglion contains preganglionic parasympathetic axons from which cranial nerve? A: oculomotor nerve B: trigeminal nerve C: facial nerve D: hypoglossal nerve E: vagus nerve
- In the CNS, the myelin sheath of the nerve is formed by<br/>____________________?() A: Schwann cells B: astrocytes C: oligodendrocytes D: macroglia E: microglia
- Which cell forms the myelin sheath of myelinated nerve fibers in the peripheral nervous system? A: Astrocytes B: Microglia C: Oligodendrocytes D: Schwann cells