PERIPHERAL NERVOUS SYSTEM
NERVES – 6
NERVES – 6
Longitudinal sections of large nerves.
Observe in the upper figure two thick nerve fascicles, one in the upper portion of the figure and another occupying about 2/3 of the lower portion of the figure.
In the lower figure, at a higher magnification, observe the appearance of the fibers as a network. This is caused by the absence of myelin, which was dissolved when preparing the section.
It is not always easy to recognize and diagnose a longitudinally sectioned nerve. Sometimes it can be confused with smooth muscle tissue or dense regular connective tissue. In case of doubts, review these tissues in their chapters.
Nerve (longitudinal section). Staining: HE. Small magnification.
Nerve (longitudinal section). Staining: HE. Medium magnification.