Page 375 - Atlas of Histology with Functional Correlations

FIGURE 9.21 ■ Peripheral nervous system (PNS). The PNS is composed of the
cranial and spinal nerves. A cross section of the spinal cord is illustrated with the
characteristic features of the motor neuron and a cross section of a peripheral
nerve.

FIGURE 9.22 | Peripheral Nerves and Blood

Vessels (Transverse Section)

Bundles of nerve axons (fibers) or nerve fascicles (1) with blood vessels have
been sectioned in the transverse plane. Each nerve fascicle (1) is surrounded by a
sheath of connective tissue perineurium (5) that merges with surrounding

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