[Structure of the palisade nerve fibers of the sinuous hair after cutting the infraorbital nerve].
The state of the palisade neural fibers (PNF) in the connective tissue of the internal follicle of the cat sinuous hair has been studied after the infraorbital nerve had been cut. Denervation of the sinuous hair is demonstrated to result in certain destructive changes in the PNF. Two days after the operation, cytoplasm becomes more dense, mitochondria undergo destruction, large vacuoles appear in the neural terminals. In the receptory specialized cells, as well as in the neural fiber lemmocytes, the number of the large vacuoles increases, electron opaque bodies appear. On the 7th day after the operation maximal destructive changes are noted. In 30 days after cutting the nerve, regeneration of the neural fibers, the PNF including, begins. In this connection the fate of the specialized cells after destruction of the receptor and their participation in the regenerative process is discussed. The data obtained demonstrate that there are some important functional connections between the axons and the specialized PNF cells. This is necessary to maintain the differentiated state of the receptor in question.
D000818:Animals; D002415:Cats; D003714:Denervation; D006197:Hair / Q000648:ultrastructure*; D008465:Mechanoreceptors / Q000648:ultrastructure*; D009410:Nerve Degeneration; D009416:Nerve Regeneration; D009915:Orbit / Q000294:innervation*
Struktura palisadnykh nervnykh volokon sinuoznykh volos posle pererezki podglaznichnogo nerva.