We studied to determine the relation between innervation and connective tissue ceells beneath the proximal tubules of renal cortex rabbit.
At subscapular cortex, nerve endings were not seen, but the type I and II of the pericyte were frequently seen. The type I of subcapsular cortex had a relative large pyramidal nucleus rich in euchromatin, paired centriloe, a few elongated
mitochondria,
relative developed Golgi apparatus, abundant vesicles, and a moderate number of free ribosomes. This pericyte
had long footlike process containing vesicles and free ribosomes.
At midcortex and inner cortex, the nerve ending surrounded with the process of the type I was seen. The nerve ending was directly out of contact with the basal lamina of proximal tubule.
Around the arteriole of the inner cortex, there is the nerve ending surrounded with cytoplasmic process, one process containing several rough endoplasmic reticulum, and the other process had secreting vesicles in the vicinity of the basal lamina
of
the
proximal bubule. Aroud the capillaries of renal cortex, the type II was seen and the nerve ending was directly contacted with basal lamina of the capillary. This type I had a triangular euchromatic nucleus and poor-developed cytoplasmic
organelles.
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