Karaganov Ia L, Romanov N N
Arkh Anat Gistol Embriol. 1979 Jan;76(1):35-43.
Regularities in structural rearrangement of epithelium of blood capillaries in the rat parotid salivary gland have been studied under various functional conditions of the organ. The data obtained demonstrate that secretion is accompanied by dilatation of anuclear segments of capillary endothelium, decreasing thickness of endotheliocytes, rise of hematocrit number by adding the total area of the capillary fenestrated surface, the form factor of intraendothelial contacts and decreasing length of the contacting cytolemmas. Since extreme values of the metrical parameters studied have been revealed during the phase of the secrete excretion, a suggestion is made that increasing hydraulic permeability of the metabolic vessels with subsequent transport of the fluid to the terminal parts of the gland create the conditions promoting to reach the threshold level of pressure in acini that is necessary to overcome high resistance of nerrow intercalated sections for the secretion to reach the ducts.
在大鼠腮腺的各种功能状态下，研究了其血毛细血管上皮结构重排的规律。所获得的数据表明，分泌过程伴随着毛细血管内皮无核段的扩张、内皮细胞厚度的减小、通过增加毛细血管窗孔表面的总面积使血细胞比容值升高、内皮细胞间接触的形态因子以及接触细胞膜长度的减小。由于在分泌排出阶段发现了所研究的测量参数的极值，因此有人提出，代谢血管水力通透性的增加以及随后液体向腺体末端部分的运输，创造了促进腺泡中压力达到阈值水平的条件，而这是克服狭窄闰管的高阻力以使分泌到达导管所必需的。
