A MICROPUNCTURE INVESTIGATION OF CATION CONTENT AND OSMOLALITY OF COLLOID FROM SINGLE RAT THYROID ACINI

被引：17

作者：

SHAGRIN, J

YOUNG, JA

机构：

[1] Department of Physiology, University of Sydney, 2006, N.S.W.

来源：

PFLUGERS ARCHIV-EUROPEAN JOURNAL OF PHYSIOLOGY | 1969年 / 307卷 / 03期

关键词：

Micropuncture; Osmolality; Potassium; Sodium; Thyroid Follicles;

D O I：

10.1007/BF00592085

中图分类号：

Q4 [生理学];

学科分类号：

071003 ;

摘要：

Renal micropuncture techniques have been used to study the composition of the follicular secretion from single thyroid acini in the rat. Analysis of the secretion showed: I. The follicle contents were maintained hyperosmotic to plasma by about 21 mOsm/kg H2O, representing a hydrostatic pressure of about 365 mm Hg. II. The mean potassium concentration (15.6 mEq/litre) was significantly greater than in plasma. III. The mean sodium concentration (160 mEq/litre) was similar to that in plasma but showed a very wide scatter. Potassium appeared to have been concentrated in the lumen against an electro chemical gradient, since it is known that the trans-epithelial potential difference in the rat thyroid acinus is zero. © 1969 Springer-Verlag.

引用

页码：204 / &

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