. Electrolytes in biological systems, incorporating papers presented at a symposium at the Marine Biological Laboratory in Woods Hole, Massachusetts, on September 8, 1954. Electrophysiology; Electrolytes; Electrolytes; Electrophysiology; Physiology, Comparative. 230 ELECTROLYTES IN BIOLOGICAL SYSTEMS Certainly the outermost layers, which become cornified, must be considered as being composed of cells of low metabolism. The structures which one would suspect mostly as those involved in active transport are the epithelial cells of the stratum germinativum which are lined up in only one or two ro
. Electrolytes in biological systems, incorporating papers presented at a symposium at the Marine Biological Laboratory in Woods Hole, Massachusetts, on September 8, 1954. Electrophysiology; Electrolytes; Electrolytes; Electrophysiology; Physiology, Comparative. 230 ELECTROLYTES IN BIOLOGICAL SYSTEMS Certainly the outermost layers, which become cornified, must be considered as being composed of cells of low metabolism. The structures which one would suspect mostly as those involved in active transport are the epithelial cells of the stratum germinativum which are lined up in only one or two rows. A few preliminary measurements on skin of Rana pipiens have given the. Fig. i6. Eleclronmicroscopic view of frog skin. Arrow points to the 'Basement membrane'. Rana teinporaria (56). (Reproduced from original prints by courtesy of Prof. Dr. F. S. Sjoe- strand, Stockholm.) following information: i gm of skin represents, on an average, an area of about 45 cm-. The thickness of the total fresh skin lies between and mm. Plani- metric measurements showed that, in the average cross section of fixed skin of the leg, the area occupied by all the epithelial cells of the epidermis represents about one fourth of the total cross-sectional area of the skin. For the area of epithelial cells of the stratum germinativum, this figure is of the order of one eleventh. Similarly approximate values were obtained for the epithelium of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Shanes, Abraham M. (Abraham Morris), 1917-; Society of General Physiologists. Washington, American Physiological Society
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