. A text-book in general physiology and anatomy. Physiology, Comparative; Anatomy. 360 EXCRETION new cells, constantly increases the length of the nail. At the same time the dermis just beneath the bed of the nail forms new cells which add to its thickness. The matrix. Fig, 166—Sections of nails. A, median longitudinal section (X 4); <J) the fold at the base of the nail; b, the nail; c, the bed of the nail. B, transverse section ( X 4); a, lateral folds on each side of the nail; 6, the nail; c, bed of nail showing papillte. C, portion of bed of nail (X 200); e, nail, formed of horny dermal
. A text-book in general physiology and anatomy. Physiology, Comparative; Anatomy. 360 EXCRETION new cells, constantly increases the length of the nail. At the same time the dermis just beneath the bed of the nail forms new cells which add to its thickness. The matrix. Fig, 166—Sections of nails. A, median longitudinal section (X 4); <J) the fold at the base of the nail; b, the nail; c, the bed of the nail. B, transverse section ( X 4); a, lateral folds on each side of the nail; 6, the nail; c, bed of nail showing papillte. C, portion of bed of nail (X 200); e, nail, formed of horny dermal scales; d, deep layers of epidermis; c, papillse. may be compared to the hair papilla, and injury to hair or nail will be repaired so long as the hair papilla or the nail matrix is uninjured. The nail shows the following areas: The part embedded in the dermal pocket is called 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 Eddy, Walter Hollis, b. 1877. New York, Cincinnati [etc. ] American book Co
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