Αποτελέσματα Αναζήτησης
3 Οκτ 2024 · The nail is a platelike, keratinous, translucent structure that consists of highly specialized epithelial cells. The nail grows from a deep groove in the dermis of the skin. All nail growth occurs at the nail’s base, where the specialized cells that make up the nail’s plate are produced; these cells are pushed forward as new cells form ...
The nail is inserted proximally in an invagination practically parallel to the upper surface of the skin and laterally in the lateral nail grooves. This pocket-like invagination has a roof, the proximal nail fold and a floor, the matrix from which the nail is derived.
This chapter reviews the embryology and development, anatomy and cell biology, physiology, biochemistry, biophysics, and pharmacology of the nail unit.
29 Απρ 2017 · The nail plate sinks at an acute angle into a large deep groove, practically parallel to the cutaneous surface, the nail cul-de-sac (or posterior or proximal groove) (Fig. 1). The lateral nail grooves complete the bezel of the nail.
28 Σεπ 2024 · A nail is a hard, keratinized structure found at the tips of the fingers and toes in humans and many other animals. Composed primarily of the protein keratin, nails grow from the nail matrix, which is located beneath the cuticle.
Development starts in the ninth week of embryogenesis with the differentiation of a nail field composed of a histologically distinguishable epithelium, with a thickness of from one to several cells, delineated by the circumferential grooves (the proximal, distal, and lateral grooves).
2 Σεπ 2024 · What are nail grooves / depressions and what causes them? The condition renders to the changes in the nail matrix and nail bed, which can be damaged or affected chemically, biologically or mechanically.
