- Hertwig's sheath
Medical dictionary. 2011.
Hertwig's sheath
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sheath of Hertwig — sheath of Hert·wig hert .vig n a two layered epithelial wall that covers the developing root of a tooth, is derived from cells of the enamel organ, and later breaks up during the process of cement deposition called also Hertwig s sheath Hert·wig… … Medical dictionary
Hertwig sheath — sheath of Hertwig root s. (def. 1) … Medical dictionary
Hertwig's epithelial root sheath — The Hertwig s epithelial root sheath (frequently abbreviated as HERS ) is a proliferation of epithelial cells located at the cervical loop of the enamel organ in a developing tooth. Hertwig s epithelial root sheath initates the formation of… … Wikipedia
Hertwig sheath — Hert·wig sheath (hertґvik) [Richard Carl Wilhelm Theodor von Hertwig, German zoologist, 1850–1937] root sheath (def. 1) … Medical dictionary
sheath — 1. Any enveloping structure, such as the membranous covering of a muscle, nerve, or blood vessel. Any sheathlike structure. SYN: vagina (1). 2. The prepuce of male animals, especially of the horse. 3. A specially designed tu … Medical dictionary
Hertwig — Wilhelm A.O., German embryologist, 1849–1922. See H. sheath. Richard, German zoologist, 1850–1937. See Magendie H. sign, Magendie H. syndrome … Medical dictionary
Gaine épithéliale de Hertwig — Fichier:HERS.png (1) GEH, (2) restes cellulaires épitheliaux de Malassez, (3) follicule dentaire, (4) céementoblastes, (5) ligament alvéolo dentaire, (6) cellules alveolaires, (7) os, (8) odontoblastes. La gaine épithéliale de Hertwig (GEH) ou… … Wikipédia en Français
root sheath — n the epidermal lining of a hair follicle * * * 1. an epithelial extension of the cervical loop of the enamel organ, consisting of the inner and outer enamel epithelium, and directing the number and morphological growth of the roots. It is… … Medical dictionary
rest — 1. Quiet; repose. [A.S. raest] 2. To repose; to cease from work. [A.S. raestan] 3. A group of cells or a portion of fetal tissue that has become displaced and lies embedded in tissue of another character. [L. restare, to remain] 4. In dentistry,… … Medical dictionary
Tooth development — Radiograph of lower right (from left to right) third, second, and first molars in different stages of development. Tooth development or odontogenesis is the complex process by which teeth form from embryonic cells, grow, and erupt into the mouth … Wikipedia
