单词 | langerhans granules |
释义 | > as lemmasLangerhans granules Used attributively, in the possessive, and with of-adjunct to designate a kind of dendritic or stellate cell found in the epidermis and characterized by the presence of cytoplasmic granules ( Langerhans granules). (See also islet of Langerhans at islet n. 2b). ΚΠ 1890 J. S. Billings National Med. Dict. II. 32/1 Langerhans' cells, stellate cells found in deeper layers of epidermis, apparently related to nerve terminations. 1934 E. V. Cowdry Textbk. Histol. xxix. 449 Cells of the third category are called melanoblasts (Langerhans, stellate or dendritic cells) because they are supposed to form melanin. 1953 Philos. Trans. (Royal Soc.) B. 237 162 This technique..led to the erroneous conclusion that the cells of Langerhans occur in the basal layer. 1953 Philos. Trans. (Royal Soc.) B. 237 162 Langerhans' cells are invariably unpigmented. 1965 Jrnl. Investigative Dermatol. 44 202/2 The characteristic granules within the Langerhans cell are shaped like a tennis racket... The number, as well as the size, of the Langerhans granules is..variable. 1965 Jrnl. Investigative Dermatol. 45 403/1 The capability of Langerhans cells to synthesize melanin remains to be proven. 1969 S. Bradbury Hewer's Textbk. Histol. (ed. 9) xvii. 237 It was at one time thought that the Langerhans cells were effete melanocytes, but they have been shown to be active in the uptake of tritiated thymidine and their E/M appearance suggests also that they are active cells. Their function is still unknown. < as lemmas |
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