| 释义 |
Nasmyth's membrane Anat.|ˈneɪsmɪθ|
[f. the name of Alexander Nasmyth (d. 1848), British dentist, who described the membrane in 1839.]
A transient membrane covering the crown of young teeth; the primary enamel cuticle.
1853Q. Jrnl. Microsc. Sci. I. 162 The layer is about 1-40th of an inch thick, and consists of an external delicate structureless Nasmyth's membrane. 1906Brit. Dental Jrnl. XXVII. 1017 The interest at the time was centred on the condition of its Nasmyth's membrane. 1973Gray's Anat. (ed. 35) 1235/2 The newly erupted enamel is covered by a two-layered structure (reduced enamel epithelium and primary cuticle). This is called Nasmyth's membrane. |