| Santorini's incisures | (usually) two vertical fissures in the anterior portion of the cartilage of the external auditory meatus, filled by fibrous tissue. Synonym: incisurae cartilaginis meatus acustici externi, Duverney's fissures, incisurae santorini, Santorini's fissures, Santorini's incisures. (05 Mar 2000) |
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| Schmidt-Lanterman incisures | Funnel-shaped interruptions in the regular structure of the myelin sheath of nerve fibres, formerly interpreted as actual breaks in the sheath but shown by electron microscopy to correspond each to a strand of cytoplasm locally separating the two otherwise fused oligodendroglial (or, in peripheral nerves, Schwann cell) membranes composing the myelin sheath. Synonym: Lanterman's incisures, Schmidt-Lanterman clefts. (05 Mar 2000) |
| Lanterman's incisures | Funnel-shaped interruptions in the regular structure of the myelin sheath of nerve fibres, formerly interpreted as actual breaks in the sheath but shown by electron microscopy to correspond each to a strand of cytoplasm locally separating the two otherwise fused oligodendroglial (or, in peripheral nerves, Schwann cell) membranes composing the myelin sheath. Synonym: Lanterman's incisures, Schmidt-Lanterman clefts. (05 Mar 2000) |
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