| basement lamina | <cell biology> Extracellular matrix characteristically found under epithelial cells. There are two distinct layers: the basal lamina, immediately adjacent to the cells, is a product of the epithelial cells themselves and contains collagen type IV and the reticular lamina is produced by fibroblasts of the underlying connective tissue and contains fibrillar collagen. (15 Nov 1997) |
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| basilar lamina | A thin layer of tissue covered with mesothelial cells that separates the cochlea from the scala tympani in the ear. (18 Nov 1997) |
| boundary lamina | A basement membrane-like structure that invests muscle cells, fat cells, and Schwann cells. See: basement membrane, basal lamina. (05 Mar 2000) |
| vascular lamina of choroid | <anatomy> The outer portion of the choroid of the eye containing the largest blood vessels. Synonym: lamina vasculosa choroideae, Haller's vascular tissue, uvaeformis, vascular layer of choroid coat of eye, vascular layer. (05 Mar 2000) |
| vestibular lip of limbus of spiral lamina | vestibular labium of limbus of spiral lamina |
| medial lamina of cartilaginous auditory tube | The broad medial portion of the cartilaginous part of the auditory tube. Synonym: lamina medialis cartilaginis tubae auditivae, lamina cartilaginis medialis tubae auditivae, medial cartilaginous layer, medial layer of cartilaginous auditory tube. (05 Mar 2000) |
| medial medullary lamina of corpus striatum | A fibre layer separating the medial and lateral segments of the globus pallidus. Synonym: lamina medullaris medialis corporis striati. (05 Mar 2000) |
| reticular lamina | A major component of the basement membrane, as seen by light microscopy; it consists largely of reticular fibres and ground substances. (05 Mar 2000) |
| membranous lamina of cartilaginous auditory tube | The connective tissue membrane that, with the lateral lamina, completes the lateral and inferior walls of the cartilaginous part of the auditory tube. Synonym: lamina membranacea cartilaginis tubae auditivae, membranous layer. (05 Mar 2000) |
| periclaustral lamina | A thin lamina of white substance separating the claustrum from the putamen. It joins the internal capsule at either extremity of the putamen, forming a capsule of white matter external to the lenticular nucleus. Synonym: capsula externa, periclaustral lamina. (05 Mar 2000) |
| rostral lamina | A whitish line appearing on perfectly median sections of the brain as a thin bridge connecting the rostrum of the corpus callosum with the lamina terminalis; the rostral lamina contains no commissural fibres; instead, it corresponds to the line along which the pia mater reflects from the medial surface of one hemisphere to that of the other. Synonym: lamina rostralis, rostral layer, teniola corporis callosi. (05 Mar 2000) |
| cribrous lamina | The portion of the sclera through which pass the fibres of the optic nerve. Synonym: cribrous lamina, perforated layer of sclera. (05 Mar 2000) |
| hamulus of spiral lamina | The upper hooklike termination of the bony spiral lamina at the apex of the cochlea. Synonym: hamulus laminae spiralis, hamulus cochleae, hook of spiral lamina. (05 Mar 2000) |
| primary dental lamina | dental ledge |
| secondary spiral lamina | A ridge on the outer wall of the first turn of the cochlea opposite the spiral lamina. Synonym: lamina spiralis secundaria, secondary spiral plate. (05 Mar 2000) |