lamina

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Related to Lamina cribrosa: lamina cribrosa sclerae

lam·i·na

 (lăm′ə-nə)
n. pl. lam·i·nae (-nē′) or lam·i·nas
1. A thin plate, sheet, or layer.
2. Botany
a. The expanded area of a leaf or petal; a blade.
b. The bladelike part of a kelp.
3. A thin layer of bone, membrane, or other tissue.
4. Zoology A thin scalelike or platelike structure, as one of the thin layers of sensitive vascular tissue in the hoof of a horse.
5. Cytology A thin layer inside the nuclear membrane of a cell that is composed of a meshlike network of protein fibers.
6. Geology A narrow bed of rock.

[Latin lāmina.]

lam′i·nar, lam′i·nal adj.

lamina

(ˈlæmɪnə)
n, pl -nae (-ˌniː) or -nas
1. a thin plate or layer, esp of bone or mineral
2. (Geological Science) a thin plate or layer, esp of bone or mineral
3. (Anatomy) a thin plate or layer, esp of bone or mineral
4. (Botany) botany the flat blade of a leaf, petal, or thallus
[C17: New Latin, from Latin: thin plate]
ˈlaminar, ˈlaminary, laminose, laminous adj

lam•i•na

(ˈlæm ə nə)

n., pl. -nae (-ˌni)
-nas.
1. a thin plate or layer.
2. a thin layer or coating lying over another, as in certain minerals.
3. the blade or expanded portion of a leaf.
[1650–60; < Latin lāmina]

lam·i·na

(lăm′ə-nə)
1. Botany The expanded area of a leaf or petal; a blade.
2. A thin layer of bone, membrane, or other tissue.
3. Geology A thin layer of sediment.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.lamina - a thin plate or layer (especially of bone or mineral)lamina - a thin plate or layer (especially of bone or mineral)
lamina arcus vertebrae - lamina of the vertebral arch; the flattened posterior part of the vertebral arch from which the spinous process extends
plate - any flat platelike body structure or part

lamina

noun
A thin outer covering of an object:
Translations
lemezlevéllemez
lamina

lam·i·na

n. L. lámina, placa o capa fina;
___ arcus vertebrae___ del arco vertebral;
___ basalis choroidae___ basal de la coroide;
___ limitans anterior corneae___ elástica anterior de la córnea;
___ limitans posterior corneae___ elástica posterior de la córnea;
___ multiform of cerebral cortex___ multiforme de la corteza cerebral.
References in periodicals archive ?
The enucleated globe (in those cases where it was available) and the histopathological slide in all patients were reviewed by a pathologist and paediatric oncologist at SJMCH and KMIO, for presence of histopathological risk factors like choroidal invasion, iris infiltration, scleral extension, optic nerve invasion posterior to lamina cribrosa and involvement of cut end of optic nerve by tumour cells.
Many African-Caribbean/African Americans have thin corneas, which may mean their lamina cribrosa meshwork which supports delicate axons is thinner and flexes more with changes in IOP.
In glaucoma, acquired optic disc pits form due to localized depressions in the lamina cribrosa resulting from neuroretinal rim loss.
28) Clear round to oval spaces are seen on both sides of the lamina cribrosa, ranging in size from several micrometers to roughly 15 micrometers (Figure 6).
These factors include impaired ocular and retro bulbar perfusion, abnormalities of elastic tissues of lamina cribrosa, increased protein concentration of aqueous humour, pronounced melanin deposition and exfoliation material itself.
Inferior length of IAM: the distance from the inferior margin of the porus to the most lateral point of the fundus in the lamina cribrosa area for the inferior vestibular nerve.
CSF pressure is transmitted to the inner ear through a patent cochlear aqueduct and lamina cribrosa of the internal auditory canal.
5mmHg, creating an upward pressure gradient; this results in a temporary stasis of blood within the venous system at the lamina cribrosa (seen as venous engorgement in SVP).
Acquired optic disc pits, a finding specific to glaucomatous optic nerve (ON) head damage, develop in association with localized depressions in the lamina cribrosa (LC).
27) Apart from the obstruction to the trabecular outflow, increased aqueous protein levels, an impaired ocular and retrobulbar perfusion and disorder of elastic tissue of lamina cribrosa have also been proposed as the mechanism of glaucoma in pseudo exfoliative patients.
It was sectioned in such a way that a total of 5 blocks were submitted: block 1, the optic nerve cut margin (sampled in frozen section); blocks 2 and 3, the central pupil-optic nerve section containing the optic nerve head, lamina cribrosa, tumor, and anterior chamber structures in a single plane; and blocks 4 and 5, with the remainder of ocular tissue in anterior-posterior segments to examine more choroidal surface.