(n.) a thin plate or scale of anything, as a thin scale growing from the petals of certain flowers; or one of the thin plates or scales of which certain shells are composed.
Example Sentences:
(1) When the aggregates occurred on the cell periphery their position coincided with areas free of lamellae.
(2) The findings indicate that these spaces were lined by a lipid monolayer which formed bilayered lamellae under certain conditions.
(3) The unique structure we describe is a cytoplasmic organelle which, like annulate lamellae, is closely associated with the endoplasmic reticulum and is presumed to be related to the genesis of rough-surfaced endoplasmic reticulum in tumor cells.
(4) New lamellae are formed by these cuboidal cells which then divide and migrate into the lamellae where they assume the characteristic attenuated appearance of fibroblasts in the adult dermal lamellae region.
(5) The antigen (a protein doublet of Mr 75,000-80,000) is present in, but not restricted to, the myelin lamellae, since it is distributed along the whole myelinating Schwann cell membrane.
(6) These data show that the 515 nm absorbance change is not limited to small closed vesicles like grana, but in the presence of suitable electron donors single lamellae of bundle sheath chloroplasts can also be active.
(7) Marginal channels at the tips of the lamellae are lined only by endothelial cells.
(8) The developing distal excretory duct possesses a septate junction and many branching and looping lamellae.
(9) The description of the structure of epithelial cells includes: 1) the endoplasmic reticulum and ribosomes, 2) mitochondria, 3) the nucleus, 4) the golgi complex and secretory bodies, 5) lysosomes, 6) annulate lamellae, 7) luminal surface, 8) basal surface, 9) lateral surface, and 10) the nucleolar channel system.
(10) After upward transposition of the anterior lamella, the excised skin is very suitable for covering the free tarsal surface.
(11) Two autoptic cases of chondroosteoplastic tracheopathy yielded features defining the lesion: continuous shrubby proliferation of the inner surface of tracheal cartilages developed bony lamellae in connection with cells of mucosa.
(12) Those to D1 arise within the dorsal lamella of the PO.
(13) Ultrastructural examination of central nervous tissue from two, perfusion-fixed, 6-month-old foxes showed intramyelin vacuoles resulting from splitting of the myelin lamellae at the intraperiod line and was interpreted as indicating myelin edema.
(14) Such Nissl bodies were composed primarily of several lamellae of granular endoplasmic reticulum with linear arrays of polyribosomes arranged between individual cisternae.
(15) Electron-microscopic examinations of liver biopsies showed various forms of lipoid storage: lipoid bodies with loose, membranous structures and bodies with dense, concentrically arranged lamellae.
(16) The inner layer accounts for the remaining quarter and also consists of lamellae the thread-like turns of which, however, run at a much higher pitch.
(17) CNP was always found only in the cytoplasm-containing compartments of the cells and myelin sheaths; neither lamellae nor cellular membranes were immunostained.
(18) The trabecular meshwork was collapsed and the lamellae showed thickened basement membranes and thickened sheaths of elastic-like material.
(19) The cautious study began with small extramarginal skin excisions and progressed gradually via moderate sized juxtamarginal excisions of skin and orbicularis lamella to full-thickness margin-inclusive excisions.
(20) The knowledge of the anterior adjacent lamellae of the throat is very important for surgery of the goiter and parathyroid glands.
Lamellar
Definition:
(a.) Flat and thin; lamelliform; composed of lamellae.
Example Sentences:
(1) No reaction product was observed in the lamellar areas.
(2) At consolidation, the distraction area was composed of lamellar trabecular and partly woven bone.
(3) The results indicate that synthesis of lamellar bodies depends on an intact microtubular system, whereas secretion requires actin filaments in a functional state.
(4) Lamellar inclusions were selectively found in the large axons.
(5) At recovery, 96 hours, the lungs contained twice the normal numbers of type II cells, but the total size of lamellar body compartment per type II cell as well as the DSPC content of the isolated lamellar body pool returned to normal levels.
(6) The astrocytes had generally two types of processes: (1) thread-like processes of relatively constant width with few ramifications and few lamellar appendages and (2) the sinuous processes with clusters of lamellar appendages.
(7) The cortical vitreous of the normal (control) eye appeared to be a lamellar structure composed of sheets of collagen mesh.
(8) The results obtained in congenital ichthyosiform erythroderma, lamellar ichthyosis, and Papillon-Lefèvre syndrome were judged as better than those usually reported with etretinate.
(9) Intralipid at a concentration of 10(-2%) produced a significant increase of the relative volume of lamellar bodies (P = 0.05) at a gestational age of 18 weeks.
(10) In contrast, SP-A was identified in two populations of vesicles with high phospholipid-to-protein ratios: one lacked N-acetyl-beta-glucosaminidase and lgp-120 and contained lamellar bodies; the other contained both lysosomal markers and a heterogeneous population of organelles that included multivesicular bodies, lamellar bodies, and lysosomes.
(11) In the lower granular layer, progressively more Ca++ precipitates appeared intercellularly, with the only intracellular Ca++ localized within mitochondria and lamellar bodies (limiting membranes and discs).
(12) Two of the sheep developed typical lesions of geeldikkop, including birefringent crystalloid material in bile ducts and concentric periductal lamellar fibrosis.
(13) In the area where the collagen was disorganized, and also near the periosteum, woven bone was first formed, which was then remodeled into lamellar bone.
(14) They induced modifications in particle distribution, a blebbing of particle-free areas and the appearance of lamellar figures on the plasma membrane of fungus cells.
(15) The depression of cellular division and the stimulation of palmitic acid uptake with coicident appearance of lamellar bodies in cultures exposed to prednisolone supports the hypothesis that control of the differentiation of alveolar epithelium with synthesis of phospholipid surfactant, is a function of the adrenal cortex.
(16) The precise relationship between the vesicles and the lamellar bodies is unknown.
(17) Dilysocardiolipin dispersions at low salt concentration are micellar, and a transition to a lamellar phase takes place between 1 and 2 M NaCl.
(18) The pores observed were about half the average diameter of the lamellar bodies and a deformation of that spherical secretory organelle was seen frequently.
(19) Some of the fully matured lamellar bodies also contained glycogen.
(20) This can be achieved by penetrating keratoplasty, lamellar keratoplasty, sclerokeratoplasty, keratectomy, peritomy, conjunctival transplantation or keratoepithelioplasty.