What's the difference between leaflet and sheet?

Leaflet


Definition:

  • (n.) A little leaf; also, a little printed leaf or a tract.
  • (n.) One of the divisions of a compound leaf; a foliole.
  • (n.) A leaflike organ or part; as, a leaflet of the gills of fishes.

Example Sentences:

  • (1) Urinalysis revealed a low pH, increased ketones and bilirubin excretion, dark yellowish change in color, the appearance of "leaflet-shaped" crystals and increased red blood cells and epithelial cells in the urinary sediment, increased water intake, decreased specific gravity and decreased sodium, potassium and chloride in the urine.
  • (2) To evaluate the relationship between the motion pattern and degree of organic change of the anterior mitral leaflet (AML) and the features of the mitral component of the first heart sound (M1) or the opening snap (OS), 37 patients with mitral stenosis (MS) were studied by auscultation, phonocardiography and echocardiography.
  • (3) Autopsy revealed a primary intimal sarcoma with osteogenic elements arising in the posterior leaflet of the pulmonary valve and obstructing the main pulmonary artery and its right branch.
  • (4) A block of tissue bounded by the ostium of the coronary sinus, the pars membranacea, the septal leaflet of the tricuspid valve and the atrial and ventricular septa is removed.
  • (5) To investigate whether lipids could also be transported from the inner to the outer leaflet, lipid probes residing exclusively in the inner leaflet were monitored for their appearance in the outer leaflet.
  • (6) Our observations demonstrated that echographic coaptation of the aortic valve leaflets coincides with the trough of the aortic pressure incisura and the onset of A2.
  • (7) Echocardiographic studies provided the precise noninvasive diagnosis by demonstrating large aneurysms arising below the posterior mitral leaflet.
  • (8) Twenty-one of the 22 patients showed systolic anterior movement of the anterior leaflet of the mitral valve on a cineangiogram and the papillary muscles and left ventricular wall were moderately to severely hypertrophied in 18 patients.
  • (9) The participants strongly preferred the experimental leaflets to the approved leaflets, both with respect to accessibility of the contents (overall preference 78.1% v 17.8%) and ease of understanding the contraindications of drug use (90.2% v 73.7%).
  • (10) Sixty days after 5,7-DHT administration, immunoreactive serotonin in the forebrain, particularly the suprachiasmatic nuclei and intergeniculate leaflets, was severely depleted in 16 animals, moderately depleted in four and only slightly affected in four.
  • (11) The fairytales – which have been distributed by leaflet to universities around Singapore – include versions of Cinderella, the Three Little Pigs, Rapunzel and Snow White, each involving a reworked tale that relates to fertility, sex or marriage, and a resulting moral.
  • (12) The city council’s community safety team, now responsible for a leaflet campaign urging young Muslims not to join Isis, used to employ 31-year old Mashudur Choudhury as a racial harassment worker.
  • (13) It was not related to a greater degree of dilatation of the tricuspid ring but to more severe septal and right ventricular infarction causing prolapse of the septal and posterior septal leaflets into the right atrium.
  • (14) The edge of the valve leaflet and the other 2 cusps were intact.
  • (15) The opening amplitude of the leaflet as well as the slope of the ejection fraction were not decreased.
  • (16) Changes in strain in the line of aortic valve leaflet attachment (aortic ring) were measured during the cardiac cycle by means of an inductive technique.
  • (17) Angiographic features felt to indicate valve tearing were present following 17 of 25 procedures and included increased excursion or straightening of leaflets, localized change in leaflet motion (flail leaflet), and the presence of an additional contrast jet through the valve.
  • (18) Furthermore, the long axis of the right and left atria was measured from the center of the apposed atrioventricular valve leaflets to the posterior atrial wall, and the sizes of the atrial chambers were defined using their widths at the prospective broadest points through the area of foramen ovale.
  • (19) One valve displayed a fixed outward eversion of the free margin of two leaflets.
  • (20) To date, 3-dimensional studies have demonstrated that the mitral valve is saddle-shaped in systole, so that apparent superior leaflet displacement in the mediolateral 4-chamber view, often seen in otherwise normal individuals, lies entirely within the bounds defined by the mitral annulus and occurs without leaflet distortion or actual displacement above the entire mitral valve.

Sheet


Definition:

  • (v. t.) In general, a large, broad piece of anything thin, as paper, cloth, etc.; a broad, thin portion of any substance; an expanded superficies.
  • (v. t.) A broad piece of cloth, usually linen or cotton, used for wrapping the body or for a covering; especially, one used as an article of bedding next to the body.
  • (v. t.) A broad piece of paper, whether folded or unfolded, whether blank or written or printed upon; hence, a letter; a newspaper, etc.
  • (v. t.) A single signature of a book or a pamphlet;
  • (v. t.) the book itself.
  • (v. t.) A broad, thinly expanded portion of metal or other substance; as, a sheet of copper, of glass, or the like; a plate; a leaf.
  • (v. t.) A broad expanse of water, or the like.
  • (v. t.) A sail.
  • (v. t.) An extensive bed of an eruptive rock intruded between, or overlying, other strata.
  • (v. t.) A rope or chain which regulates the angle of adjustment of a sail in relation in relation to the wind; -- usually attached to the lower corner of a sail, or to a yard or a boom.
  • (v. t.) The space in the forward or the after part of a boat where there are no rowers; as, fore sheets; stern sheets.
  • (v. t.) To furnish with a sheet or sheets; to wrap in, or cover with, a sheet, or as with a sheet.
  • (v. t.) To expand, as a sheet.

Example Sentences:

  • (1) The popularly used procedure in Great Britain is that in which a sheet of Ivalon sponge is sutured to the sacrum and wrapped around the rectum thus anchoring it in place.
  • (2) Some dental applications of the pressure measuring sheet, such as the measurement of biting pressure and balance during normal and unilateral biting, were examined.
  • (3) An accurate and reproducible method is described for generating a map of the cobalt sheet source from images of it made in multiple positions with the scintillation camera.
  • (4) Dose distributions were evaluated under thin sheet lead used as surface bolus for 4- and 10-MV photons and 6- and 9-MeV electrons using a parallel-plate ion chamber and film.
  • (5) The compromised ice sheet tilts and he sinks into the Arctic Sea on the back of his faltering white Icelandic pony.
  • (6) Expansion of the cell sheet following attachment, and the fusion of epiblasts advancing toward each other, does not require the presence of mineralocorticoid.
  • (7) The type I cells are squamous and give off attenuated sheets of cytoplasm which spread widely over the septal surface; these sheets contain few organelles.
  • (8) The frequency spectra of transmission coefficients for ultrasound passing through a sheet of gas-filled micropores have been measured using incident waves with amplitudes up to 2.4 x 10(4) Pa.
  • (9) Both types of molecules are compact and globular in shape and apparently contain beta-pleated sheet conformation.
  • (10) In the high-grade component, the blasts occurred in clusters or sheets, and often possessed plasmacytoid cytoplasm; glandular invasion was a rare event.
  • (11) A template showing typical histograms from commonly occurring CLPD was also produced on an acetate sheet.
  • (12) These findings suggest that the presence of features such as large prominent nucleoli, tumor growth in sheets, individual-cell necrosis, and nuclear pleomorphism may be used to predict recurrence of subtotally resected meningiomas that would not be classified as malignant by traditional criteria.
  • (13) The conformational similarity between tubules, sheets, and the dry powder is corroborated by calorimetry, which reveals a cooling exotherm at the same temperature where tubules form upon cooling hydrated sheets.
  • (14) The cortical vitreous of the normal (control) eye appeared to be a lamellar structure composed of sheets of collagen mesh.
  • (15) A central eight-stranded beta-pleated sheet is the main feature of the polypeptide backbone folding in dihydrofolate reductase.
  • (16) In order to clarify the role of dialyzer geometry, the effect of hollow-fiber versus flat-sheet dialyzers and of different surface areas on C3a generation and leukocyte degranulation was investigated.
  • (17) The simultaneous binding of the polypeptidic molecules to two opposing bilayers appears to be required in order to preserve the beta-sheet structure at pressures over approximately 9 kbar: a small proportion of the polypeptide, most likely the molecules at the surface of the aggregated bilayers, was found to convert to unordered and eventually to alpha-helical conformations in the pressure range 9-19 kbar.
  • (18) Pterygia, triangular sheets of fibrovascular tissue that invade the cornea, have recurrence rates of 30% to 50% with currently available surgical procedures.
  • (19) Cells containing A-layer and isolated A-layer sheets specifically bound laminin and fibronectin with high affinity.
  • (20) Under fluoroscopic control a lower polar calix was punctured with 18 G sheathed needle; a guide wire was introduced through the sheet.