What's the difference between lamina and leaflet?

Lamina


Definition:

  • (n.) A thin plate or scale; a layer or coat lying over another; -- said of thin plates or platelike substances, as of bone or minerals.
  • (n.) The blade of a leaf; the broad, expanded portion of a petal or sepal of a flower.
  • (n.) A thin plate or scale; specif., one of the thin, flat processes composing the vane of a feather.

Example Sentences:

  • (1) In the caudal spinal trigeminal nucleus (Vc), the collaterals of one half of the periodontium afferent fibers terminated mainly in lamina V at the rostral and middle levels of Vc.
  • (2) It appears that the effects of monocular lid suture upon MIN are in most respects similar to the effects of monocular lid suture previously reported for the A laminae.
  • (3) In contrast to this, adrenalectomy decreased ANP levels markedly in the organum vasculosum laminae terminalis and preoptic periventricular nucleus, which are reportedly involved in the central regulation of salt and water homeostasis.
  • (4) Light microscopy of both apneics and snorers revealed mucous gland hypertrophy with ductal dilation and focal squamous metaplasia, disruption of muscle bundles by infiltrating mucous glands, focal atrophy of muscle fibers, and extensive edema of the lamina propria with vascular dilation.
  • (5) The surface phenotypes of bovine intestinal leukocytes isolated from the intraepithelium (IEL), lamina propria (LPL) and Peyer's patches (PPL) of the small intestinal mucosa of normal adult cows were determined using monoclonal antibodies (mAb) specific to adult bovine peripheral blood leukocytes (PBL).
  • (6) Glycogen, lipid, basal lamina, and canaliculi were present in all cases.
  • (7) A complete review of the literature was made which shows that most chondrosarcomas occur in middle-aged males originating most often from the posterior cricoid lamina, next from the thyroid cartilage.
  • (8) Based on their localisation and histology these are classified into three types (Epstein's pearls, Bohn's nodules, Dental lamina cysts).
  • (9) These laminae included the dentate hilus and strata oriens, pyramidale and lacunosum-moleculare of CA1.
  • (10) This method has also been successfully used in humans and rabbits to demonstrate specific antibody production by single lamina propria plasma cells.
  • (11) CD8 positive cells were detected randomly in all regions of the mucosa, whereas CD4 positive cells tended to be clustered in the superficial portion of the lamina propria.
  • (12) Of particular interest was the presence of dense-core vesicles in some of the glial cells, and that of a basal lamina underlying the perivascular glial cells.
  • (13) The total height of the lamina mucosa decreased from 700 to 275 microns.
  • (14) Injections with extensive spread of horseradish peroxidase show that many cells of lamina 4B and the large pyramidal neurons of upper lamina 6 also project extrinsically but their terminal sites have not been identified.
  • (15) At surgery, upon incision of the paravertebral muscle fascia, viscous pale fluid was encountered emanating from a foramen in the thoracic lamina.
  • (16) The sucker, covered with basal lamina, has a constant volume; its layer of muscles resists deformation and supports the stability of the arch.
  • (17) The development of the first molar was examined from the dental lamina stage through apposition.
  • (18) In both of these groups, the inoculated bacteria were recovered from the colon, and T hyodysenteriae was demonstrated in the colonic crypts, epithelium, and lamina propria.
  • (19) Although there was an increased concentration of angiotensin II binding sites in the organum vasculosum of the lamina terminalis, the median preoptic nucleus, and the paraventricular nucleus after dehydration, these changes did not reach statistical significance.
  • (20) FG or WGA-HRP labeled neurons were found mainly in laminae V and VII, in the lateral group of lamina IX, in Clarke's column (CC) and in the dorsal funiculus.

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.