What's the difference between derma and dermis?

Derma


Definition:

  • (n.) See Dermis.

Example Sentences:

  • (1) Collagenous carcass of human derma is formed by interconnected fibrils, fibrillar fasciculi, fibers and their fasciculi.
  • (2) The results show that: 1) a correlation exists between an increase in diameter of collagen fibrils and somatic growth until sexual maturity is reached; 2) fibril populations are subsequently spread over a wider range due to the presence in the derma of classes of newly formed and therefore thinner fibrils.
  • (3) The prevalence rate of each symptom was 8% for respiratory organs, 5% for delayed type of respiratory disorders, 10% for nasal mucosa, 16% for eyes, 16% for urticaria-like derma and 26% for eczema-like derma.
  • (4) The changes in the derma, selected as a representative of highly organized connective tissue, were studied by 8 types of staining and histochemical reactions in 896 biopsies of macroscopically unchanged skin from the gluteal region of 56 patients with acute phospho-organic pesticide intoxication between the 2d and 15th day after the intoxication.
  • (5) Some authors report that collagen in derma after industrial treating by the salts of chrom imply rather diffuse X-ray patterns.
  • (6) In the absence of microscopic changes in the germ-free animals there was revealed in their skin a neutrophilic-mononuclear infiltration of the derma, dilatation of the vessels, thrombosis of individual vessels.
  • (7) The microscopic analysis of certain points in man and in animal has shown specific elements of the acupuncture point, under the form of a thickness of the epiderm, a modification of the collagen fibers of the derma, of the vascular spiral vessels surrounded by a network of a amyelinic fibers of the cholinergic type, with interlaced myelinic fibers.
  • (8) The former were localized in the epi- or perineurium of pulpless nervous fibers of the derma, the latter among collagen fibers.
  • (9) There is no simple explanation for the reported observations but it is possible that local factors in the derma or an aspecific antiinflammatory action of deoxytetracycline are responsible for the unusual response of dermal experimental infection to antibiotic treatment.
  • (10) Certain new data have been obtained on the process of the MC specific granules formation in the derma from progranules up to the stage of a mature granule.
  • (11) Connective tissue frame-work of the regenerated area on the abdomen and the back resembled intact derma by fiber distribution.
  • (12) This kind of neoplasm develops itself inside the derma without involving the epidermidis and shows an aggressive biological behaviour.
  • (13) Mycosis fungoides initially involves the epidermis and the superficial layers of derma at a depth of about 1 cm.
  • (14) In hypertrophy, the derma replaces the mammary gland, reducing the size of the secondary involutions.
  • (15) Electron microscopic examination of the upper layers of the derma in skin biopsy specimens from 20 patients with psoriasis, collected both in foci of lesions and those of apparently intact skin, has revealed that changes in amyelinic nerve fibers are more marked in foci of involvement.
  • (16) Therefore the collagen in derma is not distroed after salt treatment.
  • (17) Basing on the histologic findings (suprabasal vesicles above the basal layer, acantholysis in the epidermis, and negligible lymphocytic infiltrate in the derma), Gougerot-Hailey-Hailey's disease has been diagnosed.
  • (18) The dermaerosion of the corium could not be repaired but changed the color of the derma of the patient who recovered after a lapse of 2 years and 8 months.
  • (19) There were revealed evidences of intensified neofibrillogenesis, changes in collagen structures of the derma (destruction and defects of packing of collagenous fibrills, variability of their thickness in a fibre) and in the microcirculatory bed.
  • (20) These disorders involve hemocoagulation, angiopathic, and chronic inflammatory processes in the derma, that lead to necrosis and sclerosis of dermal connective tissue.

Dermis


Definition:

  • (n.) The deep sensitive layer of the skin beneath the scarfskin or epidermis; -- called also true skin, derm, derma, corium, cutis, and enderon. See Skin, and Illust. in Appendix.

Example Sentences:

  • (1) As with alloplastic orbital implant extrusions in enucleated sockets, autogeneous dermis fat grafts can be useful in managing extrusions in previously eviscerated sockets.
  • (2) It increased linearly in both the epidermis and dermis, reaching nearly 100% 24 hr following its injection on Day 8.
  • (3) Thinning of the dermis and the arrangement of collagen in parallel bundles appear to be constant findings.
  • (4) These injections led to epidermal hyperplasia in areas overlying the irritant and the effect was most significant when the irritant was placed in the upper dermis.
  • (5) The dermis from the more severely injured skin of both groups showed a homogeneous appearance ("necrosis").
  • (6) Applied atelocollagen was histopathologically compared with applied lyophilized porcine dermis (LPD) and controls in rats, with regard to the time course of healing.
  • (7) First, vasculitis extending deep into the reticular dermis or subcutaneous tissue seemed to be associated more often with systemic disease such as malignancy or connective tissue disease.
  • (8) Histologic examination of biopsy specimens from the involved area of skin revealed the presence of inflammatory cell infiltrates and various degrees of collagen accumulation in the dermis, subcutis, fascia, and underlying muscle.
  • (9) The biopsy findings consisted of eosinophilic individual necrosis of epidermal cells, satellite cell necrosis, basal liquefaction degeneration, and scanty cell infiltration into the dermis.
  • (10) Ten tissue sections from 10 examples of Bowen's disease were excised from paraffin blocks, rehydrated, and incubated in 90% formic acid at 45 degrees C for 18 h. The epidermis was gently removed with the aid of a dissecting microscope, and the remaining dermis with attached basal lamina was processed for scanning electron microscopy.
  • (11) Monoclonal antibody studies performed on biopsy specimens from both patients revealed 70% to 100% cells staining with CD5, 80% to 90% staining with CD4, 30% to 50% staining with CD8, and an increase in CD1-staining cells in the papillary dermis, indicating a predominantly helper T-cell infiltrate.
  • (12) The pathologic findings were dominated by lymphocytic inflammation around centrally placed follicles evolving to follicular necrosis that extended to the perifollicular epidermis and dermis.
  • (13) Similar vacuoles were also observed in the epidermal intercellular spaces and within the dermis.
  • (14) Acitretin flux through tape-stripped monkey skin and dermis was only slightly higher than through intact skin.
  • (15) Two had multiple nodules and the third had a single, recurrent lesion in the dermis or subcutis of the distal extremities.
  • (16) The increase of PGD synthetase activity in 3-week-old rats was mainly due to the increase of specific activity of PGD synthetase in the epidermis, which was separated from the dermis by heat treatment (55 degrees C, 30 s).
  • (17) This collagen appeared present throughout the whole dermis with slight variations at 4 months, where there was less extracellular collagen near the hair bulbs.
  • (18) The key assumptions are (1) that the target site is in the lower epidermis (basal layer) or in the dermis, and (2) that it is the thermodynamic activity (i.e., the free drug concentration, C*, of the active drug species) at the target site that is the true correlate of drug effectiveness.
  • (19) In initial lesions, CD1a+ cells represent up to 50-60% of the infiltrating cells of the dermal compartment, in several cases being preferentially localized in the upper part of the papillar dermis close up to the epidermal CD1a+ cells in basal position, whereas in chronic psoriasis they represent less than 10%.
  • (20) An antiserum raised in Rabbits against brain glycoprotein precipitated an identical antigen in faetal dermis and intestine extracts, and also in non nervous tumors (breast adenocarcinomas and adenofibromas, ovarian cystadenoma, gastric and colonic adenocarcinomas, hepatomas, malignant melanomas, rhabdomvosarcoma, fibrosarcomas).

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