What's the difference between obtundent and sheath?

Obtundent


Definition:

  • (n.) A substance which sheathes a part, or blunts irritation, usually some bland, oily, or mucilaginous matter; -- nearly the same as demulcent.

Example Sentences:

  • (1) The thigh and hip manifestations can obscure the primary intra-abdominal process either due to the obvious emphysema or to the obtunded abdominal signs secondary to associated neuropathy.
  • (2) Results showed the greatest inhibition of noxious stimulus perception with Innovar-Vet, lesser inhibition with ketamine-xylazine and ketamine-diazepam, and the least obtunding of nociception with pentobarbital.
  • (3) The use of wire stylets to facilitate passage of these tubes has increased the chances of unrecognized tracheal intubations, particularly in obtunded patients.
  • (4) Characteristic clinical features were present in 19 patients, including a gradual obtundation after the initial hemorrhage in 16 patients and small nonreactive pupils in nine patients (all with a Glasgow Coma Scale score of 7 or less).
  • (5) Kynurenic acid significantly obtunded these behavioral and physiological effects, particularly when given 60-75 min after the toxic insult.
  • (6) Addition of adenosine deaminase to fat cells isolated from cold-exposed rats did not normalize the lipolytic activity, suggesting that extracellular adenosine was not responsible for the obtunded lipolysis.
  • (7) A 59-year-old man was admitted because of frequent vomiting and obtundation in February 1982.
  • (8) Propofol was more effective than methohexitone at obtunding the hypertensive response to electroconvulsive therapy without causing significant hypotension.
  • (9) Thus, although low doses of glucocorticoids foster development of the coupling of beta-receptors to cellular transduction mechanisms, higher doses such as those used to stimulate lung function may lastingly obtund adrenergic sensitivity.
  • (10) Neurologic dysfunction is characterized by lethargy, obtundation, persistent vomiting, agitated delirium, and coma.
  • (11) The current indications for lavage are obtundation, unprotected airway, seizures, the need for urgent removal, and the tendency to form concretions.
  • (12) Histoplasmosis in the CNS may produce meningitis, single or multiple brain abscesses, and may present with either a clinical picture of obtundation or a deteriorating space-occupying CNS lesion.
  • (13) Other variables with strong predictive potential were age (P less than 0.001), the presence of multiple disease states (P less than 0.01), therapy with multiple drugs (P less than 0.01) and acute stroke or obtundation on admission (P less than 0.01).
  • (14) As projected by this study, scleral heterografts might well be used to obliterate bony undercuts and perhaps to obtund cystic cavities and other major bony defects.
  • (15) The patient became progressively more obtunded throughout the emergency department stay.
  • (16) The effects of 3H-epinephrine on the duration of block and on the time course of uptake and efflux of local anesthetic (14C-lidocaine hydrochloride) were determined in the infraorbital nerve of the pentobarbital-obtunded rat.
  • (17) Contraindications for gastric lavage are similar to those for emesis except that it may be safer to use in obtunded, comatose, or uncooperative patients.
  • (18) I have described a fatal case of GGS meningitis and endocarditis in a previously healthy 84-year-old who had obtundation, irritability, and cellulitis.
  • (19) The toxicity of dCF alone was minimal, except for one patient who became obtunded on day 5 following the first cycle of therapy.
  • (20) Symptoms occurred between 30-180 min with the onset of central nervous system depression, ataxia, waxing and waning obtundation, hallucinations, intermittent hysteria or hyperkinetic behavior.

Sheath


Definition:

  • (n.) A case for the reception of a sword, hunting knife, or other long and slender instrument; a scabbard.
  • (n.) Any sheathlike covering, organ, or part.
  • (n.) The base of a leaf when sheathing or investing a stem or branch, as in grasses.
  • (n.) One of the elytra of an insect.

Example Sentences:

  • (1) The oral nerve endings of the palate, the buccal mucosa and the periodontal ligament of the cat canine were characterized by the presence of a cellular envelope which is the final form of the Henle sheath.
  • (2) Electron microscopic observations of the masseter nerve in the aged cats revealed a disruption of the myelin sheaths and a pronounced increase in collagen fibers in the endoneurium and perineurium.
  • (3) The authors propose three regular procedures with which they are experienced: repair with a large retromuscular nonabsorbable synthetic tulle prosthesis for extensive epigastric eventrations, fillup aponeuroplasty using the sheath of the rectus abdominis associated with a premuscular patch in case of diastasis or of multiple superimposed orifices and suture associated with a small retromuscular auxiliary patch to treat small incisional hernias.
  • (4) Extraction tools included flexible, telescoping sheaths advanced over the lead to dilate scar tissue and apply countertraction, deflection catheters, and wire basket snares.
  • (5) Thirteen soft tissue sarcomas with ultrastructural evidence of nerve sheath differentiation were investigated by immunohistochemistry.
  • (6) This cell population gives rise initially to oligodendrocytes and then to type-2 astrocytes, both of which apparently collaborate in sheathing axons in the CNS.
  • (7) Rabbit antirat T-cell serum (ALS(T)) reacted selectively with the surfaces of lymphocytes in the paracortex of lymph node and in the periarteriolar sheath of spleen, and with thymocytes.
  • (8) After properly fixing the vas deferens with a ring clamp, the surgeon pierces the scrotal skin, vas sheath, and vas deferens in the midline with a curved dissecting clamp held at a 45 degree angle from horizontal.
  • (9) We immunohistochemically examined the expression of Schwann cell-related markers, nerve growth factor (NGF) receptor, S-100 alpha- and beta-proteins, glial fibrillary acidic protein (GFAP), and galactocerebroside (gal C) in 5 malignant schwannomas, 21 benign peripheral nerve sheath tumors, and 4 apparently normal sural nerves.
  • (10) The transversalis fascia of the floor of the femoral canal turns down to form the medial wall of the venous compartment of the femoral sheath, and has the support of the curved edge of the lacunar ligament which effectively bars the femoral canal from entering the thigh.
  • (11) Unique domains of the retinal interphotoreceptor matrix (IPM), termed cone matrix sheaths, are composed largely of chondroitin 6-sulfate proteoglycan in most higher mammalian species.
  • (12) 2ME treatment caused partial solubilization of the sheaths (45% as determined by amino acid analysis), which could be further improved by combining 2ME with SDS.
  • (13) The 6.8F ultrasound balloon catheter was placed percutaneously in the right femoral artery through a 9F sheath.
  • (14) The isolated outer sheath was observed as a triple-layered, closed vesicle carrying a polygonal array by electron microscopy.
  • (15) 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.
  • (16) An outer sheath was isolated from Treponema phagedenis biotype Reiter by our previously developed method (Masuda, K., and Kawata, T. 1982.
  • (17) Seven tumours were predominantly of blue and spindle-cell, fascicular type, resembling malignant peripheral nerve sheath tumour and at times monophasic synovial sarcoma.
  • (18) Several additional groups of muscle cells of more limited mass and spatial distribution include the vulval muscles of hermaphrodites, the male sex muscles, the anal-intestinal muscles, and the gonadal sheath of the hermaphrodite.
  • (19) The notochord, which is composed of a stack of flat cells surrounded by a connective tissue sheath, elongates dramatically and begins straightening between stages 21 and 25.
  • (20) Under fluoroscopic control a lower polar calix was punctured with 18 G sheathed needle; a guide wire was introduced through the sheet.