(n.) The whitish mass of soft matter (the center of the nervous system, and the seat of consciousness and volition) which is inclosed in the cartilaginous or bony cranium of vertebrate animals. It is simply the anterior termination of the spinal cord, and is developed from three embryonic vesicles, whose cavities are connected with the central canal of the cord; the cavities of the vesicles become the central cavities, or ventricles, and the walls thicken unequally and become the three segments, the fore-, mid-, and hind-brain.
(n.) The anterior or cephalic ganglion in insects and other invertebrates.
(n.) The organ or seat of intellect; hence, the understanding.
(n.) The affections; fancy; imagination.
(v. t.) To dash out the brains of; to kill by beating out the brains. Hence, Fig.: To destroy; to put an end to; to defeat.
(v. t.) To conceive; to understand.
Example Sentences:
(1) Here we have asked whether protection from blood-borne antigens afforded by the blood-brain barrier is related to the lack of MHC expression.
(2) The extents of phospholipid hydrolysis were relatively low in brain homogenates, synaptic plasma membranes and heart ventricular muscle.
(3) First results let us assume that clinically silent TIAs also (in analogy to clinically silent brain infarctions) could be detected and located.
(4) Brain and ganglia of embryonic Periplaneta americana were grown for 2 to 3 weeks in a chemically defined medium.
(5) The results indicated that neuropsychological measures may serve to broaden the concept of intelligence and that a brain-related criterion may contribute to a fuller understanding of its nature.
(6) To quantify the size of the lesion in mice, the area of the infarct on the brain surface was assessed planimetrically 48 h after MCA occlusion by transcardial perfusion of carbon black.
(7) However, CT will be insensitive in the detection of the more cephalic proximal lesions, especially those in the brain stem, basal cisterns, and skull base.
(8) The fine structure of neurofibrillary tangles in the hippocampal gyrus, substantia nigra, pontine nuclei and locus coeruleus of the brain was postmortem studied in a case of progressive supranuclear palsy.
(9) We similarly evaluated the ability of other phospholipids to form stable foam at various concentrations and ethanol volume fractions and found: bovine brain sphingomyelin greater than dipalmitoyl 3-sn-phosphatidylcholine greater than egg sphingomyelin greater than egg lecithin greater than phosphatidylglycerol.
(10) This study examined the [3H]5-HT-releasing properties of 3,4-methylenedioxymethamphetamine (MDMA) and related agents, all of which cause significant release of [3H]5-HT from rat brain synaptosomes.
(11) In the present investigation we monitored the incorporation of [14C] from [U-14C]glucose into various rat brain glycolytic intermediates of conscious and pentobarbital-anesthetized animals.
(12) Cranial MRI revealed delayed myelination in the white matter but no brain malformation.
(13) When compared with lissencephalic species, a great horizontal fibrillary system (which is vertically arranged in gyral regions) was observed in convoluted brains.
(14) In more than 70 per cent of these, brain injury is the decisive lethal factor.
(15) Brain damage may be followed by a number of dynamic events including reactive synaptogenesis, rerouting of axons to unusual locations and altered axon retraction processes.
(16) Based on our results, we propose the following hypotheses for the neurochemical mechanisms of motion sickness: (1) the histaminergic neuron system is involved in the signs and symptoms of motion sickness, including vomiting; (2) the acetylcholinergic neuron system is involved in the processes of habituation to motion sickness, including neural store mechanisms; and (3) the catecholaminergic neuron system in the brain stem is not related to the development of motion sickness.
(17) The regional distribution of beta-adrenoceptor subtypes was found to be similar to that seen in the rat brain.
(18) We assessed changes in brain water content, as reflected by changes in tissue density, during the early recirculation period following severe forebrain ischemia.
(19) If tracer is introduced into the carotid artery after osmotic treatment, brain uptake is increased by a net factor of 50 (a factor of 70 due to elevation of PA, multiplied by 7 due to infusion by the carotid route) as compared to uptake by normal, untreated brain with infusion into a peripheral vein.
(20) This study examined both the effect of variations in optical fiber tip and in light wavelength on laser-induced hyperthermia in rat brain.
Faint
Definition:
(superl.) Lacking strength; weak; languid; inclined to swoon; as, faint with fatigue, hunger, or thirst.
(superl.) Wanting in courage, spirit, or energy; timorous; cowardly; dejected; depressed; as, "Faint heart ne'er won fair lady."
(superl.) Lacking distinctness; hardly perceptible; striking the senses feebly; not bright, or loud, or sharp, or forcible; weak; as, a faint color, or sound.
(superl.) Performed, done, or acted, in a weak or feeble manner; not exhibiting vigor, strength, or energy; slight; as, faint efforts; faint resistance.
(n.) The act of fainting, or the state of one who has fainted; a swoon. [R.] See Fainting, n.
(v. i.) To become weak or wanting in vigor; to grow feeble; to lose strength and color, and the control of the bodily or mental functions; to swoon; -- sometimes with away. See Fainting, n.
(n.) To sink into dejection; to lose courage or spirit; to become depressed or despondent.
(n.) To decay; to disappear; to vanish.
(v. t.) To cause to faint or become dispirited; to depress; to weaken.
Example Sentences:
(1) Sleep was defined behaviorally as failure to respond to the faint auditory RT cue.
(2) On the other hand, immunofluorescence in anterior pituitary cells was faint and detected in only 2 of 28 patients with Graves' disease (7.1%) after absorption of their sera with rat liver aceton powder.
(3) Implications of these findings for fear and fainting acquisition and its relation to avoidance were discussed.
(4) Atlético Madrid maintained their faint hopes of catching Barcelona by recording a fourth straight league win, comfortably beating Deportivo la Coruña 3-0 with goals by the midfielder Saúl Ñíguez, top scorer Antoine Griezmann and Argentinian forward Ángel Correa.
(5) One subject reported slight transient faintness and visual blurring after 20 mg of the drug.
(6) I watched some boxing last night," he replies in his faint, lisping voice.
(7) Supporting a Sunderland side who had last won a home Premier League game back in January, when Stoke City were narrowly defeated, is not a pursuit for the faint-hearted but this was turning into the equivalent of the sudden dawning of a gloriously hot sunny day amid a miserable, cold, wet summer.
(8) Positive specimens produce a faint pink deposit which is better visualised by silver enhancement which gives an intense black colour.
(9) The pI 5.0 component, designated F-5.0, was faint yellow, with a broad absorption in the range of 400-450 nm, while the pI 7.5 component, designated F-7.5, was colorless and did not absorb in that range.
(10) There is the sound of engines hissing and crackling, which have been mixed to seem as near to the ear as the camera was to the cars; there is a mostly unnoticeable rustle of leaves in the trees; periodically, so faintly that almost no one would register it consciously, there is the sound of a car rolling through an intersection a block or two over, off camera; a dog barks somewhere far away.
(11) Among the observed side effects were moderate pelvic cramps (20.9%), nausea (27%), fainting (4.8%); 61.3% of the women complained of fatigue.
(12) The study has revealed a faintly pronounced inverse correlation between the degree of avidity of serum antibodies and the level of infectious antigenemia.
(13) The intravenous injection of 5-HT relieves established migraine headache, but causes side-effects of nausea, faintness, paraesthesia and dyspnoea.
(14) Uptake in the other benign lesions such as trauma of the ribs, spondylosis deformans, and arthrosis deformans was rather faint.
(15) Consistent with these measures, derived from self-reported data, physician-diagnosed measures also indicate a greater vulnerability of unemployed individuals to serious physical ailments such as heart trouble, pain in heart and chest, high blood pressure, spells of faint-dizziness, bone-joint problems and hypertension.
(16) The tec gene is expressed mainly in liver and faintly in heart, kidney and ovary.
(17) All lymphomas and plasmacytomas were negative with MAK-6 and CAM-5.2, however, AE1:AE3 faintly stained two of three plasmacytomas and two of the seven large cell lymphomas.
(18) In the arterial blood, ESR signal of HbNO with faint hyperfine structure was detected.
(19) He is also characterised as "the devoted husband of a bestselling novelist with a few of her own ideas about how fiction works"; a funny sentence construction that carries a faint whiff of husband stoically bent over his books as wife keeps popping up with pesky theories about realism.
(20) Total RNP contained more small subunit proteins than 110S RNP; 7 proteins spots were distinct, 10 protein spots were faint and 8 protein spots were missing.