(v. t.) To cut into long slices or strips and dry in the sun; as, jerk beef. See Charqui.
(v. t.) To beat; to strike.
(v. t.) To give a quick and suddenly arrested thrust, push, pull, or twist, to; to yerk; as, to jerk one with the elbow; to jerk a coat off.
(v. t.) To throw with a quick and suddenly arrested motion of the hand; as, to jerk a stone.
(v. i.) To make a sudden motion; to move with a start, or by starts.
(v. i.) To flout with contempt.
(n.) A short, sudden pull, thrust, push, twitch, jolt, shake, or similar motion.
(n.) A sudden start or spring.
Example Sentences:
(1) The EMG silent periods (SP) produced in the open-close-clench cycle and jaw-jerk reflex were compared for duration before and after treatment with an occlusal bite splint.
(2) While tonic pupil and reduced sweating can be attributed to the affection of postganglionic cholinergic parasympathetic and sympathetic fibres projecting to the iris and sweat glands, respectively, the pathogenesis of diminished or lost tendon jerks remains obscure.
(3) In reflex-induced jerks this negative transient could be recognized as a component of the sensory evoked potential.
(4) A dynamic optimization technique to minimize jerk cost under the constraint on jerk input was applied to interpret the results, assuming that a major goal of skilled movements was to produce optimally smooth movements.
(5) The Peppers like to be jerks (at Dingwalls Swan dedicated a song to “all you whiney Britishers who can suck my American cock”), but don’t let the surface attitude fool you.
(6) Results from animal experiments and neuropathological studies suggest that the abolition of jerks in such cases is probably due to loss of facilitating influences from the cerebral cortex and central grey nuclei.
(7) Surgery caused or aggravated unilaterally diminished knee or ankle jerks in 3% and 10% of cases, respectively.
(8) This is a gladiatorial display – that is what people go to see.” Bray added: “The popular knee-jerk reaction will be we should ban airshows, but it’s very rare for such a crash to take place.
(9) High-frequency trading may or may not distort markets, but surely a knee-jerk reaction by banning it is not the answer.
(10) In order to overcome various drawbacks of the conventional polygraphic study of a relationship between myoclonus and EEG, the EEG preceding and following the myoclonic jerk was simultaneously averaged by the CNV program.
(11) Compared with the myoclonic-serotonergic syndrome evoked by 5-hydroxytryptophan in rats with 5.7-dihydroxytryptamine lesions, harmaline+5-hydroxytryptophan-treated rats displayed more continuous and greater axial myoclonic jerks and some postural differences.
(12) The effects of electrical stimulation and microinjection of sodium glutamate (0.5 M) in the sympathetic pressor areas of the dorsal medulla (DM), ventrolateral medulla (VLM), and parvocellular nucleus (PVC) on the knee jerk, crossed extension, and evoked potential of the L5 ventral root produced by intermittent electrical stimulation were studied in 98 adult cats anesthetized with chloralose and urethane.
(13) The knee jerk itself is seen as a "physiological artefact," resulting from a mode of stimulation that does not occur in life, with the normal function of its underlying circuitry still under debate.
(14) The patients did not significantly differ from controls on catch-up saccade amplitude, square wave jerk rate, or anticipatory saccade rate.
(15) It was confirmed that the technique of jerk-locked averaging with a backward averaging program was useful for detecting cortical spikes in association with the spontaneously occurring myoclonus, which are not recognized on the convential polygraph, and for evaluating the temporal and topographical relationship between the spike and the myoclonus.
(16) The typical electrophysiological correlates of myoclonus in Alzheimer's disease are similar to those of cortical reflex myoclonus, with a focal, contralateral negativity in the EEG preceding the myoclonic jerk.
(17) The analgesic effect of morphine in the rat tail jerk assay was enhanced by the serotonin uptake inhibitor, fluoxetine.
(18) In focal epileptic status, the single dose stopped paroxysmal activity and the associated clonic jerks for a few seconds.
(19) The occurrence of horizontal jerks with larger amplitudes than on Earth was observed during vertical optokinetic nystagmus in astronauts tested throughout a 7-day spaceflight.
(20) Only one patient felt his knee to be unstable (he had a positive pivot jerk).
Whiplash
Definition:
(n.) The lash of a whip, -- usually made of thongs of leather, or of cords, braided or twisted.
Example Sentences:
(1) To provide a perspective on "whiplash" injury in Australia by examining conflicting evidence, which suggests on the one hand that the disorder is a culturally conditioned and legally sanctioned illness and on the other, that it is an occult injury which can cause chronic pain.
(2) Whiplash, or cervical acceleration extension injury, is due predominantly to hyperextension and prolongation of the neck, with rebound flexion.
(3) Psychological tests and psychiatric evaluation indicated that organic brain pathology was present in the whiplash patients, although to a lesser extent than in patients with traumatic encephalopathy.
(4) PEMT as described is safe for domiciliary use and this study suggests that PEMT has a beneficial effect in the management of the acute whiplash injury.
(5) Contact with the tentacles of the jellyfish had produced characteristic whiplash-like weals on the skin.
(6) The special features indicating neck involvement include: whiplash trauma by history, reduction of range of movement in the neck, ipsilateral shoulder and--occasionally--arm pain, and, further, the fact that attacks can be precipitated mechanically by the patients (by neck movements) or by the physician (by external pressure towards circumscribed points in the neck).
(7) Our investigation shows that skeletal lesions after whiplash injury, although very few, are shown by plain skeletal radiography.
(8) This disturbance of retention is not observed when the acquisition is performed before the whiplash.
(9) Chronic rheumatic pain syndromes such as the fibrositis syndrome, 'whiplash' syndrome, low back pain syndrome and regional pain syndrome are common clinical disorders of unknown cause.
(10) Case reports are given to discuss the pathomechanism and therapy of emphysema as a result of injuries of cranium and larynx, dental treatment, whiplash injury, adenotonsillectomy and spontaneously in asthma.
(11) Risk factors which should alert the medical team to possible coexisting brain injury include history of loss of consciousness at original injury, history of trauma to the head, whiplash injury to the neck, multisystem trauma, and admission of memory or attention deficits by the patient.
(12) Acute whiplash injuries are a common cause of soft tissue trauma for which the standard treatment is rest and initial immobilisation with a soft cervical collar.
(13) This article reviews the literature on whiplash shaken infant syndrome since Caffey's original review.
(14) Laryngeal ruptures are caused by vertical traction on the larynx and trachea, mainly by pushing the chin upon a dashboard or by so called whiplash trauma.
(15) In this report are described chemically-induced ulnar neuritis from cortisone injections about the medial humeral epicondyle; pressure ulnar neuritis in patients with enforced bed rest and from improper positioning on operating table with permanent neural deficit and the relationship of such hypermobile ulnar nerves to extension-flexion (whiplash) trauma to the neck.
(16) The published English language literature derived from MEDLINE covering epidemiological, pathogenetic and psychological aspects of "whiplash" injury, post-traumatic stress disorder, abnormal illness behaviour and iatrogenicity; the Australian legal literature; the printed news media; the Transport Accident Commission of Victoria and the State Government Insurance Commission of South Australia.
(17) During flexion whiplash, the torque at the occipital condyle reverses its direction at about 25 ms after impact.
(18) These case reports illustrate both sides of the controversy on the organic versus psychogenic etiology of the cerebral symptoms following whiplash-injury of the neck.
(19) Whiplash injuries usually result in neck pain owing to myofascial trauma, which has been documented in both animal and human studies.
(20) Otoneurological examination showed abnormalities in 9 of 17 whiplash subjects.