DTR


Also found in: Dictionary, Thesaurus, Legal, Acronyms, Encyclopedia, Wikipedia.

DTR

 
registered dietetic technician.

DTR

Abbreviation for deep tendon reflex.

DTR

abbreviation for deep tendon reflex.

DTR

Deep tendon reflex, see there.

reflex

involuntary and largely unconscious reaction in response to a peripheral stimulus; detected by an affector organ (e.g. tendon stretch receptors; heat-sensitive nerve endings within the skin), transmitted along afferent nerve fibres to central nervous system centres, and thence to an effector organ via efferent nerve fibres, e.g. skeletal muscle, causing distal limb movement, or sweat gland tissue, causing sweat flow and resultant cooling; see Table 1
  • Achilles reflex; ankle reflex deep tendon reflex triggered by percussion of Achilles tendon 5cm proximal to its insertion into posterior calcaneum; induces contraction of posterior muscle group (gastrocnemius and soleus) and brief plantarflexion of foot at ankle joint; demonstrates normal S1 function

  • Babinski's reflex see response, extensor plantar

  • Chaddock reflex see response, Chaddock

  • deep tendon reflex; DTR involuntary contraction of skeletal muscle induced by sudden and brief lengthening or percussion of subserving tendon; magnitude increased in upper motor neurone lesions, and absent/greatly reduced in any type of lower motor neurone lesion, peripheral sensory neuropathy and the elderly; enhanced by isometric contraction (e.g. hand-clenching) at time of test

  • Gordon reflex see response, Gordon

  • knee jerk reflex see reflex, patellar

  • motor reflex see reflex, deep tendon

  • muscle stretch reflex see reflex, deep tendon

  • Oppenheim reflex see response, Oppenheim

  • patellar reflex; knee-jerk reflex; quadriceps reflex sudden contraction of anterior-thigh muscle group (quadriceps) and resultant lower-limb 'kick' action due to brief knee joint extension; induced by transitory lengthening/percussion of patellar tendon at midpoint, 2 cm inferior to inferior border of patella when leg is relaxed and hanging pendulously from 90° flexed knee; demonstrates normal L4 function

  • pilomotor reflex contraction of smooth muscle within skin; caused by cold-induced contraction of arrector piles muscles; induces appearance of 'gooseflesh'

  • plantar reflex plantar flexion of toes at metatarsophalangeal joints and foot withdrawal, away from stimulus; induced by a firmly moving stimulus across the plantar surface; normal response to plantar stimulation (contrast with response, extensor plantar)

  • postural reflex reflex contraction of trunk and other postural muscles; induced by excursion of the centre of gravity, to maintain upright stance (see reflex, spinal)

  • quadriceps reflex see reflex, patellar

  • spinal reflex response of longitudinal muscles surrounding the spine to sudden and imposed stretch; unexpected flexion (forward) or extension (backward) movements induce reflex contraction of the opposing spinal muscle group, maintaining the erect posture

  • tendon reflex see reflex, deep tendon

Table 1: Percussion responses
Tendon stretch excited by percussionSpinal nerve roots stimulatedReflex response elicited
Biceps brachialisC5-C6Flexion of forearm at elbow
Triceps brachialisC7-C8Extension of forearm at elbow
PatellarL3-L4Knee joint extension
AchillesS1-S2Ankle joint plantarflexion
References in periodicals archive ?
Table 1 (see link at the bottom of the release) lists all of the BIF 1 intercepts with DTR data above 60% Fe and with mass recoveries greater than 15% within the Telecom Hill project (with up to 8m of internal dilution).
According to Rizescu, DTR was particularly happy with Soffront's Customer Portal.
As Adkev evaluated ERP systems, the team quickly realized that DTR ERP offered all of the functionality the company needed, including inventory, bills of material, accounting, payroll and customer service.
At approximately 10:55am, the UBS DTR entered the first part of the Relevant Order, being an Order to sell 18 NCMNK8 at $1.
DTR Styles provides a range of services including style assessments, personal shopping and styling, special event styling, cyber styling, full wardrobe revamping and total makeovers.
biz or leave a message at his voicemail 206-350-1859 to find out how to get all the materials to implement DTR Inc.
DTR test work from composite samples from all drill hole across the 'Discovery Traverse' confirms that a high quality iron concentrate with very low impurities may be produced.
Scheduling-The production scheduling feature of TMM allows plastics processors to access information on all jobs at all levels on a single screen, says DTR.
DTR will also offer The Toolmaker in a stand-alone version that includes nearly all of TMM's functionality.
Toshiba plans to start mass production of HDDs integrating DTR technology in 2009.
The above figure (38,243,242) may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, Fidessa under the DTR.