WebThe snout reflex is present if tapping a tongue blade across the lips causes pursing of the lips. The rooting reflex is present if stroking the lateral upper lip causes movement of the mouth toward the stimulus. The grasp reflex is present if gently stroking the palm of the patient’s hand causes the fingers to flex and grasp the examiner’s ... After the tap of a hammer, the leg is normally extended once and comes to rest. The absence or decrease of this reflex is problematic, and known as Westphal's sign. This reflex may be diminished or absent in lower motor neuron lesions and during sleep. On the other hand, multiple oscillation of the leg (pendular reflex) … See more The patellar reflex, also called the knee reflex or knee-jerk, is a stretch reflex which tests the L2, L3, and L4 segments of the spinal cord. Many animals, most significantly humans, have been seen to have the patellar … See more The term began to be used figuratively from the early 20th century onwards. O. O. McIntyre, in his New York Day-By-Day column in The Coshocton Tribune, October 1921, wrote: "Itinerant preacher stemming Broadway on a soap box. And gets only an occasional knee … See more • Gurfinkel' VS, Lipshits MI, Popov KE (1974). "Is the stretch reflex a basic mechanism in the system of regulation of human vertical posture?". Biofizika (in Russian). 19 (4): 744–8. PMID 4425696. • Pinnock CA, Lin ES, Smith T (2003). "Physiology of the … See more Striking of the patellar tendon with a reflex hammer just below the patella stretches the muscle spindle in the quadriceps muscle. This produces a signal which travels back to the spinal cord … See more Wilhelm Heinrich Erb (1840–1921) and Carl Friedrich Westphal (1833–1890) simultaneously reported the patellar tendon or knee reflex in 1875. The term knee-jerk was recorded by Sir Michael Foster in his Textbook of physiology in 1877: "Striking the … See more • Tonic vibration reflex – Sustained contraction of vibrated muscle • Motor control – Regulation of movement within organisms possessing a nervous system See more
Deep Tendon Reflexes - StatPearls - NCBI Bookshelf
WebThe onset of symptoms is characterized by a sharp, burning, stabbing pain radiating down the posterior or lateral aspect of the leg, to below the knee. Pain is generally superficial … http://www.mybodylanguage.co.uk/kneereflex.htm kit wiseco
Tendon Reflex - an overview ScienceDirect Topics
WebSep 11, 2024 · Femoral nerve lesions can affect the patellar reflex, and tibial nerve lesions can affect the ankle reflex. Clinical Significance. The DTR is used to assess the integrity of the motor system and provides information on the condition of upper and lower motor neurons. A hypoactive or absent reflex will be noted if a patient has an injury or a ... WebDecreased reflexes may imply the loss either of sensory input or of motor neuron or muscle integration. • Reflexes are graded from 0 to 4. Hyperactive reflexes are graded 3 or 4 and suggest the presence of spinal cord pathology or upper motor nerve dysfunction. • Reflex grading is as follows: 0—Absence. 1—Diminished. 2—Normal reflex ... WebNational Center for Biotechnology Information kit witty hager