| 单词 | jaw-jerk |
| 释义 | > as lemmasjaw-jerk jaw-jerk n. Medicine a jerk (jerk n.1 3a) of the lower jaw elicited by a downward blow on it when the mouth is open. ΘΚΠ the world > health and disease > healing > diagnosis or prognosis > tests > [noun] > reactions to tests red reflex1864 jaw-jerk1886 pseudoreaction1897 Weil–Felix reaction1919 Schultz–Charlton1922 Kolmer–Wassermann1925 Prausnitz–Küstner1929 1886 A. de Watteville in Brain 8 518 It does not appear to be generally known that a ‘jaw-jerk’ can be readily elicited... The phenomenon is clearly of the same nature as that of the ‘knee-jerk’, and is due to the sudden stretching of the masseter and other muscles of mastication. Hence the name I have ventured to give to it, in preference to the longer and less accurate term mandibular (or masseteric) tendon-reaction (or reflex). 1906 W. A. N. Dorland Illustr. Med. Dict. (ed. 4) s.v. Reflex Jaw-jerk reflex, clonic contraction of the inferior maxilla and other muscles of mastication. 1968 R. Passmore & J. S. Robson Compan. Med. Stud. I. xxiv. 12/2 This jerk [sc. the knee jerk] is one of a whole family of tendon jerks... They include the Achilles tendon or ankle jerk..the biceps and triceps jerks,..and the masseter-temporalis or jaw jerk. < as lemmas |
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