下顎反射
WordNet
- move with abrupt, seemingly uncontrolled motions; "The patients legs were jerkings" (同)twitch
- (mechanics) the rate of change of acceleration
- an abrupt spasmodic movement (同)jerking, jolt, saccade
- raising a weight from shoulder height to above the head by straightening the arms
- a dull stupid fatuous person (同)dork
- throw or toss with a quick motion; "flick a piece of paper across the table"; "jerk his head" (同)flick
- holding device consisting of one or both of the opposing parts of a tool that close to hold an object
- the bones of the skull that frame the mouth and serve to open it; the bones that hold the teeth
- the part of the skull of a vertebrate that frames the mouth and holds the teeth
- of animals having jaws of a specified type
PrepTutorEJDIC
- (急に)『ぐいっと引っぱる』(『押す』,『ねじる』,『投げる』)『こと』 / (筋肉の)反射運動;けいれん / 《米俗》うぶな人;まぬけ / (重量挙げの)ジャーク / 《運動を表す副詞[句]を伴って》…‘を'『急に引っぱる』(『押す』,『ねじる』,『投げる』) / …‘を'ぶっきらぼうに(投げ出すように)言う《+『out』+『名,』+『名』+『out』》 / 『急に』(『ぐいっと』)『動く』
- 〈特に牛肉〉‘を'細切りにして干し肉にする
- 〈C〉(上・下の)『あご』 / 《複数形で》口 / 〈C〉下あごのかっこう(感じ) / 《複数形で》あごに似た物;(谷・海峡などの)狭い入口 / 〈U〉《話》おしゃべり;(長い)お説教 / (人に)しゃべる,(特に)くどくど言う;(人に)お説教をする《+『at』+『名』〈人〉》
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/10/07 19:04:01」(JST)
[Wiki en表示]
The jaw jerk reflex or the masseter reflex is a stretch reflex used to test the status of a patient's trigeminal nerve (CN V).[1] The mandible—or lower jaw—is tapped at a downward angle just below the lips at the chin while the mouth is held slightly open. In response, the masseter muscles will jerk the mandible upwards. Normally this reflex is absent or very slight. However in individuals with upper motor neuron lesions the jaw jerk reflex can be quite pronounced.
The jaw jerk reflex can be classified as a dynamic stretch reflex. As with most other reflexes, the response to the stimulus is monosynaptic, with sensory neurons of the trigeminal mesencephalic nucleus sending axons to the trigeminal motor nucleus, which in turn innervates the masseter. This reflex is used to judge the integrity of the upper motor neurons projecting to the trigeminal motor nucleus. Both the sensory and motor aspects of this reflex are through CN V.
It is not part of a standard neurological examination. It is performed when there are other signs of damage to the trigeminal nerve.
References
- Nolte, J. The Human Brain, 5th ed. Mosby: Missouri; 2002, p.307. ISBN 0-323-01320-1
- Blumenfeld, H. Neuroanatomy Through Clinical Cases. Sinauer Associates: Massachusetts; 2002, p. 484. ISBN 0-87893-060-4
- ^ "Neurological Examination". Retrieved 2008-02-17.
Nervous system physiology: neurophysiology - reflex
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Cranial nerve |
- midbrain: Pupillary light reflex
- Accommodation reflex
pons/medulla: Jaw jerk reflex
- Corneal reflex
- Caloric reflex test/Vestibulo-ocular reflex/Oculocephalic reflex
- Pharyngeal (gag) reflex
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Stretch reflexes |
- upper limb: Biceps reflex C5/C6
- Brachioradialis reflex C6
- Triceps reflex C7/C8
lower limb: Patellar reflex L2-L4
- Ankle jerk reflex S1/S2
- Plantar reflex L5-S2
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Primitive reflexes |
- Galant
- Gastrocolic
- Grasp
- Moro
- Rooting
- Stepping
- Sucking
- Tonic neck
- Parachute
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Superficial reflexes |
- Abdominal reflex
- Cremasteric reflex
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Lists |
- general
- alphabetical
- by organ
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Cardiovascular |
- Bainbridge reflex
- Bezold-Jarisch reflex
- Coronary reflex
- Mammalian diving reflex
- Oculocardiac reflex
Baroreflex
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- Reflex bradycardia
- Reflex tachycardia
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Respiratory
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Other |
- Acoustic reflex
- H-reflex
- Golgi tendon reflex
- Optokinetic
- Startle reaction
- Withdrawal reflex (Crossed extensor reflex)
- Symmetrical tonic neck reflex
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Index of the peripheral nervous system
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Description |
- Anatomy
- Nerves
- cranial
- trigeminal
- cervical
- brachial
- lumbosacral plexus
- somatosensory
- spinal
- autonomic
- Physiology
- reflexes
- proteins
- neurotransmitters
- transporters
- Development
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Disease |
- Autonomic
- Congenital
- Injury
- Neoplasms and cancer
- Other
- Symptoms and signs
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Treatment |
- Procedures
- Local anesthetics
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UpToDate Contents
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English Journal
- Brainstem reflexes in patients with familial dysautonomia.
- Gutiérrez JV1, Norcliffe-Kaufmann L2, Kaufmann H3.
- Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology.Clin Neurophysiol.2015 Mar;126(3):626-33. doi: 10.1016/j.clinph.2014.06.028. Epub 2014 Jul 3.
- OBJECTIVE: Several distinctive clinical features of patients with familial dysautonomia (FD) including dysarthria and dysphagia suggest a developmental defect in brainstem reflexes. Our aim was to characterize the neurophysiological profile of brainstem reflexes in these patients.METHODS: We studied
- PMID 25082092
- Temporomandibular joint articulations on working side during chewing in adult females with cross-bite and mandibular asymmetry.
- Yashiro K1, Iwata A, Takada K, Murakami S, Uchiyama Y, Furukawa S.
- Journal of oral rehabilitation.J Oral Rehabil.2015 Mar;42(3):163-72. doi: 10.1111/joor.12266. Epub 2014 Dec 26.
- Influence of mandibular asymmetry and cross-bite on temporomandibular joint (TMJ) articulation remained unknown. This study aimed to investigate whether/how the working-side condylar movement irregularity and articular spaces during chewing differ between patients with mandibular asymmetry/cross-bit
- PMID 25545582
- Oculoleptomeningeal Amyloidosis associated with transthyretin Leu12Pro in an African patient.
- McColgan P1, Viegas S, Gandhi S, Bull K, Tudor R, Sheikh F, Pinney J, Fontana M, Rowczenio D, Gillmore JD, Gilbertson JA, Whelan CJ, Shah S, Jaunmuktane Z, Holton JL, Schott JM, Werring DJ, Hawkins PN, Reilly MM.
- Journal of neurology.J Neurol.2015 Jan;262(1):228-34. doi: 10.1007/s00415-014-7594-2. Epub 2014 Dec 9.
- Oculoleptomeningeal amyloidosis is a rare manifestation of hereditary transthyretin (TTR) amyloidosis. Here, we present the first case of leptomeningeal amyloidosis associated with the TTR variant Leu12Pro mutation in an African patient. A 43-year-old right-handed Nigerian man was referred to our ce
- PMID 25488473
Japanese Journal
- Objective Assessment of Masticatory Jaw Movements As an Outcome of Dental Treatment
- YASHIRO Kahtaro,TAKADA Kenji
- Dentistry in Japan 42, 73-77, 2006-03-01
- NAID 10019595450
- Neural mechanisms controlling jaw-jerk reflex in the cat
- Model-based analysis of jaw-movement kinematics by using jerk-optimal criterion : simulations of human chewing cycles
Related Links
- Signos clínicos (clinicals signs) Telemedicina Contacto: agustindalverme@yahoo.com - emilianolpz@gmail.com
- jerk [jerk] a sudden reflex or involuntary movement. Achilles jerk (ankle jerk) plantar extension of the foot elicited by a tap on the achilles tendon, while the patient is seated on a bed or chair, with feet hanging freely; called also Achilles reflex ...
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★リンクテーブル★
[★]
- 英
- jaw reflex, jaw jerk, mandibular reflex
- 同
- 咬筋反射 masseter reflex
- 関
- 反射
- 正常では軽く口が閉じる。正常者でも見られないことがある。
- 大脳皮質から脳幹(橋)までの経路で障害が存在すれば、下顎反射が亢進する。
[★]
- 急にぐいっと引くこと。急に動くこと
- (筋肉の)反射運動、痙攣。(jerks)痙攣性筋肉運動
- 関
- convulse、convulsion、convulsive、cramp、spasticity
[★]
- 関
- lower jaw、mandibular