WordNet

an automatic instinctive unlearned reaction to a stimulus (同)reflex response, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned_reflex, physiological reaction
(of leaves) bent downward and outward more than 90 degrees

PrepTutorEJDIC

反射(刺激に対する無意識の反応) / 《複数形で》反射的な動き / (光などの)反射,反射光;映像 / 反射性の / (カメラが)レフ鋼の,反射型の

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/09/07 08:59:22」(JST)

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The brachioradialis reflex (also known as supinator reflex [1])is observed during a neurological exam by striking the brachioradialis tendon (at its insertion at the base of the wrist into the radial styloid process (radial side of wrist around 4 inches proximal to base of thumb)) directly with a reflex hammer when the patient's arm is relaxing. This reflex is carried by the radial nerve (spinal level: C6, C7)

The reflex should cause slight wrist extension and/or radial deviation, supination^[1] and slight elbow flexion.

References

^ Springhouse (1 July 2007). Neurologic Care. Lippincott Williams & Wilkins. pp. 60–. ISBN 978-1-58255-706-9. Retrieved 4 July 2011.

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