chin reflex

chin reflex
jaw r.

Medical dictionary. 2011.

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Look at other dictionaries:

  • palm-chin reflex — palmomental reflex twitching of the chin produced by stimulating (scratching) the palm; called also Marinesco Radovici r. and Radovici sign …   Medical dictionary

  • Reflex — A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The nasal reflex is a sneeze. * * * 1. An involuntary reaction in response to a stimulus applied to the periphery and transmitted to the… …   Medical dictionary

  • Jaw jerk reflex — 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… …   Wikipedia

  • Palmomental reflex — The palmomental reflex (PMR) is an example of a primitive reflex. As such it is present in infancy, disappears during maturation of the brain during childhood but may reappear due to processes that disrupt the normal cortical inhibitory… …   Wikipedia

  • jaw reflex — jaw jerk reflex closure of the mouth caused by a downward blow on the lower jaw while it hangs passively open; this is most obvious with lesions of the corticospinal tract and is seen less often in healthy individuals. Called also jaw jerk, chin… …   Medical dictionary

  • jaw-jerk reflex — an abnormal reflex elicited by lightly placing the index finger across the chin of the patient and tapping it with a tendon hammer while the jaw hangs loosely open. A brisk upward movement of the jaw indicates an upper motor neurone disorder… …   The new mediacal dictionary

  • corneomental reflex — wrinkling of the muscles on one side of the chin when pressure is applied to the cornea …   Medical dictionary

  • Marinesco-Radovici reflex — palm chin r …   Medical dictionary

  • pollicomental reflex — palm chin r …   Medical dictionary

  • Radovici sign — Ra·do·vi·ci sign (rah do veґche) [Andrй Radovici, French physician, 20th century] see palm chin reflex, under reflex …   Medical dictionary

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