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  • Ciliospinal reflex

    Dilation of the pupil following stimulation of the skin of the neck by pinching or scratching.  

  • Ciliary reflex

    The normal contraction of the pupil in accommodation of vision from distant to near.  

  • Chin reflex

    A clonic movement resulting from percussion or stroking of the lower jaw.  

  • Chain reflex

    A reflex initiated by several separate serial reflexes, each activated by the preceding one.  

  • Cat’s eye reflex

    In children, an abnormal pupillary flash or reflection from the eye that may be momentary; may be white, yellow, or pink; and is best seen under diminished natural illumination. This reflex, which may be noticed first by a parent, may be caused by various conditions, the most important of which is retinoblastoma. It is also…

  • Carotid sinus reflex

    A slowing of the heart rate along with a fall in blood pressure when the carotid sinus is massaged. Carotid sinus massage may be used therapeutically as a treatment for paroxysmal supraventricular tachycardia. Applying pressure to the carotid sinus can potentially suppress or halt the heart’s activity. This mechanism underlies garroting, which is distinct from…

  • Cardiovascular reflex

    A sympathetic increase in heart rate when increased pressure in, or distention of, great veins occurs.  

  • Bulbospongiosus reflex

    Contraction of bulbospongiosus muscle on percussing the dorsum of the penis.  

  • Bulbomimic reflex

    In coma, contraction of facial muscles following pressure on the eyeball.  

  • Bulbocavernosus reflex

    Contraction of bulbocavernosus muscle on percussing the dorsum of the penis.  

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