| OCR | oculocardiac reflex; oculocerebrorenal [syndrome]; optical character recognition |
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| OORR | orbicularis oculi reflex response |
| PLR | pupillary light reflex |
| PTR | patellar tendon reflex; patient termination record; patient to return; peripheral total resistance; ... |
| QSART | quantitative sudomotor axon reflex testing |
| vomiting reflex | Vomiting (contraction of the abdominal muscles with relaxation of the cardiac sphincter of the stomach and of the muscles of the throat) elicited by a variety of stimuli, especially one applied to the region of the fauces. Synonym: pharyngeal reflex. (05 Mar 2000) |
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| cephalopalpebral reflex | Contraction of the orbicularis muscle elicited by tapping the vertex of the skull. (05 Mar 2000) |
| Mendel-Bechterew reflex | Percussion of the dorsum of the foot causes flexion of the toes; present in a pyramidal lesion. Synonym: dorsum pedis reflex, Mendel-Bechterew reflex. (05 Mar 2000) |
| Mendel's instep reflex | The foot being firmly supported on its inner side, a sharp tap on the dorsal tendons causes extension of the second to the fifth toes. Synonym: back of foot reflex, dorsum of foot reflex. (05 Mar 2000) |
| Chaddock reflex | <clinical sign> When the external malleolar skin area is irritated, extension of the great toe occurs in cases of organic disease of the corticospinal reflex paths. Synonym: Chaddock reflex, external malleolar sign. (05 Mar 2000) |
| chain reflex | A series of reflexs, each serving as a stimulus for the next. (05 Mar 2000) |
| Perez reflex | Running a finger down the spine of an infant held supported in a prone position will normally cause the whole body to become extended. (05 Mar 2000) |
| Gordon reflex | Dorsal flexion of the great toe produced by firm lateral pressure on the calf muscles. Synonym: paradoxical flexor reflex. (05 Mar 2000) |
| pericardial reflex | A vagal reflex seen during operations involving pericardial manipulation; characterised by signs of vagal stimulation (bradycardia and arterial hypotension). (05 Mar 2000) |
| grasping reflex | An involuntary flexion of the fingers to tactile or tendon stimulation on the palm of the hand, producing an uncontrollable grasp; usually associated with frontal lobe lesions. Compare: darwinian reflex. Synonym: forced grasping reflex, grasp reflex. (05 Mar 2000) |
| periosteal reflex | A muscular contraction in the arm following a tap on the radius or ulna. (05 Mar 2000) |
| grasp reflex | An involuntary flexion of the fingers to tactile or tendon stimulation on the palm of the hand, producing an uncontrollable grasp; usually associated with frontal lobe lesions. Compare: darwinian reflex. Synonym: forced grasping reflex, grasp reflex. (05 Mar 2000) |
| chin reflex | A spasmodic contraction of the temporal muscles following a downward tap on the loosely hanging mandible. Synonym: chin jerk, chin reflex, jaw jerk, mandibular reflex, masseter reflex. (05 Mar 2000) |
| great-toe reflex | <clinical sign> Extension of the great toe and abduction of the other toes instead of the normal flexion reflex to plantar stimulation, considered indicative of pyramidal tract involvement ("positive" Babinski). Synonym: Babinski reflex, Babinski's phenomenon, great-toe reflex, paradoxical extensor reflex, toe phenomenon. (05 Mar 2000) |
| metacarpohypothenar reflex | Flexion of the little finger on tapping the dorsum of the hand; seen in pyramidal tract lesions and is similar to Starling's reflex. (05 Mar 2000) |