| nocifensor reflex | Vascular dilation in a part surrounding an injury or in its neighborhood. (05 Mar 2000) |
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| suckling reflex | The reflex liberation of prolactin from the anterior lobe of the hypophysis evoked by stimulation of nerves in the nipple during the act of suckling by the newborn animal. (05 Mar 2000) |
| nose-bridge-lid reflex | Contraction of the orbicularis oculi muscles upon tapping the margin of the orbit, or the bridge or tip of the nose. Synonym: nose-bridge-lid reflex, nose-eye reflex. (05 Mar 2000) |
| nose-eye reflex | Contraction of the orbicularis oculi muscles upon tapping the margin of the orbit, or the bridge or tip of the nose. Synonym: nose-bridge-lid reflex, nose-eye reflex. (05 Mar 2000) |
| darwinian reflex | The tendency of young infants to grasp a bar and hang suspended. Compare: grasping reflex. (05 Mar 2000) |
| superficial reflex | Any reflex, e.g., the abdominal or cremasteric reflex, which is elicited by stimulation of the skin. (05 Mar 2000) |
| decerebrate reflex | <neurology, physiology> Spontaneous extension of elbows, wrists and legs which suggests damage to the diencephalon (midbrain). Seen in cases of stroke and some cases of encephalitis. The decerebrate reflex is a clinical finding characterised by rigid contraction of the extensor and other muscles which maintain an animal in the standing position (antigravity muscles), may be seen in association with a severe stroke, intracranial haemorrhage, cerebral haemorrhage, cerebral toxin or transection of the brain below the level of the anterior corpora quadrigemina but above the vestibular nuclei, clinically may be preceded by decortication. (27 Sep 1997) |
| decorticate reflex | <neurology, physiology> Spontaneous flexion of the elbows with the legs extended. Accompanies severe damage to the contralateral cerebral hemisphere above the midbrain (for example stroke). The destruction of the cerebral cortex, usually due to anoxia, trauma or toxic insult, may proceed to decerebration (a more severe neurologic state). (27 Sep 1997) |
| supination reflex | With the arm supinated to 45 |
| supinator reflex | With the arm supinated to 45 |
| deep reflex | An involuntary muscular contraction following percussion of a tendon or bone. Synonym: jerk. (05 Mar 2000) |
| defense reflex | Automatic reactions of an animal, e.g., raising of hair or feathers, dilation of the pupils, or baring of claws, when alarmed. (05 Mar 2000) |
| supraorbital reflex | Contraction of the orbicularis oculi muscle induced by tapping the supraorbital nerve. Synonym: McCarthy's reflexes, trigeminofacial reflex. (05 Mar 2000) |
| suprapatellar reflex | The patella rises when a tap is given on the quadriceps tendon above the patella. (05 Mar 2000) |
| supraumbilical reflex | A contraction of the upper portion of the rectus abdominis muscle when the skin of the epigastrium above is scratched. Synonym: supraumbilical reflex. (05 Mar 2000) |