reflected action or movement

abdominal r’s, contractions about the navel on sharp downward friction of the abdominal wall. It indicates that the spinal cord from the eighth to the twelfth dorsal nerve is intact. Abram’s r., reflex contraction of the lung following stimulation of the chest-wall. Abram’s heart-r., contraction of the myocardium which results when the skin of the precordial region is irritated. It is observed with the fluoroscope. accommodation r., the dilatation or contraction of the pupil in accommodation. Achilles r. See A chillis γ. acromial r., slight reflexion of the forearm with slight internal rotation of the hand on tapping the acromion or coracoid proce : seen in certain conditions. adductor r., on tapping the tendon of the adductor magnus with the thigh in adduction, contraction of the adductors results. anal Σ., contraction of the anal sphincter on irritation of the skin of the anus. ankle-r., ankle clonus: pre ure on the sole with flexion of the foot causes clonic contraction of the ten do A chillis. antic us r. See Piotrowski's sign under sign. Y.-arc, an afferent nerve, a nerve-center, an efferent nerve, and a muscle. Aschner’s r. Same as oculocardiac r. attention r. of pupil, alteration of size in the pupil when the attention is suddenly fixed. Called also Pilts’s ry. aural r., any reflex connected with