Movement

tmoov/-ment. A motion or action. See Motion . M., Acquired, one acquired after much practice and the exercise of voluntary control. M., Ameboid, that resembling the movement of the ameba. It consists of a change in form by the throwing out of proce es called pseudopods, the rest of the protoplasm flowing into the proce es. It is observed in certain unicellular organisms and in leukocytes. See Motion , Ameboid. M., A ociated, an involuntary movement in one part when another is moved voluntarily. M., Brown i an, a physical phenomenon observed in aggregations of minute particles, and consisting of a rapid, oscillating movement without change of the relative position of the moving particles. See Brown i an. M., Ciliary, the movement of the proce es of ciliated cells or of the cilia of organisms. It is a rapid movement, generally in one direction. M., Circus, a type of manege move, in which the animal It executes rapid circular ment movements or somersaults. is produced experimentally by injury of the striatum, of the thalamus, or of the eras of one side. M.-cure. See Kinesitherapy . M., Febrile, febrile changes of temperature. M., Fetal, the muscular movements of the fetus in utero. M., Forced, unsymmetric movement of the body from unilateral injury of the motor centers or the conducting paths, as in the following: Index M., when the cephalic part of the body is moved about the stationary caudal part; Rolling M., when the animal rolls on its long axis. M., Molecular. Synonym of Brown i an Movement. M., Sarcodic. Synonym of M., Ameboid.