ameboid movement


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Related to ameboid movement: ciliary movement

movement

 [mo̳v´ment]
1. an act of moving; called also motion.
2. an act of defecation.
active movement movement produced by the person's own muscles.
ameboid movement movement like that of an ameba, accomplished by protrusion of cytoplasm of the cell.
associated movement movement of parts that act together, as the eyes.
brownian movement the peculiar, rapid, oscillatory movement of fine particles suspended in a fluid medium; called also molecular movement.
circus movement the propagation of an impulse again and again through tissue already previously activated by it; the term is usually reserved for the reentry involving an accessory pathway.
molecular movement brownian movement.
passive movement a movement of the body or of the extremities of a patient performed by another person without voluntary motion on the part of the patient.
vermicular m's the wormlike movements of the intestines in peristalsis.

a·me·boid move·ment

a type of movement characteristic of the protoplasm of leukocytes, amebae, and other unicellular organisms; protoplasm streams to a region of the cell where surface pressure is least and forms a balloon-shaped pseudopod; subsequently, the protoplasm may return to the body of the cell, causing retraction of the pseudopod, or the cell's entire volume of protoplasm may flow into the pseudopod, therefore causing the cell to move from its previous position to the location occupied by the pseudopod.
Synonym(s): streaming movement

ameboid movement

[əmē′boid]
Etymology: Gk, amoibe, ameba, eidos, form; L, movere, to move
the ameba-like movement of certain types of body cells that can migrate through tissues, such as leukocytes. The movement generally consists of extension of a portion of the plasma membrane, probably caused by internal rearrangement or movement of the cytoskeleton. See also diapedesis.

a·me·boid move·ment

(ă-mē'boyd mūv'mĕnt)
The form of motion characteristic of the protoplasm of leukocytes, amebae, and other unicellular organisms; involves the massing of the protoplasm at a point where surface pressure is lowest where it extrudes in the form of a pseudopod; the protoplasm may return to the body of the cell, resulting in the retraction of the pseudopod, or the entire mass may flow into the cell body, resulting in locomotion of the cell.

movement

an act of moving; motion.

movement abnormality
includes involuntary movement, lack of flexion or rigidity, hyper- or hypometric.
active movement
movement produced by the animal's own muscles.
ameboid movement
movement like that of an ameba, accomplished by protrusion of cytoplasm of the cell.
associated movement
movement of parts that act together, such as the eyes.
brownian movement
continuous movement of particles suspended within a liquid.
conjugate movement
two parts moving synchronously in the same direction, e.g. the eyes.
disjunctive movement
two parts moving synchronously but in opposite directions.
involuntary movement
a movement which the animal is unable to prevent.
molecular movement
the peculiar, rapid, oscillatory movement of fine particles suspended in a fluid medium.
passive movement
a movement of the body or of the extremities of an animal performed by a person without voluntary motion on the part of the animal.
purposeful movement
see voluntary movement (below).
vermicular m's
the wormlike movements of the intestines in peristalsis.
voluntary movement
performed out of the will of the animal; an intentional purposeful movement.