A depression or a groove found on the surface of an organ or tissue, as on the surface of the brain separating adjacent convolutions. Large sulci that divide the brain into lobes as well as the two hemispheres are more often called fissures. Plural: sulci. See fissure. calcarine sulcus See calcarine fissure.
Definition of SYNERGIST. : something (as a chemical or a muscle) that enhances the effectiveness of an active agent; broadly: either member of a synergistic pair.ADVERTISEMENT.noun synÂ·erÂ·gist \-jÉst\. something (as a chemical or a muscle) that enhances the effectiveness of an active agent; broadly: either member of a synergistic pair. ADVERTISEMENT.
A fixator muscle is a muscle that acts as a stabilizer of one part of the body during movement of another part.An example: BICEP CURL: Agonist_Prime mover muscle: Biceps. Antagonist_Opposing muscle group: Triceps. fixator muscle is a muscle that acts as a stabilizer of one part of the body during movement of another part. An example: BICEP CURL: