Common pairs of antagonist and agonist muscles exist. In the upper body, the biceps and triceps work to complete actions related to movement of the arm. The quadriceps and hamstrings in the upper leg work to help move the knee joint and perform exercises, such as squats and leg extensions.
Definition of lattice for Students. 1  1 : a structure made of thin strips of wood or metal that cross each other. 2  2 : a window or gate having a lattice.
framework - the underlying structure; providing a factual framework for future research; it is part of the fabric of society. fabric. structure - the manner of construction of something and the arrangement of its parts; artists must study the structure of the human body; the structure of the benzene molecule.