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.
Definition of telescope. 1  1 : a usually tubular optical instrument for viewing distant objects by means of the refraction of light rays through a lens or the reflection of light rays by a concave mirror â compare reflector, refractor. 2  2 : any of various tubular magnifying optical instruments. 3  3 : radio telescope.