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Move each muscle to the action it is shown representing.
Move each muscle to the action it is shown representing.
Final answer:Muscles move the body by contracting and working in pairs, with the agonist muscle performing the action and the antagonist muscle opposing it. Synergists and fixators assist and stabilize movements, respectively. Muscle names also reflect their anatomy and function, like the sternocleidomastoid in the neck that helps in head movement.Explanation:Muscles are critical components in our body that accomplish movement by contracting and exerting force on the skeleton. To understand how muscles operate, it's important to know that they work in pairs: when one muscle contracts, the other muscle in the pair usually relaxes to allow movement. This process involves different types of muscles such as agonists, which are the prime movers in an action, and antagonists, which resist the movement of agonists.The synergists play a role in assisting the agonists, whilefixatorsstabilize a muscle's origin. For instance, the biceps brachii acts as an agonist when lifting an object, while the brachialis, acting as a synergist, assists by stabilizing the elbow joint. Additionally, the way muscles are arranged on the skeleton asaxialorappendicularmuscles determines their role and function within the body. Axial muscles support the head, neck, and trunk, while appendicular muscles help with limb movements.When studying theskeletal musclesfrom a regional perspective, one begins from the head down towards the lower extremities, identifying the function and movement these muscles contribute to. For instance, the sternocleidomastoid muscle, which is an axial muscle of the neck, originates from the sternum and clavicle and helps in rotating and flexing the head. In contrast, the muscles in the arms, like the biceps and triceps, demonstrate how opposing muscle pairs work by bending and extending the arm at the elbow....