Skeletal muscles are the muscles that attach to the bones and produce movements of the body. They are also called striated muscles because of their striped appearance under the microscope. Some examples of skeletal muscles in the human body include the biceps brachii, triceps brachii, deltoid, pectoralis major, rectus abdominis, quadriceps femoris, hamstrings, gastrocnemius, and soleus. These muscles are responsible for movements such as bending and extending the arm, lifting objects, rotating the shoulder, flexing the trunk, extending the leg, and planar flexing the foot.