If you have a pull-up bar (and are already quite strong), there ... skullcrushers are great options for targeting the biceps and triceps in particular, while compound moves like push-ups work ...
Hug your elbows into your sides and pull your elbows up into a row. From here, keep the elbows stationary and extend the forearms back into the tricep kickback. Come back to the row position and ...
Your tricep muscles contract and pull, while your bicep muscles relax ... Smooth muscle cells make up thin sheets of muscle, such as the stomach lining. Skeletal muscle is joined to bones.