Smooth muscles and Cardiac muscles

Smooth muscles

            Smooth muscles have their name for a reason; unlike skeletal muscles, which are long and have orderly striped muscles, they appear smooth even under a microscope. Also unlike skeletal muscles, smooth muscles are involuntary muscles, which means that it doesn't take a conscious thought, they just do it on there own. The bicep and triceps, as seen to the right, would be an example of a smooth muscle.

          

Cardiac muscles

           The cardiac muscles are striped, similar to the skeletal muscles but smaller. Since the cardiac muscles are shaped like skeletal muscles, but are involuntary like smooth muscles they're kind of like a mix between the two. A heart, like on the right, is a type of cardiac muscle. The heart is controlled by something called a sinoatrial node. The sinoatrial node sets a pace for the heart; therefore it’s called a pacemaker.