Muscles

Muscles are one of those things that most of us take completely for granted, but they are incredibly important for two key reasons: Muscles are the “engine” that your body uses to propel itself.  Muscles turn energy into motion just like a car engine or an electric motor would do. It would be impossible for you to do anything without your muscles. Absolutely everything that you conceive with your brain is expressed as muscular motion. The only ways for you to express an idea are with the muscles of your larynx, mouth and tongue to speck words and the muscles of your fingers when taking with your hands or even dancing, or running.

When most people think of “muscle,” they think about the muscles that we can see. For example, most of us know about the biceps muscles, abs muscles. But there are three unique kinds of muscles in the human body, which are skeletal muscles, smooth muscle, and cardiac muscle. Skeletal muscle is the type of muscle that we can see and feel. When a body builder works out to increase muscle mass, skeletal muscle is what is being exercised. They attach to the skeleton and come in pairs, one muscle to move the bone in one direction and another to move it back the other way. These muscles usually contact voluntarily.  Smooth muscle is found in your digestive system, blood vessels, bladder, airways, and in a female, the uterus. Smooth muscle has the ability to stretch and maintain tension for long period of time. Smooth muscles also contracts involuntarily, meaning that you do not have to think about contracting it because your nervous system controls it automatically. Lastly, the cardiac muscle is found only in your heart, and its big features areenduracne and consistency. It can stretch a limited way, like smooth muscle, and contract with the force of a skeletal muscle. It is a twitch muscle and only contracts involuntarily.

Smooth                                                   skeletal                                                  cardiac