Muscles are often taken for granted. Responsible for every move you make, the primary goal of a muscle is to turn energy into motion. Muscles are broken down into three categories. Skeletal muscles are the type that people in the gym train and what individuals are most commonly aware of. Smooth are the involuntary muscles such as blood vessels, airways and your bladder. The final category is cardiac, the muscles of the heart. It is skeletal muscle, however, that allows humans to both shape their bodies and increase their strength.
Skeletal muscles are incredibly complex, designed to contract when asked to perform any action. If you perform a bicep curl, for example, your brain will send a signal to the nerve cells
