A United States Navy enlisted rank indicates where an enlisted Sailor stands within the chain of command, and also defines one's pay grade. An enlisted sailor's rate is similar conceptually to a naval officer's rank. Only Naval Officers carry the term rank in the Navy.
Muscular system is the system of Human Body that provides motor power for all movements of body parts. Muscular system is composed of special tissue called muscular tissue. Muscles have the ability to contract actvely to provide the force for movements of body parts.
The gluteus maximus is the biggest human muscle. Photo Credit Dirima/iStock/Getty Images. The human body contains three types of muscle: smooth, cardiac and skeletal. Skeletal muscles, which are responsible for locomotion and other body movements, likely come to mind first when you discuss muscles. You have more than 600 skeletal muscles in your body, in various shapes and sizes.