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 largest muscle in the human body. **Its large size is one of the most characteristic features of the muscular system in humans. It is responsible for movement of the hip and thigh and has the job of keeping the trunk of the body in an erect posture so that we may walk upright.