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.
Human anatomy is the study of the systems of the body which is made up of cells, tissues, and organs. Human anatomy is important to study to help explain how organs and other structures of the body work. There are eight systems in the human body. Each system relies on the other to keep the body functioning. The systems of the body includes the circulatory, immune, skeletal, excretory, muscular, endocrine, digestive, nervous and respiratory. It is important to understand how human body systems work together. The following is an explanation of how each body system works and the purpose of it.