In the human body, health is maintained through the interconnectedness of organ systems, proper posture, and stable biochemical metabolism.
Human chorionic gonadotropin (hCG) is a hormone the body makes during pregnancy, and is the chemical detected by urine pregnancy tests. However there are less common reasons -- outside of pregnancy -- when hCG may appear in the urine.
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Although you doubtless appreciate the role your muscular system plays in your daily activities, you may be unaware of the different types of muscle tissue in your body and the special role each plays in keeping you functioning to your best advantage.
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Each time you move a part of your body, you use tendons, which are specialized structures that attach muscles to bones. They're made of tough, nonelastic tissue -- called fibrous connective tissue -- that transfers the force produced when a muscle contracts.
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