Definition: Muscular is a medical term referring to the muscle tissue in the human body. It refers to the muscles that are responsible for movement, strength and endurance. Muscles work together with bones, ligaments and tendons to carry out various functions such as walking, running, climbing stairs, etc. They also provide support and protection to the skeletal system by holding up the body's weight while supporting other organs like the heart, lungs, brain and spinal cord.
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