In the 4th-grade unit 'Structure and Movement of the Human Body,' the focus is on relating the functions of bones, muscles, ...

The back consists of large, complex muscles that support your trunk and spine. There are many types of back muscles, and they are all essential, helping you walk, bend, twist, and hold your body ...

Your abdominal muscles surround your trunk between the rib cage and pelvis and keep your abdominal organs safe. Your core abdominal muscles also support your trunk and allow movements while keeping ...

Muscle loss is a common part of aging. For people over 60, maintaining or developing muscles can help prevent falls, maintain mobility, and prevent loss of function. This may be possible through ...