The skeletal and muscular systems not only allow us to move and stand tall, but they are also involved in protecting the body, allowing it to grow, and performing subconscious activities such as breathing and the beating of the heart. The heart, an organ made of muscle, distributes...
The skeletal and muscular systems not only allow us to move and stand tall, but they are also involved in protecting the body, allowing it to grow, and performing subconscious activities such as breathing and the beating of the heart. The heart, an organ made of muscle, distributes...