The correct answer is 630 because the human body has over 600 muscles. Muscles are responsible for movement, stability, and maintaining posture. They are found throughout the body, including the arms, legs, abdomen, and face. Some muscles are voluntary, meaning we can control their movement, while others are involuntary, such as the muscles in our heart and digestive system. Overall, the human body is composed of a complex network of muscles that work together to facilitate various bodily functions.