What is the largest muscle group in the human body responsible for movement?

Skeletal muscles are indeed the largest muscle group in the human body, primarily responsible for voluntary movement. These muscles are attached to bones by tendons and facilitate movement by contracting and relaxing in response to signals from the nervous system. They also play a crucial role in maintaining posture and generating heat during physical activity.

Skeletal muscles are striated, meaning they have a banded appearance under a microscope, which is why they can be referred to as striated muscles. However, the term "striated muscles" is broader and includes cardiac muscles as well, which are not involved in voluntary movement. Cardiac muscles are specific to the heart and are involuntarily controlled. On the other hand, nonstriated muscles refer to smooth muscles, which are found in various organs and also function involuntarily.

Therefore, while "striated muscles" could be seen as a correct answer due to their inclusion of skeletal muscles, the specificity of the skeletal muscles as the group responsible for voluntary movement makes this choice the clear and most accurate answer in the context of the question.