The human body has approximately 600 to 700 muscles, with some variation depending on how muscles are counted and classified.

• Most sources agree there are about 600 muscles in total, including skeletal, smooth, and cardiac muscles

• Specifically, there are over 600 named skeletal muscles, with estimates ranging from about 639 to over 650 skeletal muscles alone

• The discrepancy in numbers arises because anatomists differ in whether they count certain muscle parts as separate muscles or as parts of a single muscle, and new muscle variations are occasionally identified

• Besides skeletal muscles, there is one cardiac muscle (the heart), and countless smooth muscles found in organs and blood vessels, which are difficult to count individually due to their microscopic and blended nature

In summary, the commonly accepted figure is about 600 muscles in the human body, with around 639 skeletal muscles being a frequently cited specific count. The total number including all muscle types is harder to pin down precisely due to anatomical variation and counting methods