Final answer:
The body contains three types of muscles: skeletal muscles for voluntary movements, cardiac muscles found only in the heart, and smooth muscles controlling involuntary movements in internal organs.
Step-by-step explanation:
The three types of muscles in the human body are skeletal muscles, cardiac muscles, and smooth muscles. Skeletal muscles, which are attached to our bones, allow us to perform voluntary movements. Cardiac muscle is unique to the heart, where it pumps blood throughout the body. Lastly, smooth muscle is found throughout various internal organs, such as the stomach and intestines, and it helps control involuntary movements.