The transverse muscle of abdomen is a flat, thin muscle that helps to support the core and is located in the abdominal region. This muscle is also known as the transversus abdominis muscle, or simply transversus muscle. Some other synonyms for this muscle include the transverse abdominus, transversus abdominus, or transverse abdominale muscle. Additionally, it may also be referred to as the deep abdominal muscle, internal abdominal oblique, or transverse abdominal muscle. Regardless of what it is called, this muscle plays an important role in maintaining the body's posture and stability.