Musculus Scalenus is a group of three muscles that are located in the lateral neck region. These muscles play an important role in respiration and neck movement by controlling the thoracic cavity and neck motion. The Musculus Scalenus is also known as the scalene muscles, and its synonyms include scalenus anterior, scalenus medius, and scalenus posterior. These synonyms are often used interchangeably to refer to the different parts of the Musculus Scalenus. These muscles are important for maintaining proper posture, supporting the head and neck, and providing stability during upper body movement. By understanding the synonyms for Musculus Scalenus, healthcare professionals can communicate effectively with each other and accurately diagnose and treat conditions affecting these important muscles.