Final answer:
The movement described is rotational and lateral flexion involving the cervical spine and shoulder girdle. Shoulder joint abduction occurs when the limb moves away from the body, and elevation is the upward movement of the scapula, such as during a shoulder shrug.
Step-by-step explanation:
The type of movement you're describing, where the head is dropped to the shoulder, then to the chest, to the other shoulder, and toward the back, is a complex sequence involving several types of joint movements primarily rotation and some degree of lateral flexion. This involves not just the cervical spine but also the muscles and joints of the shoulder girdle.
Movement at the shoulder joint that moves the upper limb laterally away from the body is called abduction. When you shrug your shoulders, this is referred to as elevation of the scapulae. Taking a step forward involves numerous joints and movements, such as the rotation of the hip joint and the flexion and extension at the knee and ankle joints. The scapulae can perform various movements, including protraction and retraction, as well as depression and elevation, like during a shoulder shrug.