Final answer:
The movement in the upper joint space usually refers to superior and inferior rotations of the scapula that occur during limb abduction and adduction, as well as elevation movements.
Step-by-step explanation:
The type of movement that happens in the upper joint space, specifically within the scapula, includes superior and inferior rotations, as well as elevation. When the upper limb is abducted, the scapula performs a superior rotation, where the glenoid cavity moves upward and the medial end of the scapular spine moves downward. Conversely, during upper limb adduction, an inferior rotation of the scapula occurs as the glenoid cavity shifts downward and the medial end of the scapular spine moves upward.
Elevation is another movement that can occur in the upper joint space, generally referring to an upward motion of the scapula or mandible. This wide range of movements in the scapula and other synovial joints is important for the flexibility and function of the upper limb. It is essential for actions such as carrying heavy loads, which rely on these rotational and elevating movements of the scapula to provide increased weight-bearing support.