Question

numbers 1 and 2 demonstrate ________.

Explanation:

Identify the anatomical movements

Using the Circumduction and Pronation and Supination knowledge points

• Numbers 1 and 2: The diagram shows the entire upper limb moving in a circular path, where the distal end of the limb (the hand) outlines a circle while the proximal joint (the shoulder) remains relatively stationary. This circular, cone-shaped movement is circumduction.
• Numbers 3 and 4: The diagram shows the rotation of the forearm so that the palm faces posteriorly or downward (number 4, pronation) and anteriorly or upward (number 3, supination).

Answer:

Numbers 1 and 2 demonstrate <blank>circumduction</blank>.