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Cervical range of motion norms9/1/2023 ![]() With the elbow at 90 degrees of flexion, internally rotating the shoulder brings the forearm and hand toward the body (Figure 19).Internal rotation (medial rotation) and external rotation (lateral rotation). Internal rotation is rotating a joint towards the midline and external rotation is rotating a joint away from the midline.įigure 18. Rotation refers to movements made about the longitudinal axis and in the transverse plane. Internal and external rotation (medial and lateral rotation) Depressing the mandible during mastication or phonation to open the mouth.Returning the shoulders to resting anatomical position after shrugging.Elevating the shoulders Examples of depression Elevating the mandible during mastication to close the mouthįigure 16. ![]() Elevation and depression movements of the jaw. These movements only occur in several regions of the body and are a result of movement along the coronal plane.įigure 15.
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