"Jill is doing push-ups. When she pushes off the floor and her elbows are fully straightened (extended), her scapulae move anteriorly and are and when she lowers back down so that her chest is almost touching the floor, her scapulae move posteriorly and are ."

The correct answers are :  protracted, and retracted.

Explanation:

In push up the scapulae are contentiously interchange in between protraction, as move or pushes off the floor while the, and retraction as move to the the floor so floor and chest come in close.

Whenever Jill pushes off and her hands are fully straightened her scapulae are protracted and when she get back down so her chest almost touches the floor retraction occurs in scapulae.

Thus, the correct answer is :  protracted, and retracted.

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