Question

8 multiple choice 1 point which of the following muscles is often weak if you see a \winged scapula\? rhomboid major levator scapulae serratus anterior middle trapezius clear my selection

Explanation:

The serratus anterior muscle is responsible for protracting the scapula and keeping it closely apposed to the thoracic wall. When it is weak, the scapula loses its normal position and can present as a "winged scapula". The rhomboid major is involved in retracting the scapula, the levator scapulae elevates the scapula, and the middle trapezius is also involved in scapular retraction. None of these other muscles' primary functions are related to the scapula - thoracic wall apposition in the way that the serratus anterior is.

Answer:

Serratus anterior