When the Arms and Shoulders Are Fixed,by Leaning on the Elbows

question 8

Multiple Choice

When the arms and shoulders are fixed,by leaning on the elbows or grasping onto a table,this muscle can use its insertion as its origin and facilitate an increase in the A-P diameter of the thorax.

• A)Upper trapezius
• B)Pectoralis major
• C)Sternocleidomastoid
• D)Serratus anterior

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