Answer:
The serratus anterior muscle is used for protaction, that occurs while pushing something.
Step-by-step explanation:
The serratus anterior muscle is the muscle that originates from the outer surface of the 8 or 9 ribs and inserts into the medial margin of the scapula.
The function of this muscle is to pull the scapula or shoulder muscle forward around the rib cage. Therefore, it is largely responsible for the protraction of the scapula, that occurs while pushing something.
Also, the serratus anterior rotates the scapula upwards, that occurs while lifting something overhead.