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Determine which is the correct action of the featured muscle. (Pectoralis major) a. lateral rotation of scapula b. abduction of arm c. stabilizes scapula d. lateral rotation of arm e. adduction of arm f. protraction of scapula
Determine which is the correct action of the featured muscle. (Pectoralis major) a. lateral rotation of scapula b. abduction of arm c. stabilizes scapula d. lateral rotation of arm e. adduction of arm f. protraction of scapula
Final answer:The Pectoralis major, a thick fan-shaped muscle on the front of the chest, is primarily associated with the adduction of the arm - option e. It helps in moving the arm towards the body's midline.Explanation:ThePectoralis majoris a thick, fan-shaped muscle located on thesuperior portionof the anterior thorax. Its primary action related to the multiple-choice options you've provided is e. the adduction of the arm. In other words, it assists in moving the arm towards the midline of the body. The Pectoralis major also helps in medially rotating and flexing the humerus, which is the bone of the upper arm or forelimb, forming joints at the shoulder and the elbow. Please remember, there are several actions associated with different muscles of the shoulder complex. Other options listed like the abduction of the arm or lateral rotation of the arm, for instance, are often actions associated with other muscles such as the deltoid or the infraspinatus.Learn more about Pectoralis Major here:brainly.com/question/33440980#SPJ11...