Arkansas Esthetician Practice Exam

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Which muscle covers the shoulder?

Bicep
Deltoid
Tricep
Maxillary branch

The correct answer is: Deltoid

The deltoid muscle is the correct choice because it is specifically designed to cover the shoulder joint and give shape to the shoulder. It is a large, triangular muscle that is responsible for the abduction of the arm, allowing for a wide range of motion in the shoulder area. Its placement on top of the shoulder is crucial for both aesthetics and function, making it a key muscle in movements that involve lifting the arms. The bicep primarily functions in the upper arm and is responsible for flexing the elbow, rather than covering the shoulder. The tricep, located at the back of the upper arm, plays a role in extending the elbow but does not encompass the shoulder area. The maxillary branch, which pertains to the facial structure, is unrelated to the muscle groups associated with the shoulder. Thus, the deltoid is the sole muscle that effectively covers and supports the shoulder itself.