Final answer:
Muscles involved in swinging activities in the coronal plane are primarily associated with the upper extremity, involving abduction and adduction. This includes muscles connected to the pectoral girdle, such as those in the shoulders, which transfer force to the thorax.
Step-by-step explanation:
The question you've asked pertains to anatomy and involves identifying which muscles are activated by swinging activities in the coronal plane. In the coronal plane, the muscles that facilitate motions such as abduction and adduction are primarily associated with the limbs; thus upper extremity movements would involve such muscles. This includes muscles that attach to the pectoral girdle, which encompasses the clavicles and scapulae, transferring force from the upper limbs to the thorax. Movements in the coronal plane include movement of the upper limbs away from the body (abduction) or toward the body (adduction), as well as the lateral flexion of the trunk, which affects muscles of the neck and back. However, because the question specifically mentions a 'bursa-like fashion', which refers to a structure that helps reduce friction between tissues of the body, and you're asking about muscles, there's a mix-up in terminology since bursa are not muscles. Yet, considering the context of swinging activities, the correct answer should be A) Upper extremity.