Question

Which muscle does not extend from the posterior surface of the scapula to the greater tubercle of the humerus?

a) Deltoid
b) Infraspinatus
c) Teres major
d) Latissimus dorsi

Answer 1

The deltoid muscle is not the one extending from the posterior surface of the scapula to the greater tubercle of the humerus; it originates from the superior surfaces of the scapula and/or the clavicle.

Step-by-step explanation:

The muscle that does not extend from the posterior surface of the scapula to the greater tubercle of the humerus is the deltoid muscle. The deltoid is identified for its role in abduction of the arm as well as flexing, medial rotation, extension, and lateral rotation. However, it does not extend from the posterior surface of the scapula; instead, it originates from the superior surfaces of the scapula and/or the clavicle. In contrast, muscles such as the infraspinatus, teres major, and latissimus dorsi are more directly involved with the posterior surface of the scapula and the greater tubercle of the humerus.