Identify the bony landmarks that serve as attachment sites for the scapular muscles on the SIL

Question 1

Deltoid Attachments (C5-6, anterior, middle & posterior portions)

Answer 1

From Clavicle, Acromion & Spine of the scapula to the deltoid tuberosity of the humerus

Question 2

Supraspinatus (C4-6)

Answer 2

From the medial 2/3 of the Supraspinous fossa to the superior facet of the greater tubercle of the humerus & to shoulder joint capsule.

Question 3

Infraspinatous (C5-6)

Answer 3

Attachments: From the medial 2/3 of the infraspinous fossa to the middle facet of the greater tubercle of the humerus & to shoulder joint capsule

Question 4

Teres Minor (C5-6)

Answer 4

From the upper 2/3 of the dorsal surface of the lateral border of the scapula to the inferior facet of the greater tubercle of the humerus & to shoulder joint capsule

Question 5

Subscapularis (C5-6)

Answer 5

From the subscapular fossa to the lesser tubercle of the humerus

Question 6

Teres Major (C5-6)

Answer 6

From the dorsal surface of the inferior angle scapula & lower 1/3 of the lateral border of the scapula to the medial lip of the intertubercular sulcus of the humerus