Arthrex Sports Medicine Onboarding Module #6 Test Questions and Answers A+ Grade

Where does the Pectoralis Major tendon (Pec Major) attach? - ✔✔Origin
-Superior: CLAVICLE- anterior border of the medial half of clavicle
-Medial: STERNUM-anterolateral border of sternum and costal cartilage of ribs 1-7
-Inferomedial: ABDOMEN-aponeurosis of the external abdominal obliques
Insertion
-Lateral: distal lateral aspect of greater tuberosity of humerus/bicipital groove of humerus
What is the function of the pec major? - ✔✔-powerful ADduction (toward body) of humerus
-internal rotation of the humerus (minor role)
What is the common cause of pec major tendon rupture? - ✔✔commonly associated with heavy lifting
(dips or bench press) usually men 20-40 (rare in women), usually report pop or tearing sensation
Where is the most common place to tear the tendon? - ✔✔insertion at the humeral insertion or some at
the musculotendinous junction near the insertion but very rarely occurs at the origins
What are the challenges associated with the repair? - ✔✔-Repairing the retracted tendon to its
anatomic location
-Insertional avulsions leave little remnant tendon tissue with which to identify the insertional footprint
-Chronic rupture cases also present a surgical challenge to locating the site for anatomic repair and may
even require allograft tendon reconstruction
What is arthritis caused by? - ✔✔the articular cartilage degenerates over time bc of lack of blood supply
Most common fracture site of humerus? - ✔✔the surgical neck
Supraspinatus
Infraspinatus
Subscapularis
Teres Minor - ✔✔-Insertion: greater tuberosity (ABduction/forward flexion)
-Insertion: greater tuberosity (external rotation)
-Insertion: lesser tuberosity (internal rotation)
-Insertion: posterior humeral head (external rotation)