Scapulohumeral Muscles Flashcards
0
Q
When does the deltoid become fully effective as an abductor?
A
After the initial 15 degrees of abduction
1
Q
What are the six scapulohumeral muscles?
A
Deltoid, teres major, supraspinatus, infraspinatus, subscapularis, and teres minor
2
Q
What initiates and assists the deltoid in the first 15 degrees of abduction of the arm?
A
Supraspinatus
3
Q
What reduce friction on tendons passing over bones and other areas of resistance in the fibrous layer of the joint capsule?
A
Bursae
4
Q
What happens when axillary nerve is severely damaged?
A
Deltoid atrophies
