Anatomy Quiz 2
For the above muscle (subscapularis), identify the following: Action: Origin: Insertion: Nerve Innvervation: Nerve and nerve roots
Action: medially rotate and stabilization of humeral head Origin: subscapular fossa Insertion: Lesser tubercle of the humerus Nerve: upper and lower subscapular Nerve roots: C 5, 6, 7
All four rotator cuff muscles insert on which bone?
Humerus
The scapula contains 3 depressions, also known as fossae. What are the names of the three fossae?
Infraspinous, Supraspinous, and Subscapular
Identify the innervation of the muscle below:
Nerve: Suprascapular Nerve Root: C 4, 5, 6
Which of the rotator cuff muscle is not involved in shoulder rotation?
Supraspinatus
Name two rotator cuff muscles that perform shoulder (glenohumeral joint) ADDuction:
Teres minor and infraspinatus
Identify the bony landmark in the picture below
spine of the scapula or scapular spine
What is the primary function (not muscle action) of the rotator cuff muscle?
stabilization of the glenohumeral joint
Identify the muscle below:
subscapularis
The rotator cuff is made up of the following muscles:
supraspinatus, infraspinatus, Teres minor, subscapularis