Origin/Insertion
What is the origin of the supraspinatus?
Supraspinous fossa of the scapula
What are the actions of the coracobrachialis?
flex the shoulder and Adduct the shoulder
what is the innervation of teres minor?
Axillary nerve
What is the capsular pattern of the GH joint?
ER>ABD> IR
What is the insertion of the subclavius?
inferior surface of middle one-third of clavicle
What are the actions of the subscapularis?
medially rotates the shoulder and stabilizes the head of the humerus in the glenoid cavity.
What is the innervation of infraspinatus?
suprascpular nerve
What passes the radial groove of the humerus?
The radial nerve and the profunda brachii artery
what is the origin of the biceps brachii?
Short head: coracoid process of scapula
Long head: supraglenoid tubercle of scapula
What are the actions of the teres major?
Extend, Adduct, medially rotate the shoulder at the GH joint.
What is the innervation of coracobrachialis?
Musculocutaneous
In the GH joint the glenoid fossa is ____ and the humeral head is ______
Concave, convex
What is the insertion of the Rhomboid Major?
medial border of the scapula between the spine of the scapula and inferior angle?
What are the actions of the serratus anterior?
w/ the scapula fixed: may act to elevate the thorax during forced inhalation
What is the innervation of rhomboid minor?
dorsal scapular
Based on the actions of the pectoralis major, what are some ADLs we talked about that Rossa might have problems with?
difficulty putting on a seatbelt, putting on a coat, grabbing something from her kitchen cabinet, showering, reaching for something in the backseat of her car.
What is the origin of Triceps brachii?
Long head: infraglenoid tubercle of scapula
Lateral head: posterior surface of proximal half of the humerus.
Medial head: olecranon process of the ulna
What are the actions of the deltoid?
Anterior fibers: flex, medially rotate and horizontally adduct the shoulder.
Posterior fibers: extend, laterally rotate and horizontally abduct the shoulder
upper fibers: lateral pectoral
lower fibers: lateral and medial pectoral nerve
Based on what we learned so far, describe the normal positioning of the scapula and the medial border, superior angle, inferior angle within the scapulothoracic joint?
The scapula should rest flat against the thorax and ribs
Medial border: 2-3 in.
Superior angle: around the 2ed rib
inferior angle: around the 7th rib