This muscle is also known as the "shoulder pad muscle" and is triangular shaped
A) Deltoid
This muscle has 3 distinct sets of fibers: Anterior, middle, poasterior?
A) Deltoid
D) Deltoid
Orgin: Laterial 1/3 of clavicle, acromin process and scapula spine
D) Deltoid
Action
Flexes and medial rotation (anterior fibers)
Abduction of shoulders (middle fibers)
Extends and laterally rotates of shoulders (posterior fibers)
A) Deltoid
This muscle has fibers in 3 directions which cross over 3 joints. Sternoclavicular, acromioclavicular, and gleno humeral.
A) Pectoralis Major
Restrictions of this muscle is commonly found in computer users?
D) Pectoralis Major
Orgin:
Medial 1/2 of clavicle
edge of sternal body
Ribs 1-8 (Anterior)
B) Pectoralis Major
D) Pectoralis Major
Insertion:
Bicepitial grove of the humerus
Action:
Adducts and medially rotates shoulders
Flexes the shoulders (Clavical fibers)
Extends shoulders (sternal & costal fibers)
C) Pectoralis Major
The 3 muscles that attach to the coracoid process of the scapula (coracobrachialis, pectoralis minor, brachi)
Orgin: Coracoid process of scapula
Insertion: Middle medial shaft of humerus
Flexes and adducts shoulders
Coracobrachialis
Name this muscle
B) Caracobrachialis
Name muscle A
Pectoralis Major
This muscle ( two heads) crosses over two joints, Glenohumeral and elbow joint.
C) Deltoid
A) Biceps Brachii
Also known as the corkscrew muscle
C) Deltoid
A) Biceps Brachii
Orgin:
Supraglenoid tubercle of scapula (long head)
Concoid process of scapula (Short head)