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59 Cards in this Set

  • Front
  • Back
Biceps Brachii Action
Flexes the elbow, Supinates the forearm, Flexes the shoulder
Biceps Brachii Origin
Short head: Coracoid process of scapula Long head: Supraglenoid tubercle of scapula
Biceps Brachii Insertion
Tuberosity of the radius and aponeurosis of the biceps Brachii
Triceps Brachii Action
All Heads: Extend the elbow Long Heads: Extend the shoulder, adducts the shoulder
Triceps Brachii Origin
Long Head: Infraglenoid tubercle of scapula Lateral head: posterior surface of proximal half of humerus Medial head: posterior surface of distal half of humerus
Triceps Brachii Insertion
Olecranon process of ulna
Coracobrachialis Action
Flexes the shoulder, Adducts the shoulder
Coracobrachialis Origin
Coracoid process of scapula
Coracobrachialis Insertion
Medial surface of mid-humeral shaft
Deltoid Action (all fibers)
All Fibers: abduct the shoulder
Deltoid Origin
Lateral one-third of clavicle, a acromion, and spine of scapula
Deltoid Action (posterior fibers)
Posterior Fibers: extends the shoulder, laterally rotates the shoulder, horizontally abducts the shoulder
Deltoid Action (anterior fibers)
Anterior Fibers: flex the shoulder, medially rotates the shoulder, horizontally abducts the shoulder
Deltoid Insertion
Deltoid Tuberosity
Trapezuis Action (upper fibers bilaterally)
Upper Fibers: bilateral- extend the head and neck,
Trapezius Action (upper fibers unilaterally)
unilateral- laterally flex the head and neck to same side, rotates the head and neck to the opposite side, elevates the scapula, upwardly rotates the scapula
Trapezius Action (middle fibers)
Middle Fibers: Adduct the scapula, stabilize the scapula
Trapezius Action (lower fibers)
Lower Fibers: depress the scapula, upwardly rotate the scapula
Trapezius Origin
external occipital protuberance, medial portion of superior nuchal line of occiput, ligamentum nuchae, and spinous process of C-7 to T-12
Trapezius Insertion
lateral one-third of clavicle, acromion, and spine of scapula
Latissimus Dorsi Action
Extends the shoulder, Adducts the shoulder, Medially rotates the shoulder
Latissimus Dorsi Origin
Spinous process of last six thoracic vertebrae, last three or four ribs, thoracolumbar aponeurosis and posterior iliac crest
Latissimus Dorsi Insertion
Crest of the lesser tubercle of the humerus
Teres Major Action
Extends the shoulder, Adducts the shoulder, Medially rotates the shoulder
Teres Major Origin
Lateral side of inferior angle and lower half of lateral border of scapula
Teres Major Insertion
Crest of the lesser tubercle of the humerus
Supraspinatus Action
Abducts the shoulder, Stabilizes head of humerus in glenoid cavity
Supraspinatus Origin
Supraspinous fossa of scapula
Supraspinatus Insertion
Greater tubercle of humerus
Infraspinatus Action
Laterally rotates the shoulder, Adducts the shoulder, Extends the shoulder, Horizontally abducts the shoulder, Stabilizes the head of humerus in glenoid cavity
Infraspinatus Origin
Infraspinous fossa of scapula
Infraspinatus Insertion
Greater tubercle of humerus
Teres Minor Action
Laterally rotates the shoulder, Adducts the shoulder, Extends the shoulder, Horizontally abducts the shoulder, Stabilizes head of humerus in glenoid cavity
Teres Minor Origin
Superior half of lateral border of scapula
Teres Minor Insertion
Lesser tubercle of the humerus
Subscapularis Action
Medially rotates the shoulder, Stabilizes head of humerus in glenoid cavity
Subscapularis Origin
Subscapular fossa of the scapula
Subscapularis Insertion
Lesser tubercle of the humerus
Rhomboid Major and Minor Action
Adducts the scapula, Elevates the scapula, Downwardly rotates the scapula
Rhomboid Major and Minor Origin
Minor: Spinous processes of C-7 and T-1 Major: Spinous processes of T-2 to T-5
Rhomboid Major and Minor Insertion
Medial border of the scapula between spine of the scapula and inferior angle
Levator Scapula Action (unilateral)
Elevates the scapula, Downwardly rotates the scapula, Laterally flexes the head and neck, Rotates the head and neck to the same side
Levator Scapula Action (bilateral)
Extends the head and neck
Levator Scapula Origin
Transverse processes of first through fourth cervical vertebrae
Levator Scapula Insertion
Medial border and superior angle of scapula
Serratus Anterior Action
Origin fixed: Abduct the scapula, Depress the scapula, Holds the medial border of scapula against rib cage Scapula stabilized: forced inhalation
Serratus Anterior Origin
Surfaces of upper eight or nine ribs
Serratus Anterior Insertion
Anterior surface of medial border of scapula
Pectoralis Major Action (all fibers)
Adducts the shoulder, Medially rotates the shoulder, May assist in elevating the thorax in forced inhalation ( if arm is fixed)
Pectoralis Major Action (upper fibers)
Flex the shoulder, Horizontally adduct the shoulder
Pectoralis Major Action (lower fibers)
Extend the shoulder
Pectoralis Major Origin
Medial half of clavicle, sternum, cartilage of ribs one thorough six
Pectoralis Major Insertion
Crest of greater tubercle of humerus
Pectoralis Minor Action
Depresses the scapula, Abducts the scapula, Tilts the scapula anteriorly, Assists in forced inhalation
Pectoralis Minor Origin
Third, fourth, and fifth ribs
Pectoralis Minor Insertion
Coracoid process of scapula
Subclavius Action
Draws clavicle inferiorly and anteriorly, Elevates first rib, Stabilizes the sternoclavicular joint
Subclavius Origin
First rib and cartilage
Subclavius Insertion
Inferior, lateral aspect of the clavicle