Muscles Origin, Insertion, Action Part 3 Flashcards
Where is the origin of the Trapezius?
Occipital, Spinous Process of Thoracic Vertebrae
Where is the insertion of the Trapezius?
Acromion & Scapular Spine
What is the action of the Trapezius?
Move scapula, elevate clavicle, extend neck
Where is the origin of the Deltoid?
Acromion & Scapular Spine
Where is the insertion of the deltoid?
Humerus
What is the action of the WHOLE Deltoid?
Abduction of shoulder
What is the action of the Anterior Deltoid?
Flexion/Medial rotation
What is the action of the posterior Deltoid?
Extension/Lateral rotation
What is the origin of the supraspinatus?
Supraspinous fossa
Where is the insertion of the supraspinatus?
Greater Tubercle Humerus
What is the action of the supraspinatus?
Abduction Shoulder
What is the origin of subscapularis?
Subscapular fossa
Where is the insertion of the subscapularis?
Lesser Tubercle Humerus
What is the action of the subscapularis?
Medial Rotation Shoulder
Where is the origin of the infraspinatus?
Infraspinous fossa
Where is the insertion of the infraspinatus?
Greater Tubercle Humerus
What is the action of the infraspinatus?
Lateral Rotation Shoulder
Where is the origin of the teres minor?
Scapula
Where is the insertion of the teres minor?
Greater Tubercle Humerus
What is the action of the teres minor?
Lateral Rotation Shoulder
Where is the origin of the pectoralis major?
Ribs 2-6, body of sternum, clavicle
Where is the insertion of the pectoralis major?
Greater Tubercle Humerus
What is the action of the pectoralis major?
Flexion, adduction, medial rotation shoulder
Where is the origin of the latissimus dorsi?
Spinous process of vertebrae, ribs 8 - 12
Where is the insertion of the latissimus dorsi?
Humerus
What is the action of the latissimus dorsi?
Extension, adduction, and medial rotation of shoulder
What are the four rotator cuff muscles?
Subscapularis, Supraspinatus, infraspinatus, teres minor
Where is the origin of the Flexor Digitorum Superficialis?
Humerus, ulna and radius
Where is the insertion of the Flexor Digitorum Superficialis?
Phalanges
What is the action of the Flexor Digitorum Superficialis?
Digit flexion
Where is the origin of the Flexor Digitorum Profundus?
Coronoid Process
Where is the insertion of the Flexor Digitorum Profundus?
Phalanges
What is the action of the Flexor Digitorum Profundus?
Digit flexion
Where is the origin of the Flexor Pollicis Longus?
Radius
Where is the insertion of the Flexor Pollicis Longus?
Pollex phalange
What is the action of the Flexor Pollicis Longus?
Pollex flexion
What are the action of the Intrinsic hand?
Digit Abduction, Adduction, Opposition, Reposition
