Muscles Flashcards
Supraspinatus
Insertion
Greater tubercle of humerus
Supraspinatus action
Abduction of the shoulder
Supraspinatus
Innervation
Suprascapular nerve
Teres major
Origin
Inferior angle of scapula
Teres major
Insertion
Intertuberacle groove of humerus
Teres major
Action
Extension, adduction , and medial rotation of shoulder
Teres major
Innervation
Lower subscapular nerve
Deltoid
Origin
Clavicle and scapula , acromion and adjacent scapular spine
Deltoid
Insertion
Deltoid tuberosity of humerus
Deltoid
Action
Whole muscle : abduction at shoulder
Deltoid
Innervation
Axillary nerve
Supraspinatus
Origin
Supraspinous fossa of scapula
Biceps brachii
Origin
Short head from the coracoid process
Biceps brachii
Insertion
Tuberosity of radius
Biceps brachii
Action
Flexion at elbow and shoulder supination
Biceps brachii
Innervation
Musculocutaneous nerve
Biceps brachii
Antagonist
Triceps brachii
Extensor digitorum
Origin
Lateral epicondyle of humerus
Extensor digitorum
Insertion
Posterior surfaces of the phalanges fingers 2-5
Extensor digitorum
Action
Extension at finger joints and wrist
Extensor digitorum
Innervation
Deep radial nerve
Palmaris longus
Origin
Medial epicondyle of humerus
Palmaris longus
Insertion
Palmer aponeurosis and flexor retinaculum
Palmaris longus
Action
Flexion at wrist
Palmaris longus
Innervation
Median nerve
Triceps brachii
Origin
Superior lateral margin of humerus
Triceps brachii
Insertion
Olecranon of ulna
Triceps brachii
Action
Extension of elbow
Triceps brachii
Innervation
Radial nerve
Triceps brachii
Antagonists
Biceps brachii
Supinator
Origin
Lateral epicondyle of humerus
Supinator
Insertion
Radial tuberosity
Supinator
Action
Supination
Supinator
Innervation
Deep radial nerve
Supinator
Antagonist
Pronator teres
Pronator teres
Origin
Medial epicondyle of humerus and coracoid process of ulna
Pronator teres
Insertion
Mid lateral surface of radius
Pronator teres
Action
Pronation
Pronator teres
Innervation
Median nerve
Pronator teres
Antagonist
Supinator