Upper Extremities Flashcards
Pectoralis Minor
O: Ribs 3-5
I: Coracoid Process of Scapula
A: Depresses scapula, downwardly rotates scapula
Serratus Anterior
O: Ribs 1-8
I: Verterbal border of Scapula
A: Rotates inferior angle of scapula laterally
Trapezius
O: Occipital bone and Spinous processes C7-T12
I: Lateral 1/3 of clavical, spine of scapula, acromion process of scapula
A: Elevates, depresses, rotates, adducts scapula
Deltoid
O: Lateral 1/3 or clavical, spine of scapula, acromion process of scapula
I: Deltoid Tuberosity of Humerus
A: Abducts arm, flexes arm at shoulder, rotates arm medially and laterally, extends arm at shoulder
Latissimus Dorsi
O: Spinous processes of T7-T12, Ribs 9-12, Illiac crest, inferior angle of scapula
I: Intertubercle groove of humerus
A: Extends the arm at the shoulder, adducts the arm, rotates arm medially
Pectoralis Major
O: Sternal end of clavical, ribs 1-6
I: Greater tubercle of humerus
A: Flexes arm at shoulder, rotates arm medially, adducts the arm
Levator Scapulae
O: Transverse processes of C1-C4
I: Vertebral border of scapula
A: Elevates and downwardly rotates scapula
Rhomboid Minor
O: Spinous processes of C7-T1
I: Vertebral Border of Scapula
A: Adducts and downwardly rotates the scapula
Rhomboid Major
O: Spinous processes of T2-T5
I: Vertebral border of Scapula
A: Adducts and downwardly rotates scapula
Supraspinatus
O: Supraspinous fossa of scapula
I; Greater tubercle
A: abducts arm
Infraspinatous
O: Infraspinous fossa
I: Greater tubercle
A: Rotates arm laterally
Teres Minor
O: Later border of scapula
I: Greater tuberlce of humerus
A: Rotates arm laterally
Teres Major
O: Inferior angle of scapula
I: Lesser tubercle of humerus
A: Adducts, rotates arm medially, extends arm at shoulder
Subscapularis
O: Subscapular fossa
I: Lesser tubercle
A: Rotates arm medially
Biceps Brachii Long Head
O: Supraglenoid tubercle of scapula
I: Radial tuberosity of radius
A: Supinates and flexes arm at elbow
Biceps Brachii Short Head
O: Coracoid process of scapula
I: Radial tuberosity of radius
A: Supinates and flexes arm at elbow
Brachialis
O: Anterior humerus
I: Coranoid process of ulna
A: Flexes forearm at elbow
Coracobrachialis
O: Coracoid Process of Scapula
I: Medial humerus
A: Flexes arm at shoulder, adducts arm
Triceps Brachii Long Head
O: Infraglenoid Tubercle of scapula
I: Olecranon process of ulna
A: extends forearm at elbow
Triceps Brachii Lateral Head
O: Posterior humerus
I: Olecranon process of ulna
A: Extends forearm at elbow
Triceps Brachii Medial Head
O: Posterior Humerus
I: Olecranon process of ulna
A: Extends forearm at elbow
Flexor Carpi Radialis
O: Medial epicondyle of humerus
I: 2nd and 3rd metacarpals
A: Flexes hand at wrist, abducts hand
Flexor Carpi Ulnaris
O: Medial epicondyle of humerus, olecranon processs of ulna, shaft of ulna
I: Pisiform, hamate, 5th metacarpal
A: Flexes hand at wrist, adducts hand
Brachioradialis
O: Lateral supracondylar ridge of humerus
I: Styloid process of radius
A: Flexes forearm at elbow, stabilizes elbow at flexion and extension
Extensor Carpi Radialis Longus
O: Lateral supracondylar ridge of humerus
I: 2nd metacarpal
A: Extends hand at wrist, abducts hand
Extensor Carpi Radialis Brevis
O: Lateral epicondyl of humerus
I: 3rd metacarpal
A: Extends had at wrist, abducts hand
Extensor Carpi Ulnaris
O: Lateral epicondyle of humerus and posterior ulna
I: 5th metacarpal
A: Extends hand at wrist, adduct wrist
Opponens Pollicis
O: Trapezium, flexor retinaculum
I: 1st metacarpal
A: Opposes Pollex
Thenar Muscle
Group of muscles on the palm at the base of the thumb.
A: Control movement of thumb
