Upper Extremity OIANs Flashcards
Deltoid O
Lateral acromion; crest of the spine of the scapula; lateral 1/3 of the clavicle
Deltoid I
Deltoid tuberosity of humerus
Deltoid A
Flexes and medially rotates arm, abducts arm, extends and laterally rotates arm
Deltoid N
Axillary (C5, C6)
Biceps Brachii O
Short head: Coracoid process.
Long head: supraglenoid tubercle of the scapula
Biceps Brachii I
Radial tuberosity and aponeurosis of the biceps brachii
Biceps Brachii A
Flexes the arm at the shoulder and flexes and supinates forearm at elbow
Biceps Brachii N
Musculocutaneous (C5, C6)
Triceps Brachii O
Long head: Infraglenoid tubercle of the scapula
Lateral head: Upper ½ of posterior humerus
Medial head: Distal 2/3 of medial and posterior humerus
Triceps Brachii I
Posterior surface of olecraneon process of ulna
Triceps Brachii A
Extends the forearm at the elbow and the shoulder
Long head: assists in adduction and extension of shoulder
Triceps Brachii N
Radial (C7, C8)
Brachialis O
Distal ½ of anterior surface of humerus
Brachialis I
Coronoid process and tuberosity of ulna
Brachialis A
Flexes the elbow joint
Brachialis N
Musculocutaneous (C5, C6)
Coracobrachialis O
Apex of the coracoid process of the scapula
Coracobrachialis I
Medial surface of the middle of the shaft of the humerus
Coracobrachialis A
Flexes and adducts the shoulder jt
Coracobrachialis N
Musculocutaneous (C6, C7)
Brachioradialis O
Lateral supracondylar ridge of humerus
Brachioradialis I
Lateral side of distal end of radius
Brachioradialis A
Flexes the forearm at elbow
Brachioradialis N
Radial (C5,C6)
Pronator Teres O
2 heads: medial epicondyle of humerus and coronoid process of ulna
Pronator Teres I
Middle of the lateral surface of the radius
Pronator Teres A
Pronates the forearm
Pronator Teres N
Median (C6, C7)
Flexor Carpi Radialis O
Medial epicondyle of humerus
Flexor Carpi Radialis I
Base of 2nd MC
Flexor Carpi Radialis A
Flexes and abducts the wrist
Flexor Carpi Radialis N
Median (C6, C7,)
Palmaris Longus O
Medial epicondyle of the humerus
Palmaris Longus I
Palmar aponeurosis
Palmaris Longus A
Tenses the palmar fascia, flexes the wrist
Flexor Carpi Ulnaris O
Humeral Head: Medial epicondyle of the humerus
Ulnar head: olecraneon and posterior border of ulna
Flexor Carpi Ulnaris I
Pisiform bone, hook of hamate, base of 5th MC
Flexor Carpi Ulnaris A
Flexes and adducts the wrist
Flexor Carpi Ulnaris N
Ulnar (C7, C8)
Flexor Digitorum Superficialis O
Medial epicondyle of the humerus, coronoid process of the ulna,
Radial head: superior 1/2 of anterior radius
Flexor Digitorum Superficialis I
Bodies of middle phalanges of IP jts, 2nd-5th digits
Flexor Digitorum Superficialis Action
Flexes the proximal IP its of the 2nd-5th digits
Flexor Digitiorum Superficialis N
Median (C7, C8, T1)
Flexor Digitorum Profundus O
Medial and anterior surface of proximal ¾ of ulna and interosseous membrane
Flexor Digitorum Profundus I
Palmar base of distal phalanges of digits 2-5
Flexor Digitorum Profundus A
Flexes the distal IP jts of medial 4 fingers. Assist with flexion of the wrist
Flexor Digitorum Profundus N
1st and 2nd- Median (C8, T1)
3rd and 4th- Ulnar (C8, T1)
Flexor Pollicis Longus O
Ant. surface of body of radius, interosseous membrane, medial border of the coronoid process of the ulna, and/ or the medial epicondyle of humerus
Flexor Pollicis Longus I
Base of the distal phalanx of the thumb, palmar surface
Flexor Pollicis Longus A
Flexes the IP jt of the thumb.
Flexor Pollicis Longus N
Median (C8, T1)
Pronator Quadratus O
Medial side, anterior surface of the distal ¼ of the ulna
Pronator Quadratus I
Lateral side, anterior distal ¼ of anterior radius
Pronator Quadratus A
A: Pronates forearm
Pronator Quadratus N
N: Median (C8, T1)
Extensor Carpi Radialis Longus O
Distal 1/3 of lateral supracondylar ridge of humerus
Extensor Carpi Radialis Longus I
Dorsal base of 3rd MC & slip to 2nd MC
Extensor Carpi Radialis Longus A
Extends & abducts the wrist at the hand
Extensor Carpi Radialis Longus N
Radial (C6, C7)
Extensor Digitorum O
Lateral epicondyle of the humerus
Extensor Digitorum I
Dorsal digital expansion of the 2nd- 5th digits
Extensor Digitorum A
Extends the MCP jts, extends the IP jts of the 2nd- 5th digits
Extensor Digitorum N
Radial (C7, C8)
Extensor Carpi Ulnaris O
Lateral epicondyle of humerus & post border of ulna
Extensor Carpi Ulnaris I
Dorsal base of 5th MC
Extensor Carpi Ulnaris A
Extends and adducts the wrist
Extensor Carpi Ulnaris N
Radial (C7, C8)
Extensor Carpi Radialis Brevis O
Lateral epicondyle of humerus and post border of ulna
Extensor Carpi Radialis Brevis I
Dorsal base of 3rd MC & slip to 2nd MC
Extensor Carpi Radialis Brevis A
Extends & abducts hand at wrist
Extensor Carpi Radialis Brevis N
Radial (C6, C7)
Abductor Pollicis Longus O
Post. surface of the body of the ulna distal to origin of the supinator, interosseous membrane, & post surface of middle 1/3 of the body of the radius
Abductor Pollicis Longus I
Base of 1st MC bone (radial side)
Abductor Pollicis Longus A
Abducts and extends the CMC jt of the thumb, & abducts & assists in wrist flexion
Abductor Pollicis Longus N
Radial (C7, C8)
Extensor Digiti Minimi O
Lateral epicondyle of the humerus
Extensor Digiti Minimi I
Extensor expansion of the 5th digit w/ the extensor digitorum tendon
Extensor Digiti Minimi A
Extends MCP jt
Extensor Digiti Minimi N
Radial (C7, C8)
Extensor Pollicis Longus O
Middle 1/3 of the post. surface of the ulna distal to origin of the adductor pollicus longus, & to the interosseous membrane
Extensor Pollicis Longus I
Base of the phalanx of the thumb, dorsal surface
Extensor Pollicis Longus A
Extends IP jt
Extensor Pollicis Longus N
Radial (C8)
Extensor Pollicis Brevis O
Post. surface of the body of the radius distal to the origin of add pollicis longus & to the interosseous membrane
Extensor Pollicis Brevis I
Base of the proximal phalanx of the thumb, dorsal surface
Extensor Pollicis Brevis A
Extends the MCP jt of the thumb, & extends and abducts the CMC jt
Extensor Pollicis Brevis N
Radial (C7, C8)
Extensor Indicis O
Post surface of the body of the ulna distal to the origin of the extensor pollicis longus & to the interosseous membrane
Extensor Indicis I
Extensor expansion of the index finger w/ the extensor digitorum longus tendon
Extensor Indicis A
Extends MCP jt
Extensor Indicis N
Radial (C7, C8)
Supinator O
Lateral epicondyle of humerus, supinator crest of ulna
Supinator I
Lateral, posterior, and anterior surfaces of proximal 1/3 of radius
Supinator A
Supinates forearm
Supinator N
Radial (C6)