Cubital Fossa and Anterior Forearm Flashcards
Abductor pollicis longus attachments
Proximal posterior radius, ulna & interosseous membrane to the base of the 1st metacarpal & trapezium
Brachioradialis attachments
Lateral supracondylar ridge of the humerus to the distal radius lateral to the styloid process
Extensor carpi radialis brevis attachments
Lateral epicondyle of the humerus (common extensor origin) to the base of the 3rd metacarpal
Extensor carpi radialis longus attachments
Lateral supracondylar ridge of the humerus to the base of the 2nd metacarpal
Extensor carpi ulnaris attachments
Lateral epicondyle of the humerus (common extensor origin) to the base of the 5th metacarpal
Extensor digitorum attachments
Lateral epicondyle of the humerus (common extensor origin) to the extensor expansions of digits 2-5
Extensor digiti minimi attachments
Lateral epicondyle of the humerus (common extensor origin) to the digital expansion of the 5th digit
Extensor indicis attachments
Posterior surface of the ulna & interosseous membrane to the digital expansion of the 2nd digit
Extensor pollicis brevis attachments
Posterior radial surface & interosseous membrane to the base of the 1st proximal phalanx
Extensor pollicis longus attachments
Middle 1/3rd of the posterior surface of the ulna & interosseous membrane to the base of the 1st distal phalanx
Flexor carpi radialis attachments
Medial epicondyle (common flexor origin) to the palmar aspect of the base of the 2nd metacarpal
Flexor carpi ulnaris attachments
Medial epicondyle (common flexor origin) of the humerus & proximal ulnar shaft to the pisiform
Flexor digitorum profundus attachments
Anterior proximal two thirds of the ulna & interosseous membrane to the base of the distal phalanges of digits 2-5
Flexor digitorum superficialis attachments
Medial epicondyle (common flexor origin) of the humerus to the sides of the middle phalanges of digits 2-5
Flexor pollicis longus attachments
Anterior surface of the radius & interosseous membrane to the base of the distal phalanx of the thumb
Palmaris longus attachments
Medial epicondyle of the humerus (common flexor origin) to the palmar aponeurosis
Pronator quadratus attachments
Anterior surface of the distal ulna to the anterior surface of the distal radius
Pronator teres attachments
Medial epicondyle & ulnar coronoid process to lateral aspect of the radius
Supinator attachments
Lateral epicondyle of the humerus, radial collateral ligament & supinator crest of the ulna to the lateral surface of the proximal radius
Abductor pollicis longus actions
Abducts & extends thumb at carpometacarpal joint & abducts hand at wrist (radial deviation)
Brachioradialis actions
Flexes the elbow
Extensor carpi radialis brevis actions
Extends & abducts hand at wrist (radial deviation)
Extensor carpi radialis longus actions
Extends & abducts hand at wrist (radial deviation) & assists in flexion of the elbow
Extensor carpi ulnaris actions
Extends & adducts hand at wrist (ulnar deviation)
Extensor digitorum actions
Extends phalanges (primarily at metacarpophalangeal, secondarily at interphalangeal) & hand at wrist
Extensor digiti minimi actions
Extends 5th digit (metacarpophalangeal & interphalangeal)