Posterior Forearm And Hand Flashcards
Brachioradialis: Origin
Lateral supracondylar ridge of humerus
Brachioradialis: Insertion
Lateral distal end of radius
Brachioradialis: Action
Flex forearm
Brachioradialis: Innervation
Radial n.
Brachioradialis: Blood Supply
Branch of radial artery (namely-radial recurrent a.)
Extensor carpi radialis longus: Origin
Lateral supracondylar ridge of humerus
Extensor carpi radialis longus: Insertion
Base of second metacarpal
Extensor carpi radialis longus: Action
Extension of hand at wrist, abduction (radial abduction) of hand at wrist
Extensor carpi radialis longus: Innervation
Radial n.
Extensor carpi radialis longus: Blood Supply
Radial a.
Extensor carpi radialis brevis: Origin
Lateral epicondyle of humerus
Extensor carpi radialis brevis: Insertion
Base of third metacarpal
Extensor carpi radialis brevis: Action
Extend hand at wrist, abduction (radial abduction) of hand at wrist
Extensor carpi radialis brevis: Innervation
Radial n.
Extensor carpi radialis brevis: Blood Supply
Radial a.
Extensor digitorum: Origin
Lateral epicondyle of humerus
Extensor digitorum: Insertion
Middle and distal phalanges of digits 2-5
Extensor digitorum: Action
Extend all joints (MCP, PIP, DIP) of digits 2-5
Extensor digitorum: Innervation
Radial n.
Extensor digitorum: Blood Supply
Branches of ulnar a. (namely- interosseous recurrent a., posterior interosseous a.)
Extensor digiti minimi: Origin
Lateral epicondyle of humerus
Extensor digiti minimi: Insertion
Middle and distal phalanges of digit 5
Extensor digiti minimi: Action
Extend all joints (MCP, PIP, DIP) of digit 5
Extensor digiti minimi: Innervation
Radial n.
Extensor digiti minimi: Blood Supply
Branches of ulnar a. (namely-interosseous recurrent a.)
Extensor carpi ulnaris: Origin
Lateral epicondyle of humerus
Extensor carpi ulnaris: Insertion
Base of fifth metacarpal
Extensor carpi ulnaris: Action
Extension and adduction (ulnar abduction) hand at wrist
Extensor carpi ulnaris: Innervation
Radial n.
Extensor carpi ulnaris: Blood Supply
Ulnar a.
Supinator: Origin
Lateral epicondyle of humerus, supinator crest and fossa of ulna
Supinator: Insertion
Proximal 1/3 of the radius
Supinator: Action
Supination of the forearm
Supinator: Innervation
Radial n.
Supinator: Blood Supply
Branches of ulnar a. (namely- interosseous recurrent a.)
Abductor Pollicis Longus: Origin
Posterior surfaces of radius and ulna
Abductor Pollicis Longus: Insertion
Base of metacarpal I
Abductor Pollicis Longus: Action
Abduction of thumb; extension of thumb
Abductor Pollicis Longus: Innervation
Radial n.
Abductor Pollicis Longus: Blood Supply
Branches of ulnar a. (namely- posterior interosseous a.)
Extensor Pollicis Brevis: Origin
Posterior surface of radius
Extensor Pollicis Brevis: Insertion
Base of proximal phalanx of thumb
Extensor Pollicis Brevis: Action
Extension of proximal phalanx of thumb
Extensor Pollicis Brevis: Innervation
Radial n.
Extensor Pollicis Brevis: Blood Supply
Branches of ulnar a. (namely- posterior interosseous a.)
Extensor Pollicis Longus: Origin
Posterior surface of ulna
Extensor Pollicis Longus: Insertion
Base of distal phalanx of thumb
Extensor Pollicis Longus: Action
Extension of distal phalanx of thumb
Extensor Pollicis Longus: Innervation
Radial n.
Extensor Pollicis Longus: Blood Supply
Branches of ulnar a. (namely- posterior interosseous a.)
Extensor Indicis: Origin
Posterior surface of ulna
Extensor Indicis: Insertion
Middle and distal phalanges of digit 2
Extensor Indicis: Action
Extension of all joints (MCP, PIP, DIP) of digit 2
Extensor Indicis: Innervation
Radial n.
Extensor Indicis: Blood Supply
Branches of ulnar a. (namely- posterior interosseous a.)
Dorsal interossei: Origin
Adjacent sides of two metacarpals (Dl:metacarpals 1 & 2; D2: metacarpals 2&3; D3: metacarpals 3 & 4; D4: metacarpals 4 &5)
Dorsal interossei: Insertion
Extensor expansion tendons of digits 2,3,4
Dorsal interossei: Action
Abduct digits 2,4; abduct digit 3 toward the radius or ulna
Dorsal interossei: Innervation
Ulnar n.
Dorsal interossei: Blood Supply
Dorsal and palmar metacarpal arteries
Carpals- anterior. Thumb side toward pinky, start on the bottom
Bottom: Scaphoid, Lunate, Triquetrum, Pisiform
Top: Trapezium, Trapezoid, Capitate, Hamate
She Looks Too Pretty Try To Catch Her
Extensor Pollicis Brevis: Origin
posterior surface of radius
Extensor Pollicis Brevis: Origin
posterior surface of radius
Extensor Pollicis Brevis: Insertion
base of proximal phalanx of thumb
Extensor Pollicis Brevis: Action
extension of proximal phalanx of thumb
Extensor Pollicis Brevis: Innervation
Radial n.
Extensor Pollicis Brevis: Blood Supply
branches of ulnar a. (namely- posterior interosseous a.)