Forearm Flashcards
What is the Distal attachment of Abductor pollicis longus
Base of 1st MC
What is the Distal attachment of Anconeus
Lateral surface of olecranon + superior part of posterior ulna
What is the Distal attachment of Brachioradialis
Radius styloid process
What is the Distal attachment of Extensor carpi radialis brevis
Base of 3rd MC
What is the Distal attachment of Extensor carpi radialis longus
Base of 2nd MC
What is the Distal attachment of Extensor carpi ulnaris
Base of 5th MC
What is the Distal attachment of Extensor digiti minimi
Base of 5th proximal phalanx
What is the Distal attachment of Extensor digitorum communis
Base of proximal phalanges
What is the Distal attachment of Extensor indicis proprius
Dorsal base 2nd distal phalanx
What is the Distal attachment of Extensor pollicis brevis
Dorsal base 1st proximal phalanx
What is the Distal attachment of Extensor pollicis longus
Dorsal base 1st distal phalanx (passes around Lister’s tubercle)
What is the Distal attachment of Flexor carpi radialis
Base of 2nd + 3rd metacarpals (MC)
What is the Distal attachment of Flexor carpi ulnaris
Thru pisiform to base of 5th MC + hook of hamate
What is the Distal attachment of Flexor digitorum profundus
Base of distal phalanges 2-5
What is the Distal attachment of Flexor digitorum superficialis
Base of middle phalanges 2-5
What is the Distal attachment of Flexor pollicis longus
Base distal phalanx of thumb
What is the Distal attachment of Palmaris Brevis
Palm
What is the Distal attachment of Palmaris longus
Flexor retinaculum (transverse carpal ligament) + becomes palmar aponeurosis
What is the Distal attachment of Pronator quadratus
Anterior distal radius
What is the Distal attachment of Pronator teres
Lateral radius (upper 1/2)
What is the Distal attachment of Supinator
Posterior ulna
What is the proximal attachment of Abductor pollicis longus
Posterior ulna + interosseus membrane
What is the proximal attachment of Anconeus
Lateral humeral epicondyle
What is the proximal attachment of Brachioradialis
Common extensor origin (lateral epicondyle + supracondylar ridge)
What is the proximal attachment of Extensor carpi radialis brevis
Common extensor origin (lateral epicondyle + supracondylar ridge)
What is the proximal attachment of Extensor carpi radialis longus
Common extensor origin (lateral epicondyle + supracondylar ridge)
What is the proximal attachment of Extensor carpi ulnaris
Common extensor origin (lateral epicondyle + supracondylar ridge)
What is the proximal attachment of Extensor digiti minimi
Common extensor origin (lateral epicondyle + supracondylar ridge)
What is the proximal attachment of Extensor digitorum communis
Common extensor origin (lateral epicondyle + supracondylar ridge)
What is the proximal attachment of Extensor indicis proprius
Posterior ulna + interosseus membrane
What is the proximal attachment of Extensor pollicis brevis
Posterior radius
What is the proximal attachment of Extensor pollicis longus
Posterior + middle 1/3 ulna
What is the proximal attachment of Flexor carpi radialis
Common flexor origin (medial epicondyle + upper ulna)
What is the proximal attachment of Flexor carpi ulnaris
Common flexor origin (medial epicondyle + upper ulna)
What is the proximal attachment of Flexor digitorum profundus
Common flexor origin (medial epicondyle + upper ulna)
What is the proximal attachment of Flexor digitorum superficialis
Common flexor origin (medial epicondyle + upper ulna)
What is the proximal attachment of Flexor pollicis longus
Anterior radius + interosseus membrane
What is the proximal attachment of Palmaris Brevis
Flexor retinaculum + Palmar aponeurosis
What is the proximal attachment of Palmaris longus
Common flexor origin (medial epicondyle + upper ulna)
What is the proximal attachment of Pronator quadratus
Anterior distal ulna
What is the proximal attachment of Pronator teres
Common flexor origin (medial epicondyle + upper ulna)
What is the proximal attachment of Supinator
Lateral humeral epicondyle
What innervates Abductor pollicis longus
Radial
What innervates Anconeus
Radial
What innervates Brachioradialis
Radial
What innervates Extensor carpi radialis brevis
Radial
What innervates Extensor carpi radialis longus
Radial
What innervates Extensor carpi ulnaris
Radial
What innervates Extensor digiti minimi
Radial
What innervates Extensor digitorum communis
Radial
What innervates Extensor indicis proprius
Radial
What innervates Extensor pollicis brevis
Radial
What innervates Extensor pollicis longus
Radial
What innervates Flexor carpi radialis
Median
What innervates Flexor carpi ulnaris
Ulnar
What innervates Flexor digitorum profundus
Lateral half: Median; Medial half: Ulnar
What innervates Flexor digitorum superficialis
Median
What innervates Flexor pollicis longus
Median
What innervates Palmaris Brevis
Ulnar - superficial branch
What innervates Palmaris longus
Median
What innervates Pronator quadratus
Median
What innervates Pronator teres
Median
What innervates Supinator
Radial
What movement is performed by Abductor pollicis longus
Extend (away from palm) + abduct (above palm) thumb
What movement is performed by Anconeus
Assist/take up slack during extension + stabilize elbow during pro/supination
What movement is performed by Brachioradialis
Flex elbow
What movement is performed by Extensor Carpi Radialis Brevis
Extend + abduct hand @ wrist joint
What movement is performed by Extensor carpi radialis longus
Extend + abduct hand @ wrist joint
What movement is performed by Extensor carpi ulnaris
Extend + adduct hand @ wrist
What movement is performed by Extensor digiti minimi
Extend 5th MP joint
What movement is performed by Extensor digitorum communis
Extend digits 2-5 MP joints
What movement is performed by Extensor indicis proprius
Extend 2nd digit + wrist
What movement is performed by Extensor pollicis brevis
Extend thumb MP joint
What movement is performed by Extensor pollicis longus
Extend thumb MP + PIP joints
What movement is performed by Flexor carpi radialis
Flex + abduct hand @ wrist
What movement is performed by Flexor carpi ulnaris
Flex + adduct hand @ wrist
What movement is performed by Flexor digitorum profundus
Flex DIP joint + assist hand flex @ wrist
What movement is performed by Flexor digitorum superficialis
Flex MP joint + assist hand flex @ wrist
What movement is performed by Flexor pollicis longus
Flex IP joint of thumb
What movement is performed by Palmaris Brevis
Pull skin over hypothenar eminence –> deepen palm cup + improve grip
What movement is performed by Palmaris longus
Flex hand @ wrist + tighten palmar aponeurosis
What movement is performed by Pronator quadratus
Pronate forearm + stabilize wrist
What movement is performed by Pronator teres
Pronate forearm
What movement is performed by Supinator
Forearm supination
What is the cartilage called between the ulna and the lunate?
Articular Cartilage
What type of bone is found in the tendon of a muscle?
A sesamoid bone
What is the most commonly fractured carpal bone?
Scaphoid
What is the most commonly dislocated carpal bone?
The Lunate
What is a common injury in children involving the radius?
- Nursemaids elbow
- Dislocation of the radius from the annular ligament
What is Dupuytren’s Contracture?
-Results from scarring of the palmar aponeurosiss
What muscle is affected in Tennis elbow?
-Extensor Carpi Radialis Brevis
What passes through the anatomical snuff box?
- Radial Artery
- Superficial Radial Nerve
What are the contents of the Cubital Fossa?
- Brachial Artery
- Median Nerve
- Biceps Tendon
What supplies blood to the proximal half of the scaphoid?
The Anterior interosseous artery
What myotomes are tested in the biceps brachii reflex?
C5-7
What myotomes are tested in the Tricepts Brachii Reflex?
C6-8
What myotomes are tested in the Brachioradialis Reflex?
C5-7
