Post Forearm

Question 1

Superficial post forearm

Answer 1

Brachioradialis
Proximal: lateral supracondylar ridge of humerus
Distal: lateral distal radius
Radial nerve
Flexion of elbow joint in mid-prone

Extensor carpi radialas longus
Proximal: lateral supracondylar ridge of humerus
Distal: dorsal base of 2nd metacarpal
Radial nerve
Extends and abducts wrist

Extensor carpi radalis brevis
Proximal: lateral epicondyle humerus
Distal: dorsal base 3rd metacarpal
Deep Branch Rdaial nerve
Extend and abduct wrist

Extensor digitoroum
Proximal: lateral epicondyle humerus
Distal: extensor expansion of medial 4 digits
Deep branch radial nerve
Extends medial 4 digits and MCPJ AND IPJ

Extensor digiti mini I
Proximal : lateral epicondyle humerus
Distal: extensor expansion of 5th metacarpal
Deep branch radial nerve
Extends 5th digit and MCP AND IPJS

Extensor carpi ulnar is
Lateral epicondyle humerus
Dorsal base of 5th metacarpal
Deep branch radial nerve
Extend and adduct wrist

Question 2

Deep post forearm

Answer 2

Supinatior
Proximal: lateral epicondyle humerus
Distal: lateral,posterior and anterior of proximal third of radius?
Supinates forearm
Deep branch radial nerve / post IO

Extensor indicies
PROXIMAL: distal posterior ulna and IO membrane
Distal: extensor expansion of 2nd digit
Extends MCPJ PIPJ AND DIPJ of 2nd digit
Deep branch radial nerve

Abductor policis longus
Proximal: latera, dorsal surface of radius,ulna and IO
Distal: base of 1st MCPJ
Abduct thumb and extend CMCJ

Extensor policis longus
PROXIMAL: distal posterior ulna and adjacent IO
Distal: dorsal surface of distal phalanx of thumb
Extends CMC MCP AND IPJ OF THUMB
Extensor policis brevis
PROXIMAL: distal posterior ulna and IO
Distal: dorsal base of proximal phalanx of thumb
Extends promixal phalanx of thumb?