Extensor muscles in the hand/wrist

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What is the insertion of extensor carpi radialis longus?

dorsal base of 2nd metacarpal

What is the insertion of extensor carpi radialis brevis?

dorsal base of 3rd metacarpal

What is the insertion of extensor carpi ulnaris?

dorsal base of 5th metacarpal

What is the function of extensor digitorium communis?

extends wrist & all finger joints

What is the insertion of extensor digitorium communis?

extensor hoods of digits 2-5

What is the origin of extensor carpi radialis brevis?

lateral epicndyle of humerus

What is the origin of extensor digitorium communis?

lateral epicondyle of humerus

What is the origin of extensor carpi ulnaris?

lateral epicondyle of humerus & posterior ulna

What is the origin of extensor carpi radialis longus?

lateral supracondylar ridge of humerus

What is the innervation of extensor carpi radialis brevis?

radial nerve (C6-7)

What is the innervation of extensor carpi radialis longus?

radial nerve (C6-7)

What is the innervation of extensor carpi ulnaris?

radial nerve (C6-7)

What is the innervation of extensor digitorium communis?

radial nerve (C6-7)

Where is the innervation of extensor muscles?

radial nerve (C6-7)

What is the function of extensor carpi radialis brevis?

wrist extension, radial deviation

What is the function of extensor carpi radialis longus?

wrist extension, radial deviation

What is the function of extensor carpi ulnaris?

wrist extension, ulnar deviation


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