Upper Limb Problem Solving

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Last updated 10:12 PM on 9/28/26

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11 Terms

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claw hand

-action impeded

-muscles affected

-innervation those muscles

-roots of that nerve

-cord/other part brachial plexus that nerve derive from

*additional info

-flexion 4th and 5th

-FDP and med lumbricles

-ulnar n

-C8-T1

-medial cord

*also problem ab and ad fingers; paresthesia 4th and 5th palmar and dorsal

<p><strong>-flexion 4th and 5th</strong></p><p>-FDP <mark data-color="red" style="background-color: red; color: inherit;">and med lumbricles</mark></p><p><strong>-ulnar n</strong></p><p>-C8-T1</p><p>-medial cord</p><p><mark data-color="purple" style="background-color: purple; color: inherit;">*also problem ab and ad fingers; paresthesia 4th and 5th palmar and dorsal</mark></p>

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deltoid atrophy

-action impeded

-muscles affected

-innervation those muscles

-roots of that nerve

-cord/other part brachial plexus that nerve derive from

-GH abduction (espically after 15 degrees) (*not GH flex or ext or ER bc other muscles)

-deltoid, teres minor

-axillary

-C5-6

-posterior cord

*paresthesia possible post/lateral shoulder

<p><strong>-GH abduction (espically after 15 degrees) </strong><mark data-color="red" style="background-color: red; color: inherit;">(*not GH flex or ext or ER bc other muscles)</mark></p><p>-deltoid, teres minor</p><p><strong>-axillary</strong></p><p>-C5-6</p><p>-posterior cord</p><p><mark data-color="purple" style="background-color: purple; color: inherit;">*paresthesia possible post/lateral shoulder</mark></p>

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hand of the benediction

-action impeded

-muscles affected

-innervation those muscles

-roots of that nerve

-cord/other part brachial plexus that nerve derive from

-flex 2nd and 3rd (DIP) (*make hard to pick things up)

-FDP and FDS, medial 2 lumbricles, FPL

-median n

-C6-T1

-lat and med cord

*paresthesia lat hand; wrist can flex but will deviate medially bc just FCU

<p><strong>-flex 2nd and 3rd <mark data-color="red" style="background-color: red; color: inherit;">(DIP)</mark></strong> (*make hard to pick things up)</p><p>-FDP and FDS, medial 2 lumbricles, FPL</p><p><strong>-median n</strong></p><p>-C6-T1</p><p>-lat and med cord</p><p><mark data-color="purple" style="background-color: purple; color: inherit;">*paresthesia lat hand;</mark> wrist can flex but will deviate medially bc just FCU</p>

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thenar wasting

-action impeded

-muscles affected

-innervation those muscles

-roots of that nerve

-cord/other part brachial plexus that nerve derive from

-opposition thumb

-AbPB, FPB, OppP

-reccurent branch median nerve

-C6-T1

-lat and med cord

*no paresthesia bc just reccurent, prox med n fine

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waiter’s tip

-action impeded

-muscles affected

-innervation those muscles

-roots of that nerve

-cord/other part brachial plexus that nerve derive from

-GH ER and Ab, elbow flexion

-deltoid and supraspinatus, infraspinatus and teres minor, BB and brachilais

-suprascapular; axillary; MC

-C5 and C6; C5 and C6; C5-7

-SUPERIOR TRUNK INJURY!

*can happen during delivery

<p><strong>-GH ER and Ab, elbow flexion</strong></p><p>-deltoid and supraspinatus, infraspinatus and teres minor, BB and brachilais</p><p>-suprascapular; axillary; MC</p><p>-C5 and C6; C5 and C6; C5-7</p><p><strong><mark data-color="yellow" style="background-color: yellow; color: inherit;">-SUPERIOR TRUNK INJURY!</mark></strong></p><p><mark data-color="purple" style="background-color: purple; color: inherit;">*can happen during delivery</mark></p>

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winged scapula

-action impeded

-muscles affected

-innervation those muscles

-roots of that nerve

-cord/other part brachial plexus that nerve derive from

-scapular protraction

-serratus anterior

-long thoracic n

-C5,6,7

-roots

*no paresthesia; common bc nerve superficial (crutches, surgeries like masectomy)

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wrist drop

-action impeded

-muscles affected

-innervation those muscles

-roots of that nerve

-cord/other part brachial plexus that nerve derive from

-wrist extension

-post forearm muscles (ECRL, ECRB, ECU)

-radial n

-C5-T1

-posterior cord

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tennis elbow

-action impeded

-muscles affected

-innervation those muscles

-roots of that nerve

-cord/other part brachial plexus that nerve derive from

-wrist extension

^think what makes pain worse!; pain lateral epicondyle

-post forearm muscles (ECRL, ECRB, ECU)

-radial n

-C5-T1

-posterior cord

<p><strong>-wrist extension</strong></p><p>^think what makes pain worse!; <strong>pain lateral epicondyle</strong></p><p>-post forearm muscles (ECRL, ECRB, ECU)</p><p><strong>-radial n</strong></p><p>-C5-T1</p><p>-posterior cord</p>

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golfer’s elbow

-action impeded

-muscles affected

-innervation those muscles

-roots of that nerve

-cord/other part brachial plexus that nerve derive from

-wrist flexion; some finger flex

^think what makes pain worse!; pain medial epicondyle

-ant forearm muscles: FCU and FCR

-mostly median n, bit ulnar n from med ½ FDP

-C6-T1, C8-T1

-lat and med cords; med cord

<p><strong>-wrist flexion;</strong> some finger flex</p><p>^think what makes pain worse!; <strong>pain medial epicondyle</strong></p><p>-ant forearm muscles: FCU and FCR</p><p>-mostly <strong>median n</strong>, bit ulnar n from med ½ FDP</p><p>-C6-T1, C8-T1</p><p>-lat and med cords; med cord</p>

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what happens if occlusion of 2nd part of the axillary artery?

-will compensate with subclavian artery: dorsal scapular & suprascapular going to circumflex scapular and then to subscapular artery

*subclavian: dorsal scapular + suprascapular → circumflex scapular/subscapular → 3rd part axillary a

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if someone has paresthesia in their medial hand…

-what nerve impacted

-what action will happen

-ulnar n

-during wrist flexion it will abduct