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MBB > Upper extremity > Flashcards

Upper extremity Flashcards

1
Q

Cubital fossa muscles

A

Medial epicondyle - pronator teres muscle

Lateral epicondyle - brachioradialis muscle

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2
Q

Major extensor muscle of arm

A

Triceps

  • long head (crosses shoulder)
  • medial head (posterior humerus- 1’ extensor)
  • lateral head (posterior humerus- 1’ extensor)
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3
Q

Primary innervation of posterior arm

A

Radial nerve

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4
Q

Primary innervation of anterior forearm

A

Musculocutaneous nerve

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5
Q

What nerve test to test ulnar nerve on forearm

A

Medial antebrachial cutaneous nerve

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6
Q

What does cubital fossa contain?

A

TAN

bicep Tendon, brachial Artery, median Nerve

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7
Q

Axilla space contents

A

Axillary sheath, axillary artery, brachial plexus, axillary vein, lymph nodes, and fat

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8
Q

Axillary space boundaries

A

Medial- serratus anterior
Posterior- subscapularis
Lateral- humerus
Anterior- pec major and minor

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9
Q

3 joints shoulder

A
  1. Glenohumeral joint
  2. AC joint
  3. SC joint
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10
Q

Dislocation of shoulder damages…

A 
Glunohumeral joint (anterior and inferior damage)
-possible axillary nerve damage (test abduction of shoulder deltoid and sensation of deltoid)
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11
Q

Shoulder separation damages…

A

AC joint damage

fall onto tip shoulder

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12
Q

Serratus anterior innervation

A

Long thoracic nerve

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13
Q

Latissimus dorsi innervation

A

Thoracodorsal nerve

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14
Q

Deltoid innervation

A

Axillary nerve

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15
Q

Trapezius innervation

A

CN XI

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16
Q

Trapezius nerve fibers and function

A

Upper-elevation (shoulder shrug)
Middle-retraction (pinch back together)
Lower-depress

17
Q

Annular ligament

A

Shoulder ligament- Hold radial head against radial notch against ulna

18
Q

Fall onto elbow and Elbow effusion, X-ray look normal, what could it be?

A

Non-displaced fracture radial head

19
Q

Movements of elbow

A

Flexion, extension, supination, and protonation

20
Q

Ulna is fixed by….

A

Annular ligament

21
Q

Brachial artery branches into what?

A

Ulnar artery and radial artery

22
Q

Common extensor origin and common injury

A

Lateral epicondyle

Lateral epicondylitis = tennis elbow

23
Q

Common flexor origin and injury

A

Medial epicondyle

Golfer’s elbow

24
Q

Superficial Flexor group muscles forearm:

origin, insertion, action, innervation

A

Pass, fail, pass, fail

  1. pronator teres - medial epicondyle humeral head and ulnar head, mid radius, primate forearm an drew flex elbow, median nerve (c6, c7)
  2. Flexor Capri radialis - medial epicondyle humeral head, MCP 2nd and 3rd digits, flex and abduct wrist, median nerve
  3. Palmaris longus - medial epicondyle humeral head, flexor retinaculum and palmar aponeurosis, flex wrist, median nerve
  4. Flexor Capri ulnaris - medial epicondyle humeral head, pisiform and hook of hamate, flex and adduct wrist, ulnar nerve (C8, T1, some C7)
25
Q

Location brachioradialis on forearm

A

Lateral to pronator teres

26
Q

Flexor digitorum superficialis action and innervation

A 
Flexes PIP
Median nerve (C7, C8)
27
Q

Flexor digitorum profundus action and innervation

A

Flexes DIP

Ulnar nerve

28
Q

Posterior part of arm has predominantly what kind of muscles?

A

Extensor muscles

29
Q

Anterior part of arm has predominantly what kind of muscles?

A

Flexor muscles

30
Q

3 extensor of wrist

A
  1. Extensor Capri radialis longus
  2. Extensor carpi radialis brevis
  3. Extensor carpi ulnaris
31
Q

Reflex test C6 best test?

A

Brachioradialis, radial nerve, flex elbow

32
Q

3 Finger extensor

A
  1. Extensor digitorum communist
  2. Extensor digiti minimi
  3. Extensor indicis
33
Q

Thumb extension muscles

A

Thumbs up
Extensor pollicis brevis ( bottom snuffbox)
Extensor pollicis longus (top snuffbox)

34
Q

de quervain tenosynovitis

A

Inflammed tendon sheath covering tendons in snuffbox

MBB (21 decks)

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