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FA final exam review > Elbow and Radioulnar Joints > Flashcards

Elbow and Radioulnar Joints Flashcards

1
Q

what is the purpose of the elbow and radioulnar joints?

A
  • UE movement
  • interaction with environment
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2
Q

what bones are involved in the elbow and radioulnar joints?

A

humerus, radius, and ulna

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3
Q

identify the landmarks of the humerus

A
  • Medial epicondyle
  • Lateral epicondyle
  • Supracondyle ridge
  • fossa
    • olecranon
    • radial
    • coronoid
  • Capitulum
  • Trochlea
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4
Q

identify the landmarks of the radius

A
  • head
  • radial tuberosity
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5
Q

identify the landmarks of the ulna

A
  • Olecranon
  • Coronoid process
  • Ulnar tuberosity
  • Trochlear notch
  • Radial notch
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6
Q

what kind of joint is the elbow joint and what ligaments and joints are involved?

A
  • Hinge joint
  • Ligaments involved: ulnar collateral, radial collateral, and annular
  • Joints involved: humeroulnar, radiohumeral
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7
Q

explain where the elbow joint is stable and where it looses some stability

A
  • Most stable in full extension
  • Becomes less stable with 20 degrees of flexion
    • more side-to-side laxity
    • requires ligamentous stability
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8
Q

define carrying angle and what are some factors that influence it

A
  • carrying angle = anatomical position
  • Dominant limb>nondominant
  • females>males due to hip width
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9
Q

describe radioulnar joints and explain what kind of joint they are and the ligaments involved

A
  • Pivot joint
  • Ligaments involved: annular
    Interosseus membrane (between joints)
    2 locations: proximal and distal
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10
Q

what are the 4 elbow flexors?

A

Biceps brachii
Brachialis
Brachioradialis
Pronator teres

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11
Q

what is the 1 elbow extensor

A

triceps brachii

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12
Q

what are the 3 pronators?

A

pronator teres
pronator quadratus
brachioradialis

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13
Q

what are the 3 supinators?

A

supinator
biceps brachii
brachioradialis

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14
Q

biceps brachii origin, insertion, movement, and innervation

A

Origin
- Coracoid process
- Supraglenoid tubercle
Insertion
- Bicipital aponeurosis
- Radial tuberosity
Movement
- Shoulder
- horizontal ADD
- flexion
- ABD in ER
- Elbow flexion
- Forearm supination
Innervation
- C5-C6
- Musculocutaneous nerve

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15
Q

brachialis origin, insertion, movement, and innervation

A

Origin
- Distal anterior humerus
Insertion
- Coronoid process
Movement
- Elbow flexion
Innervation
- C5-C6
- Musculocutaneous nerve

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16
Q

brachioradialis origin, insertion, movement, and innervation

A

Origin
- Lateral supracondylar ridge
Insertion
- Lateral radial styloid process
Movement
- Elbow flexion
- Forearm
- supination from pronation to
neutral
- pronation from supination to
neutral
Innervation
- C5-C8
- Radial nerve

17
Q

triceps brachii origin, insertion, movement, and innervation

A

Origin
- Infraglenoid tubercle
- Posterior humerus
Insertion
- Olecranon process
Movement
- Elbow extension
- Shoulder
- extension
- adduction
- horizontal ABD
Innervation
- C5-C8
- Radial nerve

18
Q

pronator teres origin, insertion, movement, and innervation

A

Origin
- Medial condyloid ridge
- Medial proximal ulna
Insertion
- Mid lateral radius
Movement
- Elbow flexion
- Forearm pronation
Innervation
- C6-C7
- Median nerve

19
Q

pronator quadratus origin, insertion, movement, and innervation

A

Origin
- Distal anterior ulna
Insertion
- Distal anterior radius
Movement
- Forearm pronation
Innervation
- C6-C7
- Median nerve

20
Q

supinator origin, insertion, movement, and innervation

A

Origin
- Lateral epicondyle
- Posterior ulna
Insertion
- Lateral proximal radius (below
radial head)
Movement
- Forearm supination
Innervation
- C5-C8
- Radial nerve

21
Q

elbow flexion

A

hand towards shoulder - 150 degrees

22
Q

elbow extension

A

hand away from shoulder - 0-10 degrees hyper extension

23
Q

supination

A

palm forward/up - 80-90 degrees from neutral

24
Q

pronation

A

palm backward/down - 70-90 degrees from neutral

25
Q

agonists and exercises of elbow flexion

A

A: biceps brachii, brachialis, brachioradialis
E: biceps curl

26
Q

agonists and exercises of elbow extension

A

A: triceps brachii
E: triceps press, triceps push up

27
Q

agonists and exercises of supination

A

A: biceps brachii, supinator, brachioradialis
E: TB supination

28
Q

agonists and exercises of pronation

A

A: pronator teres, pronator quadratus, brachioradialis
E: TB pronation

29
Q

identify tennis elbow technical name, muscles involved, and symptoms

A

Otherwise known as lateral epicondylitis

Muscles involved:
- extensor carpi radialis brevis
- extensor digitorum

Signs and symptoms
- pain in lateral elbow
- decreased wrist ROM
- decreased grip strength
- decreased wrist extension

30
Q

identify golfer’s elbow technical name, muscles involved, and symptoms

A

Otherwise known as medial epicondylitis

Muscles involved:
- medial wrist flexors
- pronators

Signs and symptoms
- pain in medial elbow
- decreased wrist ROM
- weakness with wrist flexion
- weakness with grip strength

FA final exam review (13 decks)

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