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Clinical Anatomy- Term 1 > week 9- Elbow > Flashcards

week 9- Elbow Flashcards

(77 cards)

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1
Q

Name the joints located at the elbow

A

Radioulnar
Humeroulnar
Humeroradial

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2
Q

Name the tuberosity on the elbow

A

Olecranon

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3
Q

When is bony stability unlocked in the elbow

A

Once it flexes beyond 20 degrees of movement

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4
Q

What does the elbow unlocking allow

A

More Varuz and valgus laxity

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5
Q

What is stability in flexion provided by

A

Radial and ulnar collateral ligaments

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6
Q

Type of joint of radio-ulnar

A

Pivot

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7
Q

Describe movement of radioulnar joint

A

Radial head rotates around proximal ulna

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8
Q

Where does medial (ulna) collateral ligament attach

A

From medial epicondyLe of numerous to the coronoid and olecranon process of the ulna

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9
Q

What bone is olecranon located on

A

Ulna

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10
Q

Function of medial collateral ligament

A

Stability to the elbow during flexion
Resists varus stress to the elbow

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11
Q

Function of lateral collateral ligament

A

Stability to the elbow during flexion
Resists varus stress to the elbow

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12
Q

Location of lateral collateral ligament

A

From lateral epicondyle
To head of radius and annular ligament

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13
Q

Function of annular ligament

A

Provides a sling effect around radial head for stability

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14
Q

Flexors of the elbow

A

Biceps brachii
Brachialis
Brachioradialis

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15
Q

Extensors of the elbow

A

Triceps brachii
Anceneus

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16
Q

Supinators of the elbow

A

Supinator
Biceps brachii

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17
Q

Pronators of the elbow

A

Pronator teres
Pronator quadratus

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18
Q

Which muscle allows shoulder abduction

A

Deltoid

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19
Q

Which muscle allows wrist extension

A

Extensor

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20
Q

Which muscle allows finger abduction

A

Dorsal interossei

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21
Q

Which muscle allows finger adduction

A

Palmar interossei

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22
Q

Which muscle allows thumb abduction

A

Adductor pollucus brevis

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23
Q

Which muscle allows thumb adduction

A

Addductor pollucis

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24
Q

Location of capitellum

A

Inferiorly on humerous, most laterally

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25
Location of trochlea
Inferiorly on humerous, most medially
26
Location of coronoid fossa
Superiorly to the trochlea, the indent
27
Location of radial fossa
Superior to thr capitellum
28
Location of coronoid process
Superior on ulna. Upward curve in middle
29
Location of radial notch of the ulna
Superior on ulna, where ulna middle curve meets the radius
30
Location of humeral shaft
Ridge on humerous (middle)
31
Location of ulnar shaft
Ridge on ulna in the middle
32
Location of radial shaft
Ridge on radius in the middle
33
biceps brachii origin
Long head originates from the supraglenoid tubercle of the scapula, and the short head originates from the coracoid process of the scapula
34
biceps brachii insertion
Both heads insert distally into the radial tuberosity and the fascia of the forearm via the bicipital aponeurosis.
35
biceps brachii funcions
Supination of the forearm, flexion at the elbow and shoulder.
36
biceps brachii blood supply
brachial artery
37
supraglenoid tubercle of scapula located
on the distal end of the scapula.
38
what is the synovium
ct that lines the inside of a joint capsule
39
where is the ulnar tuberosity
located immediatly inferior to the coronoid process
40
where is the radial tuberosity
on the medial surface of proximal part of the radius, just distal to the neck.
41
where is the lesser sigmoid notch of the ulna
lateral to the coronoid process, an inward arch
42
where is the greater sigmoid notch of the ulna
superior inward arch to the coronoid process
43
where is the radial/bicepital tuberosity located
inferior to the neck of the radius
44
what does the humerol trochlea articulate with
ulnar trochlear notch
45
flexors of the elbow
Biceps Brachii Brachialis Brachioradialis
46
supinators of the elbow
Supinator Biceps Brachii
47
extensors of the elbow
Triceps brachii Anconeus
48
pronators of the elbow
Pronator teres Pronator quadratus
49
brachialis origin
medial and lateral surfaces of the humerus shaft.
50
brachialis insertion
ulnar tuberosity, immediately distal to the elbow joint
51
brachialis function
flexion at elbow
52
brachialis blood supply
Brachial artery and radial artery innervation also by radial artery
53
brachioradialis origin
proximal aspect of the lateral supracondylar ridge of humerus
54
brachioradialis insertion
distal end of the radius, just proximal to the radial styloid process.
55
brachioradialis action
Flexion at the elbow
56
brachioradialis innervation and blood supply
Innervation: Radial nerve. Blood supply: Radial artery.
57
triceps brachii origin
Long head originates from the infraglenoid tubercle of the scapula. Lateral head originates from the humerus (superior to the radial groove). Medial head originates from the humerus (inferior to the radial groove).
58
triceps brachii insertion
the heads converge into one tendon which inserts onto the olecranon of the ulna.
59
triceps brachii action
Extension of the arm at the elbow.
60
triceps brachii blood supply and innervation
Blood Supply: Deep bracial (profunda brachii) artery Innervation: Radial nerve
61
supinator origin
Originates from the lateral epicondyle of the humerus and the posterior surface of the ulna.
62
supinator inserion
posterior surface of the radius
63
supinator action
supination of formearm
64
supinator
Innervation: Radial nerve (deep branch). Blood supply: Ulnar artery.
65
pronator teres origin
medial epicondyle of the humerus and the coronoid process of the ulna
66
pronator teres insertion
laterally to the mid-shaft of the radius.
67
pronator teres
Pronation of the forearm.
68
pronator teres
Innervation: Median nerve. Blood supply: Ulnar artery
69
pronator quadratus origin
anterior surface of the ulna
70
pronator quadratus insertion
anterior surface of the radius.
71
pronator quadratus action
Pronates the forearm
72
pronator quadratus innervation and blood supply
Innervation: Median nerve (anterior interosseous branch). Blood supply: Ulnar artery
73
where do wrist flexors originate
medial epicondyle
74
where do wrist extensors originate
lateral epicondyle
75
Name locations on radius
Head Neck Radial/bicepital tuberosity (opposite side)
76
Name locations of the proximal ulna
Olecranon process Greater sigmoid notch Lesser sigmoid notch Coronoid process Styloid process at inferior end
77
Name locations on humerous
Head Anatomical Neck (lateral) Greater tubercle Lesser tubercle Surgical neck Bicepital groove Lateral supraconfylar ridge Medial supracondylar ridge Lateral epicondyle Medial epicondyle Trochlea

Clinical Anatomy- Term 1 (16 decks)

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