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

week 9- Elbow Flashcards

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
Q

Location of trochlea

A

Inferiorly on humerous, most medially

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26
Q

Location of coronoid fossa

A

Superiorly to the trochlea, the indent

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27
Q

Location of radial fossa

A

Superior to thr capitellum

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28
Q

Location of coronoid process

A

Superior on ulna. Upward curve in middle

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29
Q

Location of radial notch of the ulna

A

Superior on ulna, where ulna middle curve meets the radius

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30
Q

Location of humeral shaft

A

Ridge on humerous (middle)

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31
Q

Location of ulnar shaft

A

Ridge on ulna in the middle

32
Q

Location of radial shaft

A

Ridge on radius in the middle

33
Q

biceps brachii origin

A

Long head originates from the supraglenoid tubercle of the scapula, and the short head originates from the coracoid process of the scapula

34
Q

biceps brachii insertion

A

Both heads insert distally into the radial tuberosity

and the fascia of the forearm via the bicipital aponeurosis.

35
Q

biceps brachii funcions

A

Supination of the forearm,
flexion at the elbow and shoulder.

36
Q

biceps brachii blood supply

A

brachial artery

37
Q

supraglenoid tubercle of scapula located

A

on the distal end of the scapula.

38
Q

what is the synovium

A

ct that lines the inside of a joint capsule

39
Q

where is the ulnar tuberosity

A

located immediatly inferior to the coronoid process

40
Q

where is the radial tuberosity

A

on the medial surface of proximal part of the radius, just distal to the neck.

41
Q

where is the lesser sigmoid notch of the ulna

A

lateral to the coronoid process, an inward arch

42
Q

where is the greater sigmoid notch of the ulna

A

superior inward arch to the coronoid process

43
Q

where is the radial/bicepital tuberosity located

A

inferior to the neck of the radius

44
Q

what does the humerol trochlea articulate with

A

ulnar trochlear notch

45
Q

flexors of the elbow

A

Biceps Brachii
Brachialis
Brachioradialis

46
Q

supinators of the elbow

A

Supinator
Biceps Brachii

47
Q

extensors of the elbow

A

Triceps brachii
Anconeus

48
Q

pronators of the elbow

A

Pronator teres
Pronator quadratus

49
Q

brachialis origin

A

medial and lateral surfaces of the humerus shaft.

50
Q

brachialis insertion

A

ulnar tuberosity, immediately distal to the elbow joint

51
Q

brachialis function

A

flexion at elbow

52
Q

brachialis blood supply

A

Brachial artery and radial artery
innervation also by radial artery

53
Q

brachioradialis origin

A

proximal aspect of the lateral supracondylar ridge of humerus

54
Q

brachioradialis insertion

A

distal end of the radius, just proximal to the radial styloid process.

55
Q

brachioradialis action

A

Flexion at the elbow

56
Q

brachioradialis innervation and blood supply

A

Innervation: Radial nerve.
Blood supply: Radial artery.

57
Q

triceps brachii origin

A

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
Q

triceps brachii insertion

A

the heads converge into one tendon which inserts onto the olecranon of the ulna.

59
Q

triceps brachii action

A

Extension of the arm at the elbow.

60
Q

triceps brachii blood supply and innervation

A

Blood Supply: Deep bracial (profunda brachii) artery
Innervation: Radial nerve

61
Q

supinator origin

A

Originates from the lateral epicondyle of the humerus and the posterior surface of the ulna.

62
Q

supinator inserion

A

posterior surface of the radius

63
Q

supinator action

A

supination of formearm

64
Q

supinator

A

Innervation: Radial nerve (deep branch).
Blood supply: Ulnar artery.

65
Q

pronator teres origin

A

medial epicondyle of the humerus and the coronoid process of the ulna

66
Q

pronator teres insertion

A

laterally to the mid-shaft of the radius.

67
Q

pronator teres

A

Pronation of the forearm.

68
Q

pronator teres

A

Innervation: Median nerve.
Blood supply: Ulnar artery

69
Q

pronator quadratus origin

A

anterior surface of the ulna

70
Q

pronator quadratus insertion

A

anterior surface of the radius.

71
Q

pronator quadratus action

A

Pronates the forearm

72
Q

pronator quadratus innervation and blood supply

A

Innervation: Median nerve (anterior interosseous branch).
Blood supply: Ulnar artery

73
Q

where do wrist flexors originate

A

medial epicondyle

74
Q

where do wrist extensors originate

A

lateral epicondyle

75
Q

Name locations on radius

A

Head
Neck
Radial/bicepital tuberosity (opposite side)

76
Q

Name locations of the proximal ulna

A

Olecranon process
Greater sigmoid notch
Lesser sigmoid notch
Coronoid process

Styloid process at inferior end

77
Q

Name locations on humerous

A

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 (15 decks)

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