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GBE > Shoulder and arm 2 > Flashcards

Shoulder and arm 2 Flashcards

1
Q

What are the facets on the greater tubercle of the humerus?

A

Superior
Medial
Inferior

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2
Q

Which part of the humerus is most commonly fractured?

A

Surgical neck

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3
Q

What is the deltoid tuberosity of the humerus?

A

V shaped tubercle halfway down the humerus

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4
Q

What does the trochlea of the humerus articulate with?

A

Ulna

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5
Q

What does the capitulum of the humerus articulate with?

A

Radius

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6
Q

Which part of the ulna articulates with the humerus?

A

Coronoid process

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7
Q

Which part of the ulna is palpable at the elbow?

A

Olecranon

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8
Q

What are the three joints that make up the elbow joint?

A
  1. Radiocapitular
  2. Humeroulnar
  3. Superior radioulnar and inferior radioulnar
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9
Q

What kind of joint is the elbow joint?

A

Synovial/hinge

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10
Q

What are the three important ligaments of the elbow?

A

Radial collateral ligament
Ulnar collateral ligament
Anular ligament of the radius

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11
Q

Which ligament of the elbow is the most likely to be torn?

A

Ulnar collateral ligament

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12
Q

What are the muscles of the anterior compartment of the arm?

A

Biceps brachii
Coracobrachialis
Brachialis

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13
Q

What are the two distal attachments of the biceps brachii?

A 
Radial tuberosity
Deep fascia (bicipital aponeurosis)
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14
Q

Where does the short head of biceps originate from?

A

Coracoid process

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15
Q

Where does the long head of biceps originate from?

A

Supraglenoid tubercle

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16
Q

What is the function of biceps brachii?

A

Supinates then flexes forearm

Stabilises shoulder

17
Q

What is the function of coracobrachialis?

A

Helps adduct and flex arm

Stabilises shoulder

18
Q

What is the function of brachialis?

A

Main flexor of forearm

19
Q

Where does brachialis insert into?

A

Coronoid process and ulnar tuberosity

20
Q

Which nerve innervates the anterior compartment of the arm?

A

Musculocutaneous nerve (C5-C7)

21
Q

Describe the posterior compartment of the arm

A

Triceps brachii

22
Q

Which nerve innervates the posterior compartment of the arm?

A

Radial nerve

23
Q

What is the function of triceps brachii?

A

Main extensor of forearm

also adduction of arm

24
Q

What are the bursae of the elbow?

A

Subtendinous bursa
Intratendinous bursa
Olecranon bursa

25
Q

Which direction is most common for shoulder dislocation?

A

Anterior

26
Q

What risk would there be of fracturing the humerus?

A

Avascular necrosis of head

27
Q

What risk would there be of fracturing the surgical neck of the humerus?

A

Damage to the axillary nerve (supplies the deltoid muscle)

28
Q

What risk would there be of fracturing the medial epicondyle of the humerus?

A

The ulnar nerve would be at risk

GBE (15 decks)

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