Shoulder and arm 2

Question 1

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

Answer 1

Superior
Medial
Inferior

Question 2

Which part of the humerus is most commonly fractured?

Answer 2

Surgical neck

Question 3

What is the deltoid tuberosity of the humerus?

Answer 3

V shaped tubercle halfway down the humerus

Question 4

What does the trochlea of the humerus articulate with?

Answer 4

Ulna

Question 5

What does the capitulum of the humerus articulate with?

Answer 5

Radius

Question 6

Which part of the ulna articulates with the humerus?

Answer 6

Coronoid process

Question 7

Which part of the ulna is palpable at the elbow?

Answer 7

Olecranon

Question 8

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

Answer 8

1. Radiocapitular
2. Humeroulnar
3. Superior radioulnar and inferior radioulnar

Question 9

What kind of joint is the elbow joint?

Answer 9

Synovial/hinge

Question 10

What are the three important ligaments of the elbow?

Answer 10

Radial collateral ligament
Ulnar collateral ligament
Anular ligament of the radius

Question 11

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

Answer 11

Ulnar collateral ligament

Question 12

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

Answer 12

Biceps brachii
Coracobrachialis
Brachialis

Question 13

What are the two distal attachments of the biceps brachii?

Answer 13

Radial tuberosity
Deep fascia (bicipital aponeurosis)

Question 14

Where does the short head of biceps originate from?

Answer 14

Coracoid process

Question 15

Where does the long head of biceps originate from?

Answer 15

Supraglenoid tubercle

Question 16

What is the function of biceps brachii?

Answer 16

Supinates then flexes forearm

Stabilises shoulder

Question 17

What is the function of coracobrachialis?

Answer 17

Helps adduct and flex arm

Stabilises shoulder

Question 18

What is the function of brachialis?

Answer 18

Main flexor of forearm

Question 19

Where does brachialis insert into?

Answer 19

Coronoid process and ulnar tuberosity

Question 20

Which nerve innervates the anterior compartment of the arm?

Answer 20

Musculocutaneous nerve (C5-C7)

Question 21

Describe the posterior compartment of the arm

Answer 21

Triceps brachii

Question 22

Which nerve innervates the posterior compartment of the arm?

Answer 22

Radial nerve

Question 23

What is the function of triceps brachii?

Answer 23

Main extensor of forearm

also adduction of arm

Question 24

What are the bursae of the elbow?

Answer 24

Subtendinous bursa
Intratendinous bursa
Olecranon bursa

Question 25

Which direction is most common for shoulder dislocation?

Answer 25

Anterior

Question 26

What risk would there be of fracturing the humerus?

Answer 26

Avascular necrosis of head

Question 27

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

Answer 27

Damage to the axillary nerve (supplies the deltoid muscle)

Question 28

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

Answer 28

The ulnar nerve would be at risk