Shoulder

Question 1

Scapula

Answer 1

Large, flat, triangular bone that lies obliquely on the back and side of the thorax
Acromiocalvicular joint
Glenohumeral joint

Question 2

Scapula - acromion

Answer 2

Large, projection
Forming a point of the shoulder that articulates with the clavicle

Question 3

Scapula - coracoid process

Answer 3

Large, anterior projection
Insertion point for the pectoralois minor muscle
Origin point for the short head of biceps brachii and the coracobrachialis muscle

Question 4

Scapula - glenoid fossa

Answer 4

Shallow socket that articulates with the head of the humerus to form the shoulder joint

Question 5

Scapula - inferior angle

Answer 5

Junction between the medial and lateral borders
Overlies the 7th rib

Question 6

Scapula - indraspinous fossa

Answer 6

Large depression on the back of the scapula
Below the spine
Origin for the infraspinatus muscle

Question 7

Scapula - lateral border

Answer 7

Thick border that runs from the infraglenoid tubercle to the inferior angle

Question 8

Scapula - medial border

Answer 8

Thin border that runs between the superior and inferior angles

Question 9

Scapula - neck of the glenoid

Answer 9

Constriction between the glenoid and the body of the scapula

Question 10

Scapula - spine

Answer 10

Triangular ridge of bone that crosses the back of the scapula
From the acromion to the medial border

Question 11

Scapula - superior angle

Answer 11

Junction between the superior and medial borders

Question 12

Scapula - superior border

Answer 12

Thin and sharp border
Separated from the coracoid process by the supraglenoid notch

Question 13

Scapula - subscapular fossa

Answer 13

Slightly ridged fossa on the inner surface of the scapula
Origin for the subscapularis muscle

Question 14

Scapula - supraspinous fossa

Answer 14

Deep fossa
On the back of the scapula, above the spine
Origin for the suprasinatus muscle

Question 15

Scapula - suprascapular notch

Answer 15

A dip in the superior border
Medial to the the coracoid process

Question 16

Clavicle

Answer 16

Slightly S-shaped bone that lies at the base of the neck in front of the first rib
Acromioclavicular joint
Sternoclavicular joint

Question 17

Clavicle - sternal end

Answer 17

Medial end
Articulated with the sternum

Question 18

Clavicle - acromial end

Answer 18

Lateral end
Articulates with the acromion of the scapula

Question 19

Clavicle - Conoid tubercle

Answer 19

Small projection from the posterior edge
Attachment to the conoid part of the coracoclavicular ligament

Question 20

Humerus

Answer 20

Long bone of the arm
Glenohumeral joint
Humeroulnar joint
Humeroradial joint

Question 21

Humerus - head

Answer 21

Forms one-third of a sphere
Articulates with the glenoid fossa of the scapula

Question 22

Humerus - anatomical neck

Answer 22

Constricted area
Joins the head to the greater and lesser tubercles

Question 23

Humerus - greater tubercle

Answer 23

Large projection from the lateral side of the proximal humerus

Question 24

Humerus - lesser tubercle

Answer 24

Projection that provides an insertion point for the subscapularis muscle

Question 25

Humerus - surgical neck

Answer 25

Junction between the tubercles and the shaft Common site for fractures

Question 26

Humerus - intertubercular groove/sulus

Answer 26

Anterior between the tubercles Holds the tendon of biceps brachii muscle Bicipital groove

Question 27

Humerus - shaft

Answer 27

Long and thick shaft that connects the two extremities

Question 28

Humerus - deltoid tuberosity

Answer 28

Roughened area Half-way down the shaft Insertion of the deltoid muscle

Question 29

Humerus - capitumum

Answer 29

Lateral to the two distal condyles Articulates with the radius

Question 30

Humerus - trochlea

Answer 30

Medial do the two distal condyles Articulates with the ulna

Question 31

Humerus - coronoid fossa

Answer 31

Anterior fossa Above the trochlea for the coronoid process of the ulna

Question 32

Humerus - radial fossa

Answer 32

Anterior fossa Above the capitulum for the head of the radius

Question 33

Humerus - Olecranon fossa

Answer 33

Large posterior fossa for the Olecranon of the ulna

Question 34

Humerus - medial epicondyle

Answer 34

Prominence medial to the trochlea Origin to the superficial flexor muscles in the forearm

Question 35

Humerus - lateral epicondyle

Answer 35

Prominence lateral to the capitulum Origin to the extensor muscles in the forearm

Question 36

Sternoclavicular joint

Answer 36

Between the clavicle and sternum With the manubrium of the sternum

Question 37

Sternoclavicular joint - intra articular disk

Answer 37

Like meniscus Fibrocartilage - shock absorber Attached to the joint capsule Divides the space into two Medial side - less movement, plane joint Lateral/clavicular side - more movement, flattened ball and socket, highly mobile

Question 38

Sternoclavicular joint - clavicular notch

Answer 38

Part of the articular surface

Question 39

Sternoclavicular joint - anterior/posterior Sternoclavicular ligaments

Answer 39

Tight and strong

Question 40

Sternoclavicular joint - costoclavicular ligament

Answer 40

Strong Between the clavicle and the 1st rib

Question 41

Sternoclavicular joint - interclavicular ligament

Answer 41

Supports the two medial ends of the clavicle

Question 42

Acromioclavicular joint

Answer 42

With the acromion of the scapular and clavicle Plane synovial joint Gliding movements

Question 43

Acromioclavicular joint - intra articular disk

Answer 43

Fibrocartilage Improve congruence Supports articular surfaces

Question 44

Acromioclavicular joint - superior Acromioclavicular ligament

Answer 44

Tough and strong

Question 45

Acromioclavicular joint - inferior Acromioclavicular ligament

Answer 45

Less strong because it is thinner

Question 46

Acromioclavicular joint - coracoclavicular ligaments

Answer 46

Conoid part - twisted, medial Trapezoid part - lateral

Question 47

Acromioclavicular joint - coracoid process

Answer 47

Stability for the lateral end of the clavicle

Question 48

Glenohumeral joint

Answer 48

The head of the humerus and the glenoid fossa of the scapula Ball and socket synovial joint

Question 49

Glenohumeral joint - capsule

Answer 49

Loose inferiorly to allow movement of the head of the humerus when lifting the arm

Question 50

Glenohumeral joint - coracoacromial ligament

Answer 50

Limits superior movements of the head of the humerus

Question 51

Glenohumeral joint - coracohumeral ligament

Answer 51

Helps the integrity of the joint

Question 52

Glenohumeral joint - transverse humeral ligament

Answer 52

Helps locate the long head of the biceps brachii in the intertubercular sulcus

Question 53

Glenohumeral joint - Glenohumeral ligament

Answer 53

Joint capsule support

Question 54

Nerve supply

Answer 54

Origin of the main nerve of the brachial plexus Suprascapular nerve Axillary nerve Lateral pectoral nerve Musculocutaneous nerves

Question 55

Blood supply

Answer 55

Branches of subclavian and axillary arteries

Question 56

Muscles acting on the scapula

Answer 56

Pectoralis major Rhomboid major Rhomboid minor Trapezius Serratus anterior

Question 57

Muscles acting on the humerus

Answer 57

Latissimus dorsi Pectoralis major

Question 58

Muscles of the shoulder

Answer 58

Supraspinatus Infraspinatus Teres minor Subscapularis Deltoid Teres major Coracobrachialis

Question 59

Muscles of the arm

Answer 59

Biceps brachii Triceps brachii Brachialis