Shoulder Joint

Question 1

Which 3 bones make up the shoulder joint?

Answer 1

Clavicle
Scapula
Humerus

Question 2

Which 3 muscles attach to the greater tubercle of the humerus?

Answer 2

Supraspinatous
Infraspinatous
Teres minor

Question 3

Which muscle attaches to the lesser tubercle of the humerus?

Answer 3

Subscapularis

Question 4

In what structure does the tendon of the long head of biceps run along on the humerus?

Answer 4

Intertubular sulcus

Question 5

Where is the surgical neck found in the humerus?

Answer 5

Between the tubercles and the shaft of the humerus

Question 6

Which muscle lies on the costal surface of the scapula?

Answer 6

Subscapularis

Question 7

What structures arise from the posterior scapula?

Answer 7

Acromion process

Spine of the scapula

Question 8

Which projection arises from the anterior scapula?

Answer 8

Coracoid process

Question 9

Which 2 muscles originate from the coracoid process?

Answer 9

Coracobrachialis

Biceps brachii

Question 10

Which muscle attaches to the coracoid process?

Answer 10

Pectoralis minor

Question 11

Which part of the scapula can the supraspinatus muscle be found?

Answer 11

Superior to the scapula spine

Question 12

Which part of the scapula can the infraspinatus muscle be found?

Answer 12

Inferior to the scapula spine

Question 13

Which muscle attaches to the supraglenoid tubercle on the scapula?

Answer 13

Long head of the biceps brachii

Question 14

Which muscle attaches to the infraglenoid tubercle on the scapula?

Answer 14

Long head of the triceps brachii

Question 15

What is the definition of an intrinsic muscle of the shoulder?

Answer 15

Muscle which originates from the scapula or clavicle and attaches to the humerus

Question 16

What is the definition of an extrinsic muscle of the shoulder?

Answer 16

Originates from the torso and attaches to the bones of the shoulder

Question 17

Where does the deltoid muscle originate from?

Answer 17

The scapula and clavicle

Question 18

Where does the deltoid muscle attach on the humerus?

Answer 18

Deltoid tuberosity

Question 19

Which nerve innervates the deltoid muscle?

Answer 19

Axillary nerve

Question 20

What movements does the anterior deltoid allow?

Answer 20

Flexion
Adduction
Medial rotation

Question 21

What movements does the middle deltoid allow?

Answer 21

15-90 degree abduction of the shoulder

Question 22

What movements does the posterior deltoid allow?

Answer 22

Extension of the shoulder

Question 23

What nerve innervates the teres major?

Answer 23

Lower subscapular nerve

Question 24

Name the 4 rotator cuff muscles

Answer 24

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

Question 25

What movement does infraspinatus allow?

Answer 25

Lateral rotation of the shoulder

Question 26

What nerve innervates the infraspinatus muscle?

Answer 26

Suprascapular nerve

Question 27

What movement does supraspinatus allow?

Answer 27

0-15 degrees abduction of the shoulder

Question 28

What movement does subscapularis allow?

Answer 28

Medial rotation of the shoulder

Question 29

What movement does teres minor allow?

Answer 29

Lateral rotation of the shoulder

Question 30

What nerve innervates the supraspinatus muscle?

Answer 30

Suprascapular nerve

Question 31

What nerve innervates the teres minor muscle?

Answer 31

Axillary nerve

Question 32

Name the extrinsic muscles of the shoulder joint

Answer 32

``` Latissimus dorsi Trapezius Rhomboid major Rhomboid minor Levator scapulae ```

Question 33

What is the function of the levator scapulae?

Answer 33

Elevates scapula

Question 34

What are the 3 intracapsular ligaments called?

Answer 34

Superior glenohumeral Middle glenohumeral Inferior glenohumeral

Question 35

What is the name of the tendon which spans the 2 tubercles of the humerus?

Answer 35

Transverse humeral ligament

Question 36

What is the name of the ligament which forms the coracoacromial arch?

Answer 36

Coracoacromial ligament

Question 37

What is the name of the ligament which runs from the coracoid to the humerus?

Answer 37

Coracohumeral ligament

Question 38

Name the 4 bursae in the shoulder

Answer 38

Subcoracoid Subdeltoid Subacromial Supscapula

Question 39

Which bursa is most commonly affected in bursitis of the shoulder?

Answer 39

Subacromial