Shoulder

Question 1

Describe how you would determine the medial and lateral ends of the clavicle

Answer 1

Medial end is larger articulating with sternum

Lateral end is smaller articulating with acromion

Question 2

Name the two intracapsular tendons at the shoulder joint and where they attach

Answer 2

Long head of biceps brachii- supraglenoid tubercle

Long head of triceps brachii - infraglenoid tubercle

Question 3

Name the four rotator cuff muscles

Answer 3

Subscapularis
Supraspinatus
Infraspinatus
Teres minor

Question 4

What is the common insertion for the rotator cuff muscles of the posterior scapula?

Answer 4

Greater tubercle of humerus

Question 5

Name the functions of the rotator cuff muscles

Answer 5

All - pull head of humerus into glenoid fossa
Subscapularis- internal rotation
Supraspinatus - abduction

Question 6

What is painful arc syndrome?

Answer 6

Pain as a result of impingement of the supraspinatus between the acromion and head of humerus

Question 7

What is the origin, insertion and function of the teres major muscle?

Answer 7

Origin lateral inferior scapula
Insert intertubecular groove
Adduction

Question 8

What is the origin, insertion and function of the serratus anterior muscle?

Answer 8

Origin ribs 1-8
Insert medial border of scapula
Scapula protraction and rotation

Question 9

What is the origin, insertion and function of the trapezius muscle?

Answer 9

Origin occiput, nuchal ligament and T1-T12
Insert spine of scapula, acromion and lateral 1/3 clavicle
Elevates and retracts scapula

Question 10

What is the origin, insertion and function of the levator scapulae muscle?

Answer 10

Origin C1-C3
Insert upper medial angle of scapula
Scapula elevation

Question 11

What are the origins, insertion and function of the rhomboid muscles?

Answer 11

Origin C4-T5
Insert medial border of scapula
Scapula elevation and protraction

Question 12

What landmarks form the apex of the axilla?

Answer 12

1st rib, clavicle and scapula

Question 13

What landmarks form the medial and lateral borders of the axilla?

Answer 13

Medial serratus anterior and thoracic wall

Lateral intertubecular groove of humerus

Question 14

What landmarks form the anterior border of the axilla?

Answer 14

Pectoralis major and minor and subclavius muscles

Question 15

What landmarks form the posterior border of the axilla?

Answer 15

Subscapularis, teres major and latissimus dorsi muscles

Question 16

The brachial plexus forms an M shape around the axillary artery. Name the 3 peripheral nerves that form the M

Answer 16

Musculocutaneous, median and ulnar

Question 17

What landmarks form the apex of the axilla?

Answer 17

1st rib, clavicle and scapula

Question 18

What landmarks form the medial and lateral borders of the axilla?

Answer 18

Medial serratus anterior and thoracic wall

Lateral intertubecular groove of humerus

Question 19

What landmarks form the anterior border of the axilla?

Answer 19

Pectoralis major and minor and subclavius muscles

Question 20

What landmarks form the posterior border of the axilla?

Answer 20

Subscapularis, teres major and latissimus dorsi muscles

Question 21

The brachial plexus forms an M shape around the axillary artery. Name the 3 peripheral nerves that form the M

Answer 21

Musculocutaneous, median and ulnar