Shoulder

Question 1

Describe anterior view of the scapula

Answer 1

Question 2

What are the parts of the clavicle

Answer 2

Acromial end which projects posteriorly, and sternal end which connects to the ribs. It is weakest between middle 2/3 and lateral third

Question 3

What parts make up the scapula anteriorly and posteriorly?

Answer 3

Anteriorly is the subscapular fossa and coracoid process. Posteriorly is the acromion projection, supraspinous fossa, infraspinous fossa, and glenoid supra and infraglenoid tubercles.

Question 4

Sternoclavicular joint

Answer 4

joint capsule, anterior and posterior sternoclavicular ligaments, costoclavicular ligaments

Question 5

Acromioclavicular joint

Answer 5

consists of acromioclavicular ligament, coracoclavicular ligament which is made up of the more medial conoid and distal trapezoid

Question 6

Where do shoulder separations occur and what types are there?

Answer 6

They occur at the acromioclavicular joint. There’s type 1 which is no fracture or tear. Type 2 which has complete tear of acromioclavicular lig. Type 3 where both acromioclavicular lig. and coracoclavicular lig are torn.

Question 7

Glenoid humeral joint consists of…

Answer 7

Glenoid labrum, head of humerus in rotator cuff muscles, and capsule

Question 8

What are the ligaments of glenohumeral joint, location, and their functions?

Answer 8

1. Coracohumeral ligament is in greater tubercle of coracoid process and strengthens superioly.
2. Transverse humeral ligament goes from greater to lesser tubercle of humerus and holds long tendon of biceps brachii
3. Coracoacromial ligment attaches to CC process and acromion and strengthens superiorly.

Question 9

What happens is shoulder dislocation?

Answer 9

Dislocation of glenohumeral joint where the head of humerus falls out glenoid fossa and is usually driven inferior and anterior. Treat with open and close reduction.

Question 10

Circumduction

Answer 10

everything moves together

Question 11

What movement does coroacromial arch limit?

Answer 11

It limits abduction past 180 degrees via the coracoacromial ligament and contact of greater tubercle.

Question 12

What are the five movements of the scapulothoracic joint?

Answer 12

elevation, depression, protraction, retraction, rotation

Question 13

Posterior Thoracoappendicular Muscles (4)

Answer 13

trapezius, latissimus dorsi, rhomboids, levator scapula

Question 14

Anterior Thoracoappendicular Muscles

Answer 14

pectoralis major, pectoralis minor, serratus anterior, subclavius

Question 15

True or False: Teres Major is a shoulder muscle

Answer 15

true

Question 16

Where does deltoid attach, what innervates it, and it’s function?

Answer 16

1. attaches to lateral clavicle, acromion, and spine of scapula and deltoid tuberosity of humerus
2. Innervated by axillary nerve
3. Functions as clavicular head (medial rotation), acromial head (abduct), and spinal head (lateral rotation)

Question 17

Supraspinatus attachment, function, and innervation?

Answer 17

attaches to supraspinous fossa and greater tubercle
2. innervated by suprascapular nerve
3. functions to abduct

Question 18

Infraspinatus attachment, innervation, and function

Answer 18

1. attaches to infraspinous fossa and greater tubercle
2. Innervation from suprascapular nerve
3. Functions by lateral rotation and holding head of humerus in glenoid fossa

Question 19

Teres Minor attachment, innervation, and function?

Answer 19

1. attaches to the lateral border of scapula and the greater tubercle of humerus
2. axillary nerve
3. function by lateral rotation and hold head of humerus in glenoid

Question 20

Subscapularis attachment, innervation, and function?

Answer 20

1. attaches to subscapular fossa and lesser tubercle of humerus
2. Innervation from upper and lower subscapular nerves
3. medially rotates and adducts, hold humerus in glenoid

Question 21

Teres major attachment, innervation, and function?

Answer 21

1.attaches to the inferior angle of the scapula and interubercular groove of humerus
2. innervated by lower subscapular nerve 3. functions to adduct and medially rotate

Question 22

This bursa is found between acromion, coracoacromial ligament and deltoid…

Answer 22

Subacromial bursa which controls movement of supraspinatus under coracoacromial arch

Question 23

This bursa is between the supraspinatus tendon and joint capsule of glenohumeral joint…

Answer 23

Subdeltoid bursa which is involved in movement of deltoid over joint capsule and greater tubercle

Question 24

This bursa us between the subscapularis and neck of scapula…

Answer 24

subcapsular bursa which protects the tendon from root of coracoid process and neck of scapula

Question 25

What is the quadrangular space?

Answer 25

Contains the axillary nerve and humeral circumflex artery. It’s boundaries are the teres minor, teres major, humerus, ad long head of the triceps

Question 26

What does subclavian artery break into

Answer 26

thyrocervical trunk (suprascapular) and dorsal scapular

Question 27

What does axillary artery break into?

Answer 27

subscapular (circumflex)

Question 28

What ligament separates the suprascapular artery and nerve?

Answer 28

the superior transverse scapular ligament