Shoulder Girdle

Question 1

List the things under shoulder complex

Answer 1

⚫ sternoclavicular
⚫ Acromioclavicular
⚫ glenohumeral
⚫ coracoclavicular
⚫ scapulothoracic

Question 2

Which joint is the only direct connection to the axial skeleton

Answer 2

Sternoclavicular joint

Question 3

SC joint is a —— , —- shaped joint

Answer 3

Synovial
Saddle

Question 4

—- joint of the shoulder girdle is the site of most movement of shoulder girdle

Answer 4

SC joint

Question 5

List the movements of SC joint

Answer 5

⚫ Anteriorly with protraction
⚫ Posteriorly with retraction
⚫ Superiorly with elevation
⚫ Inferiorly with depression

Question 6

AC joint is a —-/—- classification

Answer 6

Acromioclavicular (AC)
Arthrodial/gliding classification

Question 7

movements @ AC joint will be opposite those at SC joint ⚫ (e.g., AC elevation – SC depression. T or F

Answer 7

T

Question 8

Coracoclavicular ligament serves as axis of rotation for associated scapula movements T or F

Answer 8

T

Question 9

Scapulothoracic Articulation
⚫ “physiological” articulation (no bone-to-bone connection) between the —— surface of the scapula (——fossa) & the ——
⚫ scapula rests on 2 muscles (—— & —-)

Answer 9

Scapulothoracic Articulation
⚫ “physiological” articulation (no bone-to-bone connection) between the anterior surface of the scapula (scapular fossa) & the thoracic wall
⚫ scapula rests on 2 muscles (serratus anterior & subscapularis)

Question 10

Muscles
⚫ The primary muscles involved in shoulder girdle movements all originate on —— & ——
⚫ Do not attach to —- & do not cause ——joint actions
⚫ Functions:
1.
2.

Answer 10

Muscles
⚫ The primary muscles involved in shoulder girdle movements
⚫ All originate on axial skeleton & insert on scapula and/or clavicle
⚫ Do not attach to humerus & do not cause shoulder joint actions
⚫ Functions:
⚫ Stability
⚫ ROM of shoulder joint

Question 11

Shoulder Girdle Muscles
⚫ 5 muscles primarily involved :
1.
2.
3.
4.
5.

Answer 11

Shoulder Girdle Muscles
⚫ 5 muscles primarily involved :
1. 2.
3. 4. 5.
Trapezius - upper, middle, lower Rhomboid – deep
Levator scapula Serratus anterior Pectoralis minor – deep
Subclavius

Question 12

List the Shoulder girdle movements

Answer 12

Elevation
Depression
Adduction
Abduction
Downward rotation
Upward rotation

Question 13

Shoulder Joint (glenohumeral)
- articulation of ——& ———
- designed for—- (greatest —- of any jt in body)
- shallow glenoid fossa (—- size of humeral head)
-shape of humeral head is

Answer 13

Shoulder Joint (glenohumeral)
- articulation of humerus & glenoid fossa
- designed for mobility (greatest ROM of any jt in
body)
- shallow glenoid fossa (1/4 size of humeral head)
-spherical humeral head

Question 14

List the supporting structures for shoulder

Answer 14

Anterior:
Capsule
labrium,
Glenn humeral ligaments 3 “reinforcements “ in th encapsulated coracohumeral ligament,
Fibers of the subscapularis and pectoral major that blend into the joint capsule

Posterior:
Capsule
Labrum
Fibers from teres minor and infraspinatus that blend into the capsule

Question 15

Subacromial arch (—— ligaments) provides a —— for the rotator cuff muscle tendons

Answer 15

Coracoacromial ligament
Buffer

Question 16

Bursae in Shoulder
⚫ sacs secreting —— fluid
⚫ distributed throughout shoulder complex to reduce friction between tissues
List the bursae in the shoulder joint ———.
⚫ cushions rotator cuff muscles (supraspinatus) from laying directly on —— process
⚫ overuse can lead to irritation of bursae

Answer 16

Bursae in Shoulder
⚫ sacs secreting synovial fluid
⚫ distributed throughout shoulder complex to
reduce friction between tissues
e.g. subacromial bursae
Infraspinatus bursa, subscapularis bursa.
⚫ cushions rotator cuff muscles (supraspinatus) from laying directly on acromion process
⚫ overuse can lead to irritation of bursae

Question 17

Muscular strength shoulder complex from strongest to weakest

Answer 17

Muscular Strength Shoulder Complex
adduction
extension
flexion
abduction
internal rotation
external rotation

ADE FAB IE