Shoulder Part 1: Exam 3

Question 1

Movement and stablization of the shoulder requires integrated function of what?

Answer 1

• rotator cuff muscles
• joint capsule
• scapula stabilizing muscles

Question 2

Bones of the shoulder complex

Answer 2

• clavicle
• scapula
• humerus

Question 3

Joints of the shoulder complex

Answer 3

• sternoclavicular
• acromioclavicular
• glenohumeral
• scapulothoracic

Question 4

Ligaments of the shoulder complex

Answer 4

• sternoclavicular
• acromioclavicular
• coracoclavicular
• glenohumeral

Question 5

SC joint

Answer 5

Sternoclavicular

Question 6

SC joint articulation

Answer 6

Clavical articulates with manubrium of the sternum

Question 7

What is between the articulating surfaces?

Answer 7

Fibrocartilaginous disk

Question 8

Fibrocartilaginous disk

Answer 8

• shock absorber and helps prevent displacement

- clavicle permitted to move up and down, forward and backwards and in rotation

Question 9

AC joint

Answer 9

Acromioclavicular joint

Question 10

AC join location

Answer 10

Lateral end of the clavicle

-acromion process of scapula meets lateral end of clavicle

Question 11

AC joint injuries

Answer 11

Weak joint and susceptible to sprain and separation

Question 12

GH joint

Answer 12

Glenohumeral

Question 13

What type of joint is the GH joint?

Answer 13

Ball and socket joint

Question 14

GH joint location

Answer 14

Round head of humerus articulates with shallow glenoid fossa of scapula

Question 15

What helps to widen and deepen the articulation of humerus and scapula?

Answer 15

Glenoid labrum

Question 16

What statically stabilizes the GH joint?

Answer 16

Labrum and capsular ligaments

Question 17

What dynamically stabilizes the GH joint?

Answer 17

Deltoid and rotator cuff muscles

Question 18

ST joint

Answer 18

Scapulothoracic joint

Question 19

What is not a real joint?

Answer 19

ST joint

Question 20

What is critical to joint motion?

Answer 20

Movement of scapula on thoracic cage

Question 21

Scapulohumeral rhythm

Answer 21

During humeral elevation scapula and humerus must move in synchronous fashion

Question 22

Shoulder muscles (5)

Answer 22

• rotator cuff
• deltoids
• pectoralis major
• biceps
• triceps

Question 23

Rotator cuff function

Answer 23

Provides most of the dynamic stability of the GH joint

Question 24

4 muscles of the rotator cuff

Answer 24

• supraspinatus
• infraspinatus
• teres minor
• subscapularis

Question 25

Pectoralis major location

Answer 25

Originates on the sternum and clavicle and inserts on biceps

Question 26

Pectoralis major functions

Answer 26

Shoulder flexion/ extension, adduction, internal rotation

Question 27

Biceps location

Answer 27

Anterior surface of upper arm

Question 28

Function of bicep

Answer 28

Elbow flexion and assists in shoulder flexion

Question 29

Triceps location

Answer 29

Posterior surface of upper arm

Question 30

Function of triceps

Answer 30

Elbow extension and assists in shoulder extension

Question 31

What causes many specific shoulder injuries

Answer 31

Instability

Question 32

What provides static stability?

Answer 32

Bony/labral and ligamentous anatomy

Question 33

What provides dynamic stability?

Answer 33

Muscles

Question 34

Important to observation of shoulder complex

Answer 34

- elevation or depression of shoulder tips - position and shape of clavicle - scapulohumeral rhythm

Question 35

Important bony palpation of shoulder complex

Answer 35

- SC joint - clavicle - AC joint - humeral head - spine of scapula

Question 36

Special tests for active and passive ROM

Answer 36

- flexion - extension - abduction - adduction - internal rotation - external rotation

Question 37

Muscles to test

Answer 37

Muscles of the shoulder and those that serve as scapula stabilizers

Question 38

Joints to test for stability

Answer 38

- SC - AC - GH