Scapular Region

Question 1

What muscle attaches to the strenal end of the clavicle?

Answer 1

Pectoralis major

Question 2

What muscles attach to the lateral end of the clavicle?

Answer 2

Trapezius

Deltoid

Question 3

What is the only bone connecting the shoulder with the axial skeleton

Answer 3

Clavicle

Question 4

What joint is the center of movement for the shoulder?

Answer 4

Sternoclavicular joint

Question 5

Components of the sternoclavicular joint?

Answer 5

Articular disc

Interclavicular ligament

Anterior sternoclavicular ligament

Costoclavicular ligament

Question 6

Shoulder separation

Answer 6

Acromioclavicular joint

Question 7

When you have a fracture in the midshaft of the humerus, what nerve are you concerned about?

Answer 7

Radial nerve

Question 8

When you have a fracture in the surgical neck of the humerus, what nerve are you concerned about?

Answer 8

Axillary nerve

Question 9

A bursa is lined by

Answer 9

Synovial membrane

Question 10

5 principle joints of the shoulder region

Answer 10

Subacromial joint

Acromioclavicular joint

Glenohumoral joint

Sternoclavicular joint

Scapulothoracic joint

Question 11

Scapulothoracic joint lies between

Answer 11

Subscapularis and rib cage

Question 12

Movements of the scapula include

Answer 12

Elevation and depression

Abduction and adduction

Lateral rotation of the inferior angle

Question 13

Movements in the sternoclavicular joint

Answer 13

Elevation and depression of the shoulder

Protraction and retraction of the shoulder

Question 14

The motion of the scapula is dependent on the motion of the

Answer 14

Clavicle

Question 15

For every __ degrees of humeral motion, there is __ degree of ___ rotation

Answer 15

2 degrees of humeral motion

1 degree of scapular rotation

Question 16

Movements of the shoulder joint

Answer 16

Flexion and extension

Abduction and adduction

Internal and external rotation

Question 17

What happens when your shoulder dislocates?

Answer 17

The head of the humerus goes below the coracoid

Question 18

Primary abductor of deltoid

Answer 18

Middle part

Question 19

Function of anterior part of deltoid

Answer 19

Flexes and medially rotates arm

Question 20

Function of posterior part of deltoid

Answer 20

Extends and laterally rotates arm

Question 21

Rotator Cuff Muscles

Answer 21

Supraspinatus

Infraspinatus

Teres minor

Subscapularis

Question 22

Functions of rotator cuff muscles

Answer 22

Primary function: holds glenohumeral joint tightly in place with continual traction

Question 23

Which rotator cuff muscles insert on the greater tubercle?

Answer 23

Supraspinatus

Infraspinatus

Teres minor

Question 24

Triangular space (boundaries)

Answer 24

Teres major

Teres minor

Long head of triceps

Question 25

What goes through the triangular space?

Answer 25

Circumflex scapular artery

Question 26

Quadrangular space (boundaries)

Answer 26

Teres major Teres minor Shaft of humerus Long head of triceps

Question 27

What goes through the triangular space?

Answer 27

Axillary nerve Posterior circumflex humeral artery

Question 28

Triangular interval (boundaries)

Answer 28

Teres minor Shaft of humerus Long head of triceps

Question 29

What goes through the triangular interval?

Answer 29

Deep brachial artery Radial nerve

Question 30

Locations of suprascapular artery and nerve in rotator cuff

Answer 30

Suprascapular artery is superior (over) the transverse scapular ligament Suprascapular nerve goes under the transverse scapular ligament

Question 31

Route of suprascapular artery and nerve

Answer 31

Artery crosses superior to transverse scapular ligament. Nerve goes under it. They first supply the supraspinatus muscle Artery and nerve cross lateral to the spine of the scapula They then supply the infraspinatus The artery goes on to supply the teres minor and anastamoses inferior to the scapula

Question 32

Supraspinatus is involved as a syngerist to the ___ in ___ at shoulder

Answer 32

Synergist to deltoid in abduction at shoulder

Question 33

Initial phase of abducitng arm (0-60 degrees)

Answer 33

Supraspinatus and deltoid muscles

Question 34

Second phase of abducting arm (60-120 degrees)

Answer 34

Supraspinatus and deltoid maintain contraction Upper trapezius and lower serratus anterior rotate shoulder point upward

Question 35

Final phase of abducting arm (120-180 degrees)

Answer 35

Spinal cord curves to the opposite side to allow the arm to be raised completely overhead

Question 36

Damage to supraspinatus tendon

Answer 36

Rotator cuff tear

Question 37

Tendons of the rotator cuff muscles

Answer 37

Supraspinatus tendon Infraspinatus tendon Teres minor tendon Tendon of long head of biceps Subscapularis tendon

Question 38

Ligaments that stabilize the gelnohumeral joint + strongest

Answer 38

Superior glenohumeral ligament Middle glenohumeral ligament Inferior glenohumeral ligament Inferior = strongest

Question 39

Functions of gelnohumeral ligaments

Answer 39

Resist abduction and lateral (external) rotation

Question 40

Innervation of A/C joint

Answer 40

Suprascapular joint innervatoin Some contribution from lateral pectoral nerve

Question 41

What two mechanisms hold the head of the humerus into the glenoid fossa

Answer 41

Passive Process Active process

Question 42

Passive process

Answer 42

Ligaments physically hold in the shoulder joint

Question 43

Active processes

Answer 43

Rotator cuff muscles are all active in holding head of humerus on the joint

Question 44

Glenoid labrum is weakest in

Answer 44

Anterior superior area

Question 45

Glenoid labrum is strongest

Answer 45

Inferior anterior area

Question 46

Scapular anastamosis arteries

Answer 46

Transverse cervical Dorsal scapular Suprascapular Circumflex scapular Circumflex humeral

Question 47

Shoulder dislocation

Answer 47

Glenohumeral joint