Shoulder Region - Nbde I

Front 1

What are the parts of the anterior scapula? (3)

Back 1

1. Subscapular fossa
2. Scapular notch
3. Coracoid process

Front 2

What are the parts of the posterior scapula? (4)

Back 2

1. Supraspinatus fossa
2. Spine
3. Infraspinatus fossa
4. Acromion

Front 3

What is the ONLY bony link between the axial & appendicular skeleton of the upper limb?

Back 3

Clavicle

Front 4

Clavicle attaches to? (2)

Back 4

1. Sternum
2.Acromion

Front 5

Articulations of the clavicle?

Back 5

1. Sternoclavicular joint
2. Acromioclavicular joint

Front 6

Articular disk present in which joint of shoulder region?

Back 6

Sternoclavicular joint

Front 7

Shoulder separation typically occurs at which clavicular joint?

Back 7

Acromioclavicular joint

Front 8

Which clavicular joint allows movement of clavicle in all directions?

Back 8

Sternoclavicular joint

Front 9

What features are found at the proximal end of the humerus from an anterior view?

Back 9

1. Greater tubercle
2. Intertubercular groove
3. Lesser tubercle

Front 10

The radial groove is found where?

Back 10

Along the posterior view of the humerus

Front 11

What articulation is found in the shoulder?

Back 11

Glenohumeral joint

Front 12

Glenohumeral joint is?

Back 12

Articulation between head of humerus & glenoid fossa of scapula

Front 13

What are the extrinsic muscles of the shoulder?

Back 13

1. Trapezius
2. Latissimus dorsi
3. Levator scapulae
4. Rhomboid major & minor
5. Serratus anterior

Front 14

What is the innervation of trapezius?

Back 14

CN Xi
(C3, C4)

Front 15

Action of trapezius?

Back 15

1. Elevates scapula
2. Retracts scapula
3. Rotates scapula

Front 16

What is the innervation of LATISSIMUS DORSI?

Back 16

Thoracodorsal (C6,7,8)

Front 17

What is the action of LATISSIMUS DORSI? (4)

Back 17

1. Extends
2. Adducts
3. Medially rotates humerus
4. Raises body towards arms

Front 18

What is the innervation of LEVATOR SCAPULAE?

Back 18

Dorsal scapular (C5)

Front 19

What are the actions of LEVATOR SCAPULAE? (2)

Back 19

1. Elevate scapula
2. Rotate glenoid cavity downward

Front 20

What is the innervation of the RHOMBOIDS?

Back 20

Dorsal scapular

Front 21

Which 2 extrinsic shoulder muscles are innervated by the dorsal scapular nerve?

Back 21

1. Levator scapulae
2. Rhomboids

Front 22

What are the actions of the RHOMBOIDS? (3)

Back 22

1. Retract scapula
2. Depress glenoid cavity
3. Hold scapula against thoracic wall

Front 23

What are the actions of the SERRATUS ANTERIOR?

Back 23

1. Protract scapula
2. Rotate scapula
3. Hold scapula against thoracic wall

Front 24

What is the innervation of the SERRATUS ANTERIOR?

Back 24

Long thoracic

Front 25

What are the intrinsic muscles of the shoulder?

Back 25

1. Deltoid
2. Teres major
3. Teres minor
4. Infraspinatus
5. Supraspinatus
6. Subscapularis

Front 26

What is the innervation of the DELTOID?

Back 26

Axillary nerve

Front 27

What are the actions of the DELTOID? (3 parts)

Back 27

1. Anterior part: Flex & medially rotates arm
2. Middle part: Abducts arm
3. Posterior part: Extends & laterally rotates arm

Front 28

What is the innervation of the TERES MAJOR?

Back 28

Lower subscapular

Front 29

What are the actions of the TERES MAJOR? (2)

Back 29

1. Adduct arm
2. Medially rotate arm

Front 30

What is the innervation of the TERES MINOR?

Back 30

Axillary nerve

Front 31

What are the actions of the TERES MINOR?

Back 31

1. Laterally rotate arm
2. Holds head of humerus in glenoid fossa

Front 32

Which 2 shoulder muscles are innervated by the axillary nerve?

Back 32

1. Deltoid
2. Teres Minor

Front 33

What is the innervation of the SUPRASPINATUS?

Back 33

Supascapular

Front 34

What are the actions of the SUPRASPINATUS?

Back 34

1. Aids in abduction of arm
2. Holds head of humerus in glenoid fossa

Front 35

What is the innervation of the INFRASPINATUS?

Back 35

Suprascapular

Front 36

What are the actions of the INFRASPINATUS?

Back 36

1. Laterally rotates arm
2. Holds head of humerus in glenoid fossa

Front 37

Which muscles function to hold head of humerus in glenoid fossa (Rotator cuff muscles)?

Back 37

1. Teres minor
2. Infraspinatus
3. Supraspinatus
4. Subscapularis

Front 38

Which muscles are innervated by the suprascapular nerve?

Back 38

1. Infraspinatus
2. Supraspinatus

Front 39

What is the innervation of the SUBSCAPULARIS?

Back 39

Upper & lower subscapular nerves

Front 40

What are the actions of the SUBSCAPULARIS?

Back 40

1. Medial rotation of arm
2. Adduction
3. Hold head of humerus in glenoid fossa

Front 41

Which 2 muscles function to hold scapula against thoracic wall?

Back 41

1. Rhomboid major & minor
2. Serratus anterior

Front 42

What arteries branch from SUBCLAVIAN artery?

Back 42

Subclavian --> Thyrocervical trunk:
1. Transverse cervical artery
2. Suprascapular artery

Front 43

The subclavian artery becomes the axillary artery at what point?

Back 43

1st rib

Front 44

What arteries branch of the 1st part of the axillary artery? (1)

Back 44

1. Highest (superior) thoracic

Front 45

What structure identifies the boundaries of the 2nd part of the axillary artery?

Back 45

Pectoralis minor = 2nd part of axillary artery

Front 46

What arteries branch off the 2nd part of the axillary artery? (2)

Back 46

1. Thoracoacromial artery
2. Lateral thoracic artery

Front 47

What are the boundaries of the 3rd part of the axillary artery?

Back 47

Pectoralis minor --> Teres major

Front 48

What arteries branch from the 3rd part of the axillary artery? (3)

Back 48

1. Subscapular artery
-Circumflex scapular artery
-Thoracodorsal artery
2. Anterior circumflex humoral artery
3. Posterior circumflex humoral artery

Front 49

Once the axillary artery passes the teres major it becomes?

Back 49

Brachial artery

Front 50

Which 2 arteries branch off the subscapular artery?

Back 50

1. Circumflex scapular artery
2. Thoracodorsal artery

Front 51

Which arteries branch from the brachial artery? (2)

Back 51

1. Ascending branch
2. Deep brachial artery

Front 52

What are the spaces of the posterior shoulder region?

Back 52

1. Quadrangular space
2. Triangular space
3. Triangular interval

Front 53

Lateral boundary of quadrangular space?

Back 53

Lateral head of triceps brachii

Front 54

What is the superior boundary of the quandrangular space?

Back 54

Teres minor

Front 55

What is the medial boundary of the quandrangular space?

Back 55

Long head of triceps brachii

Front 56

What is the inferior boundary of the quadrangular space?

Back 56

Teres major

Front 57

What are the contents of the quadrangular space? (2)

Back 57

1. Axillary nerve
2. Posterior circumflex humeral artery

Front 58

What is the lateral boundary of the triangular space?

Back 58

Long head of triceps brachii

Front 59

What is the superior border of the triangular space?

Back 59

Teres minor

Front 60

What is the inferior border of the triangular space?

Back 60

Teres major

Front 61

What are the contents of the triangular space? (1)

Back 61

1. Circumflex scapular artery

Front 62

What is the superior boundary of the triangular interval?

Back 62

Teres major

Front 63

What is the medial boundary of the triangular interval?

Back 63

Long head of triceps brachii

Front 64

What is the lateral boundary of the triangular interval?

Back 64

Lateral head of triceps brachii

Front 65

What are the contents of the triangular interval? (2)

Back 65

1. Radial nerve
2. Deep branchial artery