Shoulder and Superficial Back

Question 1

What are the 3 angles of the scapula?

Answer 1

A. Superior Angle
B. Inferior Angle
C. Lateral Angle

Question 2

What are the distal attachments of the Trapezius?

Answer 2

• Spine of scapula
• Acromion
• Lateral 1/3 of clavicle

Question 3

What are the medial attachments of the Trapezius

Answer 3

-Vertebrae

Question 4

What nerve innervates the Trapezius?

Answer 4

Spinal accessory nerve (XI)

Question 5

What is the artery that supplies blood to the Trapezius?

Answer 5

The Superficial branch of the transverse cervical artery

Question 6

What are the attachments of the Deltoid?

Answer 6

• Spine of scapula
• Acromion
• Lateral 1/3 of clavicle

Question 7

What muscle initiates abduction of the humerus for the first 10-15 degrees?

Answer 7

Supraspinatus

Question 8

Which muscles rotate the scapula during abduction of the humerus?

Answer 8

• Trapezius

- Serratus Anterior

Question 9

What clinical finding suggest loss of function of the serratus anterior?

Answer 9

• Winged Scapula

- obvious distinction of the medial border and inferior angle of the scapula when pt is in push-up position

Question 10

What are the attachments of the Teres major?

Answer 10

lateral border of scapula to medial lip of bicipital groove

Question 11

What are the attachments of the latissimus dorsi?

Answer 11

From dorsum of back to floor of bicipital groove

Question 12

What are the muscles of the rotator cuff?

Answer 12

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

Question 13

Which nerve innervates the Latissimus Dorsi? And where does it originate?

Answer 13

• Thoracodorsal Nerve

- C6, 7, 8

Question 14

Which nerve(s) innervate the levator scapulae, and where do they originate?

Answer 14

• Dorsal scapular (C4-5)

- Cervical nerves (C3-4)

Question 15

Which nerve innervates the Rhomboid major and minor? and where does it originate?

Answer 15

Dorsal scapular nerve (C4-5)

Question 16

Which nerve innervates the deltoid?

Answer 16

Axillary (C5-6)

Question 17

Which nerve innervates the Supraspinatus?

Answer 17

Suprascapular nerve (C4-6)

Question 18

Which nerve innervates the Infraspinatus?

Answer 18

Suprascapular nerve (C5-6)

Question 19

Which nerve innervates the Teres Minor?

Answer 19

Axillary Nerve (C5-6)

Question 20

Which nerve innervates the Teres Major?

Answer 20

Lower subscapular nerve (C5-6)

Question 21

Which nerve innervates the subscapularis?

Answer 21

The upper and lower subscapular nerves (C5-7)

Question 22

What muscle(s) does the Axillary nerve innervate?

Answer 22

Deltoid and teres minor

Question 23

What muscle(s) does the suprascapular nerve innervate?

Answer 23

supraspinatus and infraspinatus

Question 24

Where is the site of attachment of the long head of the triceps?

Answer 24

Infraglenoid tubercle

Question 25

Where is the site of attachment of the long head of biceps brachii?

Answer 25

supraglenoid tubercle

Question 26

What are the proximal and distal sites of attachment of the Supraspinatus?

Answer 26

Proximal: Supraspinous fossa

Distal: Superior facet of greater tubercle of humerus

Question 27

What are the proximal and distal sites of attachment of the Infraspinatus?

Answer 27

Proximal: Infraspinous fossa

Distal: Middle facet of greater tubercle of humerus

Question 28

What are the proximal and distal sites of attachment of the Teres Minor?

Answer 28

Proximal: Middle part of lateral border of scapula

Distal: Inferior facet of greater tubercle of humerus

Question 29

What are the proximal and distal sites of attachment of the Teres Major?

Answer 29

Proximal: Posterior surface of inferior angle of scapula

Distal: Medial crest of intertubercular groove of humerus

Question 30

What are the proximal and distal sites of attachment of the Subscapularis?

Answer 30

Proximal: Subscapular fossa

Distal: Lesser Tubercle of humerus