MMB[001] The Shoulder

Question 1

Mention the Shoulder girdle joints

Answer 1

Sternoclavicular & Acromioclavicular

Question 2

What’s the lesion ?

Answer 2

Surgical neck fracture

Question 3

Mention two functions of clavicle

Answer 3

• Assists shoulder movement

-Transmits force from upper limb to thorax

Question 4

Mention type of Sternoclavicular joint

Answer 4

Synovial saddle.

Question 5

Describe the Sternoclavicular joint

Answer 5

Articulation between manubrium of sternum, clavicle & 1st costal cartilage.

Question 6

…(ligament) is the main stabilizing factor of the shoulder girdle

Answer 6

The Costo-clavicular ligament

Question 7

Answer 7

Question 8

Type of Acromioclavicular joint ?

Answer 8

Synovial plane.

Question 9

Describe the Acromioclavicular joint

Answer 9

Articulation between acromion of scapula & clavicle.

Question 10

Answer 10

Question 11

Role of back muscles in relation to upper limb ?

Answer 11

attach upper limb to vertebral column

Question 12

Mention the muscles

Answer 12

Question 13

Mention the first layer of back muscles

Answer 13

1. Trapezius.
2. Latissimus dorsi.

Question 14

Mention the second layer of back muscles

Answer 14

1. Levator scapulae.
2. Rhomboidus minor.
3. Rhomboidus major.

Question 15

Describe the action of each the upper , and lower fibers of the trapezius

Answer 15

Upper fibers: elevate the scapula.

Lower fibers: depress the scapula

Question 16

Describe the action of middle part of trapezius.

Answer 16

retract the scapula.

Question 17

What happens when the trapezius is paralized

Answer 17

a drop shoulder with rotation of the angle of the scapula towards the midline,,

and restricted abduction of the arm

Question 18

Mention the muscle responsible for scratching the back

Answer 18

latissimus dors

Question 19

Describe the movement of the latissimus dorsi in this figure

Answer 19

• Adduction

• Extension

• Medial rotation

Question 20

Muscle responsible for this movement ?

Answer 20

latissimus dorsi : Climbing or elevation of the trunk.

Question 21

mention the muscles

Answer 21

1. Levator scapulae.
2. Rhomboidus minor.
3. Rhomboidus major.

Question 22

mention the muscles

Answer 22

1. Pectoralis Major muscle

Deep to pectoralis major are:

2. Pectoralis Minor
3. Subclavius muscle
4. Clavipectoral fascia (between 2 & 3)

Question 23

… and …. (Muscles) draws trunk upward as in climbing & swimming.

Answer 23

pectoralis major
and
latissimus dorsi

Question 24

The Serratus Anterior arises from the … & inserted into …

Answer 24

Upper 8 ribs ,, scapula

Question 25

The Serratus Anterior is supplied by the….(nerve). And it’s root value is…

Answer 25

-Long thoracic nerve
- roots C5.C6 C7

Question 26

…. (Intervention) Is a common cause of long thoracic nerve injury.

Answer 26

operation for carcinoma of the breast

Question 27

…. Is a condition caused by the impairment of the Long-Thoracic nerve.

Answer 27

Winged Scapula.

Question 28

Identify the condition , mention the muscle and nerve affected.

Answer 28

Winged Scapula :
- caused by serratus anterior ;
- due to Long-Thoracic nerve injury

Question 29

Answer 29

Question 30

… is a muscle seen from front of scapula

Answer 30

Subscapularis

Question 31

Mention the muscle

Answer 31

Teres Minor

Question 32

The muscle ?

Answer 32

Teres Major