Chapter 4- Shoulder Girdle

Question 1

The shoulder girdle is also know as

Answer 1

Scapulothoracic

Question 2

Sternoclavicular (SC)

Answer 2

Multiaxial

Movements:

Protraction(anteriorly)
Retraction(posteriorly)
Elevation(superiorly)
Depression(inferiorly)

Question 3

Sternoclavicular ligament support

Answer 3

Anterior sc ligament
Posterior sc ligament
Costoclavicular & interclavicular ligaments provide stability against superior displacement

Question 4

Acromioclavicular (AC)

Often injured

Answer 4

Multiaxial

Total gliding & rotational motion

Question 5

AC ligament support

Answer 5

Coracoclavicular ligament
Superior AC ligament
Inferior AC ligament

Question 6

Scapulothoracic

Answer 6

Depends on sc & AC joint

Question 7

5 muscles primarily involved in shoulder girdle movements

Answer 7

1) trapezius- upper, middle lower
2) rhomboid
3) levator scapula
4) serratus anterior
5) pectoralis minor

Question 8

Muscles contributing to elevation

Answer 8

Rhomboids
Trapezius(upper& middle)
Levator scapulae

Question 9

Muscles contributing to depression

Answer 9

Trapezius(lower)

Pectoralis minor

Question 10

Muscles contributing to protraction

Answer 10

Serratus anterior

Pectoralis minor

Question 11

Muscles contributing to retraction

Answer 11

Rhomboids

Trapezius(middle &lower)

Question 12

Muscles contributing to upward rotation

Answer 12

Trapezius (middle &lower)

Serratus anterior

Question 13

Muscles contributing to downward rotation

Answer 13

Rhomboids

Pectoralis minor

Question 14

Clavicle & scapula

Answer 14

Move as unit