Shoulder Girdle Flashcards Preview

Anatomic Kinesiology > Shoulder Girdle > Flashcards

Flashcards in Shoulder Girdle Deck (11):
1

Shoulder Girdle

Entire upper extremity (UE) depends on shoulder girdle. It's only attachment of UE to axial skeleton is via the scapula through the clavicle at the SC joint.

2

Bones included

Scapula & Clavicle

3

Sternoclavicular joint

Arthrodial (multiaxial) Provides the same amount of movement posteriorly & anteriorly. Provides more movement superiorly than inferiorly.

4

Sternoclavicular supporting ligaments

Anterior SC ligament, Posterior SC ligament, Costoclavicular & Interclavicular ligaments

5

Acromioclavicular

Arthrodial classification, 20- to 30-degree total gliding & rotational motion. Accompanies other shoulder girdle & joint motions

6

Acromioclavicular supporting ligaments

Coracoclavicular ligaments: Conoid (medial) & trapezoid (lateral), Superior acromioclavicular ligament, Inferior acromioclavicular ligament

7

Scapulothoracic

Movement depends on SC & AC joints which allow
the scapula to move - no ligamentous support; supporting via muscles

8

Shoulder girdle movements

Abduction, Adduction, Downward rotation, Upward rotation, depression, elevation

9

Shoulder girdle functions

Stabilize scapula, contract to move girdle & enhance movement of upper extremity,

10

Movements of Scapula

Lateral tilt (abduction), medial tilt (adduction), anterior tilt (upward), posterior tilt (doward)

11

Shoulder girdle muscles

Trapezius, rhomboid, levator scapula, serratus anterior, pectoralis minor. Do not attach to humerus & do not cause shoulder joint actions.