Day 6 - Shoulder Girdle Flashcards
(36 cards)
Bones of the Shoulder Girdle
Scapula
Clavicle
Key Bony Landmarks in Shoulder Girdle
Manubrium
Clavicle
Coracoid Process
Acromion Process
Glenoid Fossa
Lateral Border
Inferior Angle
Medial Border
Superior Angle
Spine of the Scapula
Clavicle Bony Landmarks
Acromial (Lateral) End
Sternal (Medial) End
Clavicle Features
Act as a brace to hold shoulder girdle away from thorax
Curved Shape; Breaks Forward
3 Joints for the Shoulder Girdle
Sternoclavicular Joint
Acromioclavicular Joint
Scapulothoracic Joint
Sternoclavicular Joint Structure
Anterior sternoclavicular ligament
Posterior sternoclavicular ligament
Costoclavicular and interclavicular ligaments
Acromioclavicular Joint Structure
Coraclavicular ligaments
Acromioclavicular ligaments
Shoulder Girdle Movements: Abduction Protraction
movement away laterally
Shoulder Girdle Movements: Adduction (Retraction)
movement inward medially
Shoulder Girdle Movements: Depression
downward movement
Shoulder Girdle Movements: Elevation
shoulder shrug
Shoulder Girdle Movements: Downward Rotation
moving inferior angle inferomedially toward spinal column & glenoid fossa downward
Shoulder Girdle Movements: Upward Rotation
turning glenoid fossa upward & moving inferior angle superolaterally away from spinal column
Shoulder Girdle Movements: Lateral Tilt
during abduction, scapula rotates along vertical axis; posterior movement of medial border and anterior movement of lateral border
Shoulder Girdle Movements: Medial Tilt
during extreme adduction, scapula rotates along vertical axis; anterior movement of medial border and posterior movement of lateral border
Shoulder Girdle Movements: Anterior Tilt
rotational movement of scapula along lateral/frontal axis during hyperextension
Shoulder Girdle Movements: Posterior Tilt
rotational movement of scapula along lateral/frontal axis during hyperflexion
Shoulder Girdle: Musculature
- Trapezius
- Rhomboids
- Levator Scapula
- Serratus Anterior
- Pectoralis Minor
Trapezius: Upper Fiber Movements
elevation of scapula, extension and rotation of head
Trapezius: Middle Fiber Movements
elevation, upward rotation, and adduction
Trapezius: Lower Fiber Movements
depression, adduction, and upward rotation
Levator Scapulae Movements
elevation, weak downward rotation, and weak adduction
Rhomboids Movements
adduction, downward rotation, and elevation
Serratus Anterior Movements
abduction and upward rotation