Assumed Knowledge Upper Limb Actions Flashcards
What are the actions of Latissimus Dorsi?
Shoulder internal rotation
Shoulder extension
Shoulder adduction
What are the axioscapular muscles ?
There are 6 axioscapular muscles.
- Upper, middle, lower trap
- Rhomboid major and minor
- Serrated anterior
- Pec minor
- Levator scapulae
- Subclavius
What are the scapulohumeral muscles?
There are 8 scalulohumeral muscles
- Pec major (clavicular head)
- Anterior, middle and posterior deltoid
- Supraspinatus
- Infraspinatus
- Subscapularis
- Trees minor
- Trees major (lats little helper)
- Coraclbrachilais
What are the axiohumeral muscles?
There are two axiohumeral muscles
- Latissmus dorsi
- Pec major (sternal head)
What are the actions of pec major sternal head?
Shoulder adduction
What are the three lateral rotators of the scapula?
Serratus anterior, upper trap, lower trap
What are the medial rotators of the scapula?
Rhomboid major
Rhomboid minor
Levator scapulae
Pec minor
What are the adductors of the shoulder?
Latissimus dorsi
Teres major
Pec major sternal head
Pec minor (minor adductor)
What are the abductor/s of the shoulder ?
Middle deltoid
What are the actions of pec major clavicular head
Shoulder flexion
What are the actions of deltoid
Anterior - shoulder flexion and internal rotation
Middle - shoulder abduction
Posterior - shoulder extension and external rotation
What are the actions of the posterior cuff?
Supraspinatus - external rot, assists in shoulder abduction, medial pull of humerus into glenoid fossa
Infraspinatus - shoulder external rot, shoulder extension, medial pull of humerus into glenoid fossa
Teres minor - shoulder external rot, medial pull of humerus into glenoid fossa
Actions of Supraspinatus
Supraspinatus - external rot, assists in shoulder abduction, medial pull of humerus into glenoid fossa
Actions of infraspinatus
Infraspinatus - shoulder external rot, shoulder extension, medial pull of humerus into glenoid fossa
Actions of teres minor
Teres minor - shoulder external rot, medial pull of humerus into glenoid fossa
Actions of anterior rotator cuff
Subscap : shoulder internal rot, medial pull of humerus into glenoid fossa
Actions of Coracobrachialis
Shoulder flexion
Shoulder adduction
Actions of Teres major
Lats little helper
Shoulder internal rotation
Shoulder extension
Shoulder adduction
Actions of trapezius
Upper trap - scapula elevation and lateral rotation
Middle trap - scapula retraction and internal rotation
Lower trap - scapula depression and lateral rotation
Actions for rhomboid
Rhomboid major and minor - scapula retraction and medial rotation of scapula
Actions of Serratus anterior
Protraction
Scapula lateral rotation
Pec minor
Scapular depression
Shoulder adduction
Scapula medial rotation during shoulder adduction!
Actions of Levator scapulae
Scapular elevation
Scapular medial rotation
Actions of subclavius
Elevation of first rib
Depression of sternal end of clavicle
