Upper Limb 1 Flashcards
(12 cards)
What are the 2 shoulder joints and their respective bones?
Acromioclavicular joint (acromion of scapula, clavicle)
Glenohumeral joint (glenoid fossa of scapula, head of humerus)
The pectoral girdle is made up of…
Scapula
Clavicle
3 parts of the deltoid and their actions
Posterior (extend, laterally rotate arm)
Middle (abduct arm)
Anterior (flex, median rotate arm)
Trapezius 3 parts and actions
Ascending (depress scapula)
Middle (retract scapula)
Descending (elevate scapula)
Actions of latissumus dorsi
Extend, adduct, medically rotate humerus
Action of levator scapula
Elevate scapula
Action of rhomboid major and minor
Retract scapula
Action of teres major
Adduct, medially rotate arm
What are the rotator cuff muscles and what is their primary function
Supraspinatus
Infraspinatus
Subscapularis
Stabilize glenohumeral joint
Secondary action if supraspinatus
Assist deltoid in first 15 degrees of abduction
Secondary action of infraspinatus and teres minor
Laterally rotate arm
Secondary action of subscapularus
Medially rotate arm