Muscle-UL attachments Flashcards
Trapezius actions
adducts scapula
elevates and depresses scapula
Trapezius A-B
A- SP T1-T12
B- scauplar spine
Lat dorsi A-B
A- SP T7-L5- iliac crest
B- intertubercular groove of humerus
Lat Dorsi action-
adduct arm
extension of arm (backwards)
arm medial rotation
Levator scapula A-B
A- TP C1-C4
B- superior medial scapular border
Levator scapula action
elevates scapula
rhomboid major and minor A-B
Major- SP T2-T5 –> medial border of scapula
Minor- SP C7-T1 –> medial border of scapula
rhomboid major/minor action
adduct scapula
Pec major A-B
A- clavicle head; sternum/costal cartilage
B- lateral lip of intertubercular groove of humerus
Pec major actions
Adducts arm
medial rotate arm
flex arm (clavicular head)
extend arm (sternal heaad)
Pec minor A-B
A- rib 3-5
B- coracoid process
Pec minor action
elevate ribs, depress scapula (stabilizer)
Serratus anterior A-B
A- upper 8 ribs
B- inside medial border of scapula
Serratus anterior action
holds scapula in
Deltoideus A-B
A- lateral clavicle (anterior head); acromion (middle head); scapula spine (posterior head)
B- Deltoid tuberosity
Deltoid action
medial rotation
lateral rotation
abduction of arm
flexion/extension of arm
Teres major A-B
A- inferolateral scapula
B- medial lip of bicipital groove
Teres minor A-B
A- lateral scapula
B- greater tubercle of humersu (wraps posteriorly)
Teres major action
meial rotation, adduct arm, extends arm
Teres minor action
adducts arm
lateral rotatioin
Supraspinatus infraspinatus A-B
A- infra and supraspinous fossa
B- greater tubercle of humerus
Supraspinatous
abducts first 90 degress of arm
Infraspinatus action
lateral rotation
adduction
subscapularis A-B
A- subscapular fossa
B- lesser tubercle
