10-31-11 Monday

Anatomy

Shoulder and Arm
-Topographical Views
16 mm attach on scapula
3 bones make up the shoulder complex: clavicle, scapula, humerus
acromion of scapula
clavicle has acrominal and sternal ends

Deltoid (antagonist to itself)
O: lateral 1/3 of clavicle, acromion, and spine of scapula
I: Deltoid tuberosity
A: All fibers (anterior, middle, and posterior)- abduct glenohumeral jt
Anterior fibers- flex glenohumeral jt
medially rotate glenohumeral jt
horizontally adduct glenohumeral jt
Posterior fibers- extend glenohumeral jt
laterally rotate glenohumeral jt
horizontally abduct glenohumeral jt

Trapezius
O: external occipital protuberance (EOP), medial portion of superior nuchal line of occiput, ligamentum nuchae, and SP of C7-T12
I: lateral 1/3 clavicle, acromion, and spine of scapula
A: upper fibers (descending)
-bilaterally- extend head and neck
-unilaterally- laterally flex head and neck to same side
rotate head and neck to opposite side (pushing)
elevate scapula (scapulothoracic jt)
upwardly rotate scapulothoracic jt
middle fibers- adduct scapulothoracic jt
stabilize scapulothoracic jt
Lower fibers (ascending)
-depress scapulothoracic jt
-upwardly rotate scapulothoracic jt

Latissimus Dorsi (broadest mm on back
O: inferior angle of scapula, SP of last six (t7-t12) thoracic vertebrae, last 3 or 4 ribs, thoracolumbar aponeurosis, and posterior iliac crest.
I: intertubercular groove of the humerus
A: extend glenohumeral jt
adduct glenohumeral jt
medially rotate g/h jt

Teres Major (complete synergist to Latissimus dorsi, Lat's little helper, hand cuff position)
O: inferior angle of lower 1/3 of lateral boarder of scapula
I: crest of lesser tubercle of humerus
A: extend glenohumeral
adduct g/h
medially rotate g/h




Body Awareness H.W.- read chapter 9, write about 3pts from the chapter, bring workout close, and extra credit for journaling on breathing