Review

Bones

Muscles

Muscle Details
Muscle Origin Insertion Nerve supply Action
pectoralis major medial half of clavicle
sternum
costal cartilages
aponeurosis of external oblique		 lateral lip of intertubercular sulcus medial and lateral
pectoral nerves		 flexes, adducts,
and rotates arm medially
pectoralis minor anterior surface of
2nd thru 5th ribs		 coracoid process of
scapula		 protracts scapula
pulls it forward
onto the thorax
elevates ribs
when scapula
is held steady		 medial pectoral nerve
subclavius costal cartilage
of first rib		 lower surface of clavicle nerve to subsclavius depresses lateral end of clavicle
pulls clavicular head into
sternoclavicular joint
serratus anterior lateral surface of
1st to 8th or 9th ribs		 vertebral (medial)
border of scapula		 long thoracic protract scapula
pulls it forward
rotates scapula laterally
teres minor axillary (lateral)
border of scapula		 inferior aspect
greater tubercle
of humerus		 axillary rotates arm laterally
teres major posterior aspect
inferior angle of scapula		 crest of lesser tubercle
of humerus		 lower subscapular adducts and
rotates arm medially
latissimus dorsi spinous processes
lower 6 vertebra
thoracolumbar fascia
iliac crest		 floor of intertubercular
fossa		 thoracodorsal adducts, extends
medially rotates humerus

Arteries and Veins

    Axillary artery
    1. supreme thoracic
    2. thoracoacromial
    3. lateral thoracic
    4. subscapular
    5. thoracodorsal
      1. scapular circumflex
    6. anterior humeral circumflex
    7. posterior humeral circumflex

    Axillary vein

    Lymph Nodes

    1. pectoral (anterior)
    2. lateral
    3. posterior
    4. central
    5. apical

    Axillary Lymph Nodes Bones of Arm & Forearm

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