muscles of the pectoral region

what muscles make up the pectoral region

pectoralis major

pectoralis minor

serratus anterior

origin of pectoralis major

clavicle, sternum, and coastal cartilages of ribs 2-6

insertion of pectoralis major

greater tuberosity and bicipital groove

action of the pectoralis major

shoulder adduction and internal rotation and assists with flexion

innervation of pectoralis major

medial and lateral pectoral nerves

origin of pectoralis minor

ribs 3-5

insertion of pectoralis minor

coracoid process

action of pectoralis minor

scapular protraction and downward rotation

innervation of pectoralis minor

medial pectoral nerve

origin of serratus anterior

superior 9 ribs

insertion of serratus anterior

anterior (costal) surface of the medial border of the scapula

action of serratus anterior

protraction and upward rotation of the scapula

innervation of serratus anterior

long thoracic nerve