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clavicle
collar bone
scapula
shoulder blade
axilla
arm pit region
pectus
chest
scapular spine
divides fossae of scapula, broadens laterally to form acromion process
supraspinous fossa
“scooped out” region above scapular spine
infraspinous fossa
“scooped out” region below scapular spine
subscapular fossa
concave anterior surface of scapula that hugs the ribs
glenoid fossa
lateral and slightly anterior fossa that serves as the socket for the shoulder joint
coracoid process
finger-like structure that arises from the head of the scapula projects antolaterally
protraction
rolling forwards
retraction
pulling backwards
elevation
lifting (shrugging)
depression
lowering down
rotation
medial and lateral rotation of the scapula around the ribs
trapezius (origin)
base of skull to spinous process of cervical and thoracic vertebrae
trapezius (insertion)
outer clavicle, acromion and spine of scapula
trapezius (action)
elevation, retraction and depression
levator scapulae (origin)
upper cervical spine
levator scapulae (insertion)
superior angle and medial border of scapula
levator scapulae (action)
elevation
rhomboids (major and minor) (origin)
spinous process from C7 - T5
rhomboids (major and minor) (insertion)
medial border of scapula
rhomboids (major and minor) (action)
elevation, retraction, medial rotation
pectoralis minor (origin)
ribs 3-5
pectoralis minor (insertion)
coracoid process
pectoralis minor (action)
protraction
serratus anterior (origin)
lateral 1st → 9th rib (knife-like projections / serrations)
serratus anterior (insertion)
medial edge of the subscapular fossa
serratus anterioir (action)
protection and lateral rotation
sternoclavicular joint type
technically saddle, but considered only as plane / gliding synovial
sternoclavicular joint location
articulates the clavicle with the sternum
acromioclavicular joint type
gliding joint
acromioclavicular joint location
connects clavicle to acromion (spine of scapula)
acromioclavicular joint ligaments
bound by capsule and ligaments - acromion → coracoid process (coraco-acromial ligament), coracoid process → clavicle (coracoclavicular ligament)
