shoulder girdle Flashcards
structures in shoulder girdle
clavicle
scpular
sternum
how many joints on shoulder clavicle
2
what type of joint is at shoulder girdle
gliding
what part of sternum
manubrium of sternum
acromioclavicular joint
acromion process of scapular and outer end of clavicle
gliding
allows greater freedom of movement of girdle and shoulder
sternoclavicular joint
saddle joint
movement of clavicle relative to sternum
only boney connection between upper appendicular skeleton and axial
anatomy of scapular
superior angle
spine
inferior angle
glenoid fossa
acromion process
coracoid process
movements at girdle
elevation (hunching)
depression
ab and adduction
upward rotation
muscles that originate at scapular
supraspinatus
infraspinatus
teres minor
biceps brachii long and shirt head
middle deltoid
triceps brachia long head
muscles that insert and move scapular
middle and lower trapezius (medial line pull = adduction )
levator scapulae
rhomboid
serrates anterior (abduction)
5 main muscles
posterior = trapezius, rhomboid, levator scapulae
anterior = pectoralis minor, serratus anterior
nuchal ligament
starts - occipital pertuberance
ends - spinous process C7
supports head weight
point of attachment
rhomboids and elevator scapulae movements
elevation
adduction
downward rotation
rhomboids and elevator scapulae origin
C7 - C5
C1-C4
rhomboids and elevator scapulae insertion
medial board of scapular
trapezius movement
upper fibres = adduction, elevation
middle = adduction
lower = adduction, depression, upwards rotation
trapezius origin
occipital bone
trapezius insertion
posterior of lateral 3rd of clavicle
medial accromin process
serrates anterior movements
abduction
upwards ration
serrates anterior origin
upper 9 ribs
serrates anterior insertion
along anterior and medial scapular
pectoralis minor movements
abduction
depression
downwards rotation
pectoralis minor origin
anterior surface of ribs 345
pectoralis minor insertion
coracoid process of scapula
elevation
Levator scapula
rhomboid
upper trap
depression
lower trap
pec minor
adduction
all trap
rhomboid
levator scapulae
abduction
serratus anterior
pec minor
upwards rotation
lower trap
serratus anterior
downward rotation
pec minor
rhomboid
levator scapulae
fractured clavicle
most common
due to impact
middle or lateral third
12 weeks
sling