Shoulder (Outline 14) Flashcards
Nerve Innervation to shoulder?
Blood supply?
brachial plexus (anterior rami of C5-T1)
branches of subcalvan and axiallries
Muscles of shoulder?
Direct to Humerus
Extrinsic
Intrinsic
Extrinsic muscle?
movement of shoulder girdle in relative to axial skeleton (attachment of shoulder girdle with vertebrae)
Intrinsic muscle
Movement free limbs relative to the shoulder girdle
What are the anterior extrinsic muscle?
subclavius
pec minor
What are the posterior extrinsic muscle?
levaetor scapula
trapezius
rhomboid major/minor
What part of muscle is the serratus anterior in?
extrinsic muscle of shoulder
What are the intrinsic muscles?
SITS ( supraspinatus, infaspinatus, teres minor, subscapularis)
teres major
deltoids
OIANB of supraspinatus?
Supraspinous fossae of scapula
top of greater tubercle of humerus
abduction of humerus/ stabilize head of humerus
suprascapular N
suprascapular A
OIANB of infraspinatus?
infraspinous fossa of scapula
middle facet of greater tubercle of humerus
lateral rotation/ extension of humerus
suprascapular N
suprascapular A
OIANB of teres minor
Upper 2/3 of dorsal surface of axillary border of scapula
lower facet of greater tubercle of humerus
lateral rotation
axiallary nerve
post humerus circumflex a
OIANB of subscapularis
lesser tubercle of humerus
internal rotation
Upper/Lower subscapular N
Circumflex Scapular A
OIANB of teres major
posterior surface of inferior border of scapula
medial lip of intertubercular groove of humerus
lateral rotation and extension of humerus
lower subscapular nerve
circumflex scapular artery
OIANB of deltoids
What are the muscles in common that attach to poster ior vertebral/medial border of scapula
levator scapula. rhomboid major/minor
What does deltoids and trapezius have in common?
lats & major in common?
deltoids & teres minor
Rhomboids & Levator Scapulae
origin and insertion
same actions
Axillary N and PHCA
Dorsal Scapular N + A
Name muscle in Pink/Green/Yellow
What do they have in common?
Levator Scapulae
Rhomboid Minor
Rhomboid Major
Dorsal Scapular A+N
What does subscapularis and teres major have in common?
Circumflex Scapular Artery
What muscles have lateral rotation of humerus?
teres minor
infraspinatus
teres major
What are the joints in shoulder
Sternoclavicular
Acromioclavicular
Glenohumeral
Scapulothoracic
What joint of shoulder is pseudo?
scapulathoracic
Motion of scapularthoracic joint
Elevation/Depression
Protraction/Retraction
Rotation
Muscles involved in Elevation of scapularthoracic joint
Muscles involved in Depression of scapularthoracic joint
Upper Trapezius/ Levator Scapulae
Lower Traps/ Pec Minor
Muscles involved in Protraction of scapularthoracic joint
Muscles involved in Retraction of scapularthoracic joint
Pec Minor/ Serratus Anterior
Rhomboids/Middle Trapezius
Scapulathoracic Joint
joint between scapula and thorax
Sternoclavicular Joint
Joint between sternum (clavicular notch of manubrium) and clavicle (proximal end of clavicle)
What connect between proximal end of clavicle and clavicular notch of manubrium
articular disk
What does fibrous capsule do in sternoclavicular joint?
surround the joint capsule and perimeter of articular disk
What are major ligaments in sternocalvicular joint?
anterior/posterior sternoclavicular lig
costoclavicular
interclavicular
Describe ant/post sternoclavicular lig
costoclavicular lig
interclavicular
between sternum and clavicular
between medial inferior border of clavicle and costal cartilage 1st ribs
between clavicles
Blood supply for sternoclavicular joint?
clavicular branch of thoracoacromial trunk
internal thoracic
inferior thyroid branch of thyrocervical trunk
Function of ant/post sternoclavicular lig
costoclavicular lig
interclavicular lig
blended in with joint capsule to reinforce the joint
prevent the clavicle pop up during depression/elevation
prevent the clavicle pop out during protraction