Shoulder Region I Flashcards
list bones in shoulder region:
clavicle, scapula, humerus
function: clavicle
- rigid moveable strut
- suspends scapula and allows max limb movement
theoretical features: clavicle
- long bone
- no medullary cavity
- shell of compact bone covering spongy bone
- varies shape depending of activity
clavicle: identify concave/ convex sides
- concave: lateral ‘acromial’ end
- convex: medial sternal end
clavicle: lateral side articulates with
acromion
clavicle: medial side articulates with
manubrium of sternum, and first costal cartilage
clavicle: conoid tubercle found/ for
- conoid ligament attaches here
- near lateral side
where does coracoclavicular ligament attach on clavicle?
conoid tubercle and trapezoid line
where does subclavius muscle meet clavicle?
groove for subclavius muscle middle of clavicle
where does costoclavicular ligament attach?
impression near sternal end
how to diagnose fractured clavicle:
bone protruding above normal shoulder
scapula: posterior and anterior surface fossa?
anterior: costal- subscapular fossa
posterior: infraspinous fossa (inferior to spine), supraspinous
scapula: angles
- superior angle (highest point)
- inferior (apex, lowest)
- lateral angle (near glenoid cavity)
scapula: borders
- lateral (under glenoid)
- medial (mid scapula)
- superior (top)
scapula: list/locate tubercles
infraglenoid - inferior to glenoid cavity
supraglenoid - superior to glenoid cavity
infraglenoid tubercle attachment:
long head of triceps brachii
supraglenoid tubercle attachment:
long head of biceps brachii
scapula: list/ locate processes
- coracoid (anterolateral)
- acromion (posterolateral)
- spinous proccess (dorsal)
proximal humerus: head articulates with
glenoid cavity of scapula
proximal humerus: list tubercles
lesser and greater tubercle
proximal humerus: lesser tubercle attachments
- subscapularis
proximal humerus: greater tubercle attachments
- supraspinatus
- infraspinatus
- teres minor
proximal humerus: whats found in intertubercular sulcus?
aka bicipital groove,
tendon of long head of biceps brachii
proximal humerus: attachment to lateral lip of intertubercular sulcus?
pectoralis major muscle