Shoulder Joint Flashcards
name the two tubercles of the glenoid on the scapula
supraglenoid
infraglenoid
what attaches to the infraglenoid tubercle
long head of tricep
what attaches to the supraglenoid tubercle
long head of bicep
name the two articular surfaces of the distal humerus
capitulum and trochlea
what articulates with the capitulum
head of radium
what articulates with the trochlea
ulna
is capitulum medial or lateral?
lateral
what is the groove on the posterior surface of the humerus?
radial groove
what two things course along the radial groove?
radial nerve and deep brachial artery
what is the distal groove on the humerus? what passes through it?
ulnar…the ulnar nerve
what is the other name for the ulnar groove?
funny bone
a fracture mid way down the humerus leaves what nerve in trouble?
radial nerv
a fracture at top of or at surgical neck of humerus leaves what nerve in trouble?
axillary nerve
what is in the valves of veins in the arm to help venous return?
valves
name the three levels of veins in the arm
superficial
deep
perforating
which set of arm veins is paired and named to match the artery it runs with?
deep veins
what is the other name of the deep vein pairs?
venae communicantes
name the two large superficial veins of the arm
cephalic and basilic
which of cephalic or basilic is lateral and which is medial?
cephalic is lateral and basilic is medial
what is the name of the vein that communicated between the cephalic and basilic veins?
medial cubital vein
name the layer of fascia surrounding the arm
brachial fascia
where does the brachial fascia come from?
axillary fascia
how does the brachial fascia divide the arm up?
they compartmentalize it via medial and lateral intermuscular septa that connect to the humerus
how does the brachial fascia compartmentalizes muscles
with similar function and innervation
name the three muscles of the anterior compartment of the arm
biceps
coracobrachialis
brachialis
what nerve innervates the biceps, coracobrachialis and brachialis?
musculocutaneous nerve
where does the short head of the bicep originate?
coracoid process of scapule
where does the long head of the bicep originate?
supraglenoid tubercle