Shoulder Flashcards
What does the shoulder girdle consist of?
clavicle & scapula
The shoulder joint is _______ (classified by function) & _______ (classified by anatomy or structure)
diathrodal & synovial
What type of joint is the shoulder?
ball and socket
The clavicle is classified as what type of bone?
long bone
The scapula is classified as what type of bone?
flat bone
The scapula forms what portion of the shoulder girdle?
posterior
What part of the scapula touches the ribs?
the costal (anterior) surface
For the internal and external positions, how do you place the patient?
rotate patient slightly toward the affected shoulder & place body of the scapula parallel with the IR
For the internal AP projection, how do you place the hand/arm of the patient?
rotate arm internally and rest back of hand on the hip
For the external AP projection, how do you place the hand/arm of the patient?
rotate arm externally & supinate the hand
Where does the CR enter the patient for the AP projections?
1 in. inferior to the coracoid process
What anatomy are you trying to see with the external AP projection?
greater tubercle
What anatomy are you trying to see with the internal AP projection?
lesser tubercle
The PA oblique projection is also know as…
the scapular Y
What anatomy forms the “Y” shape in the PA oblique projection?
the acromion and the coracoid process
How should the patient be positioned for a scapular Y?
upright, turned 45-60 degrees with the affected shoulder closer to the IR
Where is the CR for a PA oblique?
perpendicular to scapulohumeral joint
What are the essential projections for a clavicle?
AP
PA
AP axial
PA axial
Where is the CR for an AP and PA clavicle projection?
perpendicular to the midshaft of the clavicle
How will you angle the tube for a AP axial projection?
15-30 degrees cephalic (towards the head)
How will you angle the tube for a PA axial projection?
15-30 degrees caudal (angled down)
What are the essential projections of the scapula?
AP & lateral
How do you position the patient for an AP scapula projection?
center affected scapula to grid, raise the arm to make a 90 degree angle & flex the elbow
Where is the CR for an AP scapula projection?
perpendicular to a point 2 in. inferior to the coracoid process
