Chapter 6 Flashcards
What does the shoulder girdle consist of
Scapula
Clavicle
Where does the shoulder girdle connect
Manubrium
Humerus
What is the clavicle categorized
Long bone
Is the curvature of the clavicle more acute in males or females
Males
What is the fulcrum for movement in the arm
Clavicle
What are the rotator cuff muscles
Infraspinatous
Supraspinatous
Teres minor
Subscapularis
What forms the y shape in a scapular y
Acromion
Coracoid process
Body of the scapula
Small synovial fluid filled sac that relieves pressure and reduces friction in tissue during joint movement
Shoulder bursae
Where are bursae found
Between bones & skin, bones and ligaments, muscles & tendons
What is bursitis
Inflammation of the bursae
What can injury to a bursae cause
Calcium deposits to be seen
EX: kidney stones
What type of joint is the scapulohumeral joint
Ball and socket
What type of joint is the acromioclavicular joint
Gliding
What type of joint is the sternoclavicular joint
Double gliding - acts as ball and socket bc of fibrocartiliginious disk
What connects to the manubrium and 1st rib cartilage
Sternal end of the clavicle
What 3 projections do you take for an AP shoulder
Neutral, external and internal
What’s the exposure field for an AP shoulder
10x12 inches
(24x30 cm)
Respiration for AP shoulder
Suspend
Where should the CR be directed for AP shoulder
1 inch below the Coracoid process
Where do you direct the CR for a AP scapula
2 inches below the Coracoid process
What is the hand placement for all 3 AP shoulder views
External - palm facing forward
Neutral - palm of hand against thigh
Internal - internal rotation until dorsal side of hand against thigh
What is the Lawrence method
Transthoracic lateral projection - arm over head CR directed at surgical neck of humerus of shoulder in question
Inferosuperior axial projection - arm out to create 90° angle with body, IR on top of shoulder, direct CR at 15-30° towards axilla (armpit) to AC articulation
scapular y projection
10x12
Anterior shoulder against IR rotated 45-60° toward IR
Scapula perpendicular to IR
Suspend respiration
CR perpendicular to Scapulohumeral joint
What is demonstrated using the Grashey Method
Glenoid cavity
Scapulohumeral joint
What is the rotation using the Grashey method
35-45° towards affected side
What is the SID for AP AC joints
72 inches
What views are done on clavicles
AP, AP axial, PA, PA axial (one AP/PA and one axial)
What is the CR angulation for axial view of clavicle
15-30°
Position for AP scapula
Arm abducted at 90° from body with forearm parallel with head (fingers up)
What is Neer method used to view
Posterior acromion
AC joint
What type of bone is the scapula
Flat bone
What do you use to evaluate the AC joint
Weights - one view without and one with
What is the thickest part of the scapula
Lateral angle
What is the Pearson method
AP AC joints with and without weights
What is the Neer method
Tangential supraspinatous outlet
What is the grashey method
AP oblique for the glenoid cavity
