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Test #5 (Kim) Humerus & Shoulder Girdle
Terms in this set (95)
The shoulder girdle consists of
Proximal humerus, scapula, clavicle
The humerus articulates with the ___ at the shoulder joint
The most proximal part of the humerus
Slightly constricted area directly below and lateral to the head of the humerus, which appears as a line of demarcation between the rounded head and the adjoining greater and lesser tubercles
Process directly below the anatomic neck on the anterior surface of the proximal humerus
Larger lateral process of the proximal humerus
Deep groove between the lesser tubercle and greater tubercle of the proximal humerus
Tapered area below the head, lesser tubercle and greater tubercle of proximal humerus
Part of the proximal humerus that is most frequently fractured
Rough, raised triangular elevation along the anterolateral surface of the body of the proximal humerus
The upper margin of the scapula is located at the level of which posterior rib?
The lower margin of the scapula is located at the level of which posterior rib?
The lateral end of the clavicle that articulates with the acromion of the scapula
The medial end of the clavicle that articulates with the manubrium
The joint between the acromion and the clavicle
The joint between the sternum and the clavicle
Which end of the clavicle is flat?
Which end of the clavicle is more triangular in shape?
The ___ clavicle is usually shorter and less curved then the ___ clavicle
Three borders of the scapula
Medial, superior, lateral
Border of the scapula that is the long edge or border near the vertebrae
Border of the scapula that is the uppermost margin
Border of the scapula nearest the axilla
Sometimes called the head of the scapula, it is the thickest part and ends laterally in a shallow depression called the glenoid cavity
Constricted area between the head and the body of the scapula
These refer to the upper and lower ends of the medial border of the scapula
Superior angle, inferior angle
The anterior surface of the scapula is called what because of it's proximity to the ribs?
The middle area of the costal surface of the scapula represents a large depression, known as the
Long, curved process that extends laterally from the scapula over the head of the humerus
Thick, beak like process of the scapula that projects anteriorly beneath the clavicle
A notch on the superior border of the scapula that is partially formed by the base of the coracoid process
Prominent structure on the posterior surface of the scapula
Posterior border or ridge of the spine of the scapula that is thickened
What are the names of the two fossae located on the posterior scapula?
Infraspinous fossa, supraspinous fossa
Three joints of the shoulder girdle
Sternoclavicular, acromioclavicular, scapulohumeral
What is the classification and mobility type of the three joints of the shoulder girdle?
What movement type is the scapulohumeral joint?
What movement type is the sternoclavicular joint?
What movement type is the acromioclavicular joint?
Which rotation shows an AP projection of the humerus?
Which rotation shows a lateral projection of the humerus?
Which rotation shows an oblique projection of the humerus?
When doing an external rotation of the humerus, what anatomy is seen in profile?
When doing an internal rotation of the humerus, what anatomy is seen in profile?
What type of rotation is being used when the humeral epicondyles are angled 45° to the IR?
What type of rotation is being used when the epicondyles are perpendicular to the IR?
What type of rotation is being used when the hand is supinated?
What type of rotation is being used when the palm of the hand is against the thigh?
What type of rotation is being used when the epicondyles are parallel to the IR?
What type of rotation is being used when the proximal humerus is in a lateral position?
True or false: the use of a grid is not required for shoulder studies that measure less than 10 cm
What KV range should be used for a shoulder series on an average adult?
70 to 80 KV
Is physical immobilization is required, which individual should be asked to restrain a child for a shoulder series?
Parent or guardian
Compression between the greater tuberosity and soft tissues of the coracoacromial ligamentous and osseous arch
Injury of the anteroinferior glenoid labrum
Inflammatory condition of the tendon
Superior displacement of the distal clavicle
AC joint dislocation
Compression fracture of the articular surface of the humeral head
Dramatic injury to one or more of the support of muscles of the shoulder girdle
Rotator cuff tear
Atrophy of skeletal tissue
Fluid filled joint space
Thin bony cortex
Abnormal widening of AC joint space
AC joint separation
Avulsion fracture of the glenoid rim
Narrowing of joint space
Closed joint space
What clinical indication would require a decrease in manual exposure factors?
Which two routine shoulder projections are taken for a shoulder (With no traumatic injury) and proximal humerus?
External rotation, internal rotation
Specifically, where is the CR placed for an AP projection of the shoulder?
1 inch inferior to coracoid process
Which lateral projection can be performed to demonstrate the entire humerus for a patient with a mid humeral fracture?
Transthoracic lateral projection
To best demonstrate a possible Hill-Sachs defect, which additional positioning technique can be added to the inferosuperior axial projection?
Rotate affected arm externally approximately 45°
What type of CR angulation is required for the inferosuperior axial projection of the shoulder?
25° to 30° medially
What projection of the shoulder produces an image of the glenoid process in profile?
Crashes or Posterior oblique
What projection produces a tangential projection of the intertubercular groove?
The supine version of the tangential projection for the inter-tubercular groove requires that the CR be angled ___ posteriorly from the horizontal plane
10° to 15°
What projection is best for demonstrating a possible dislocation of the proximal humerus?
Scapular Y projection
Special projection of the shoulder that best demonstrates the acromiohumeral space for possible subacromial spurs, which create shoulder impingement symptoms
Neer method or Tangential
Nontrauma projection that can be performed erect to provide a lateral view of the proximal humerus in relationship to the glenohumeral joint
PA transaxillary projection or Hobbs modification
How much is the CR angled for the inferiosuperior axial projection if the patient cannot fully abduct the arm 90°?
5° to 15°
SID for everything is 40 inches except
Cassette size for the humerus
14 x 17 for larger patients, 11 x 14 for smaller patients
Routine views for the humerus
AP, AP rotational lateral, horizontal beam lateral
Routine the use for shoulder
AP external rotation, AP internal rotation
Routine views for a clavicle
AP, AP axial
Routine views for scapula
AP, lateral, erect, recumbent
Routine for AC joints
AP bilateral with weights, AP bilateral without weights
CR for humerus
Midpoint of humerus
CR for shoulder
1 inch below coracoid process
Angulation for AP axial clavicle
15 to 30°
CR four AC joints
Midpoint between AC joints, 1 inch above jugular notch
When doing in AP axial clavicle, how do you know when to do 15° angle and went to do 30° angle?
Thin patient 30°, thick patient 15°
Best view for dislocation
Best view for fracture
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Ch. 5 Humerus & Shoulder Girdle
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