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The shoulder girdle is formed by which two bones?
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The girdle is completed in the front by the sternum, which articulates with the:
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RA 102 Chapter 6

Shoulder Girdle

TermDefinition
The shoulder girdle is formed by which two bones? the clavicle and the scapula
The girdle is completed in the front by the sternum, which articulates with the: medial end of the clavicle
Because the proximal humerus is included in the shoulder joint, its anatomy is considered with the: shoulder girdle
The clavicle is classified as a long bone. T/F true
The clavicle lies in a horizontal oblique plane just above the: 1st rib and forms the anterior part of the shoulder girdle
The lateral aspect of the clavicle is termed the: acromial extremity, and it articulates with the acromion of the scapula
The medial aspect of the clavicle is termed the: sternal extremity, and it articulates with the manubrium of the sternum and the first costal cartilage
The clavicle is more thicker and double curved for which gender? more for males than females
The scapula is classified as a: flat bone, with a 45-60 degree angle in relation to the anatomic position
Triangular is shape, the scapula has: 2 surfaces, 3 borders, 3 angles
The 2 surfaces of the scapula are: anterior: sub-scapular fossa posterior: supraspinous fossa, spine, infraspinous fossa
The 3 borders of the scapula are the: superior, medial, and lateral borders
The 3 angles of the scapula are the: superior, inferior, and lateral angles
The superior angle is formed by the: junction of the superior and medial borders
The inferior angle is formed by the: junction of the medial (vertebral) and lateral borders, and lies over the 7th rib
Lying on the superposterior thorax between the 2nd and 7th ribs is the: medial border of the scapula that runs parallel with the vertebral column.
The dorsal surface of the scapula is divided into how many portions? 2 portions by a prominent spinous process
The 2 portions of the dorsal surface of the scapula are the: the supraspinous fossa and the infraspinous fossa
The dorsal surface of the medial border affords attachments to which muscles? the levator muscles of the scapula, the greater rhomboid muscle, and the lesser rhomboid muscle
The superior border extends from the: superior angle to the coracoid process
The lateral end has a deep depression called: the scapular notch
The medial border extends from the: superior to the inferior angles
The lateral border extends from the : glenoid cavity to the inferior angle
The lateral angle, the thickest part of the body of the scapula, ends in a shallow, oval depression called: the glenoid cavity
Where can the coracoid process be palpated? just distal and slightly medial to the acromioclavicular (AC) articulation
What are common positioning landmarks for shoulder radiography? the acromion, coracoid process, superior angle, and inferior angle
The proximal end of the humerus consists of: a head, an anatomic neck, 2 prominent processes called the greater and lesser tubercles, and the surgical neck.
Where is the lesser tubercle situated? on the anterior surface of the bone, immediately below the anatomical neck
The tendon of the subscapula muscle inserts at: the lesser tubercle
The superior surface of the greater tubercle slopes posteriorly at an angle of approximately: 25 degrees and has three flattened impressions for muscle insertion
What are bursae? small. synovial fluid-filled sacs that relieve pressure and reduces friction in tissue
Where are bursae often found? between the bones and the skin; and allows skin to move easily when joint is moved
One of the largest bursae of the shoulder is the: subacromial bursa
When does the bursae become important radiographically? when injury or age causes the deposition of calcium
The scapulohumeral articulation between the glenoid cavity and the head of the humerus form a: synovial ball-and-socket joint, allowing movement in all directions
The scapulohumeral articulation is often referred to as: the glenohumeral joint
What is the structural classification of the Scapulohumeral? synovial, ball-and-socket, freely movable
What is the structural classification of the Acromioclavicular? synovial, gliding, freely movable
What is the structural classification of the Sternoclavicular? synovial, double gliding, freely movable
Joints of the shoulder girdle: scapulohumeral, acromioclavicular, sternoclavicular
The acromioclavicular (AC) between the acromion of the scapula and the acromial extremity of the clavicle forms a: synovial gliding joint
The sternoclavicular (SC) articulation is formed by the sternal extremity of the clavicle with 2 bones: the manubrium and the 1st rib
Created by: nycems
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