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clavicle/scapula ana
anatomy of clavicle and scapula for comp
Question | Answer |
---|---|
What type of bone is the clavicle? | long bone |
Where does the clavicle lie in the body? | just above the first rib |
What is the function of the clavicle? | serves as a fulcrum for arm movements |
What type of bone is the scapula? | a flat bone |
Where does the scapula lie in the body? | superoposterior thorax between the 2nd and 7th ribs |
Alternate name for the anterior surface of the scapula? | costal |
Where does the subscapularis muscle attach? | subscapular fossa |
Where does the anterior serratus muscle attach? | the medial border of the anterior surface |
Alternate name for the posterior surface of the scapula | dorsal |
What is the origin of the supraspinatus muscle? | supraspinous fossa |
What is the alternate name for the medial border of the scapula? | vertebral |
What is the alternate name for the lateral border of the scapula? | axillary |
Which tubercle on the humeral head is more anterior? | lesser tubercle |
The lesser tubercle serves as an insertion point for: | the subscapular muscle |
Which tubercle of the humeral head is on the lateral aspect? | greater tubercle |
What are the 2 names for the area between the greater and lesser tubercles of the humeral head? | intertubercular or bicipital groove |
How is the greater tubercle of the humeral head situated? | It slopes posteriorly 25 degrees |
Name the 3 muscle attachments of the greater tubercle of the humeral head | supraspinatus, infraspinatus, teres minor |
scapulohumeral joint type | ball and socket |
acromioclavicular joint type | gliding |
sternoclavicular joint type | double gliding |
what forms the sternoclavicular joint? | cartilage of the first rib, manubrium, medial facet |