Scapula Flashcards
What is another name for scapula?
Shoulder blade
What does the scapula overly?
2nd - 7th ribs.
The scapula has a _____ posterior surface and is unevenly divided by the ________ of the scapula into the ________ and _______.
convex; spine; supraspinous fossa (small); infraspinous fossa (larger).
The concave costal surface of the scapula has a large _____
subscapular fossa.
Which border of the scapula is thickest?
lateral.
The spine of the scapula continues laterally, expanding to form the ____.
Acromion.
What is the acromion?
The subcutaneous point of the shoulder that articulates with the acromial end of the clavicle.
Superolaterally, the lateral surface of the head of the scapula has a ____ that articulates with?
Glenoid cavity which articulates with the head of the humerus at the glenohumeral (shoulder) joint.
What is the glenoid cavity?
a shallow, concave, oval fossa which is directly anterolaterally and slightly superiorly and is consideranly smaller than the head of the humerus for which it serves as its socket.
What beak-like process is superior to the glenoid cavity and projects anerolaterally?
Coracoid.
What is the most stable ligament?
Sternoclavicular
What is the most unstable ligament?
Glenohumeral
What are the four joints of the shoulder?
- Sternoclavicular
- Acromioclavicular
- Glenohumeral
- Scapulothoracic
