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40 Cards in this Set
- Front
- Back
The shoulder is used for mobility necessary for ________, ________, _________, and ________.
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Reaching, grasping, lifting, and throwing
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What two bones make up the shoulder?
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Clavicle and scapula
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True or false: The 2 scapula are attached to the spine.
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False: They are not attached to the spine. They move when the arm moves
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Where is the only articulation for the shoulder joint?
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Between the clavicle and the sternum
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What are the 3 main parts of the sternum?
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- Maunbrium (head)
- Body - Xiphoid process |
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What is the name of the notch between the sternum and clavicle joint?
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Suprasternal notch
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Which ribs articulate with the sternum, and where are the rest of the ribs?
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- Ribs 3-7 articulate with the sternum
- The next 3 meet into rib 7 - The last 2 are floating |
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Which bone is flat and shaped like an "S"?
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Clavicle
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The clavicle spans the distance between which two bones?
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Sternum and scapula
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What does the clavicle do for the arm?
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Holds it at a distance to prevent it from interfering with rib movement
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On the clavicle, which end is smooth, which end is rough, and why is there a difference?
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The top is smooth, and the bottom is rough--because of the multiple muscle attachments.
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Why is the medial end of the clavicle rounded?
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For articulation with the sternum
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What does the lateral end of the clavicle articulate with?
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Acromioclavicle joint
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T/F: The lateral end of the clavicle is flat.
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True
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What are the 2 important bony landmarks that serve as ligament attachments on the clavicle?
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- Conoid tubercle
- Trapezoid line |
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Which bone is triangular-shaped?
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Scapula
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What is the texture of the inside of the scapula?
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Smooth
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Places on the scapula with a lot of movement are ________?
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Thicker
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What are the three borders of the scapula?
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- Vertebral (medial)
- Axillary (lateral) - Superior |
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What are the three angles of the scapula?
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- Inferior
- Superior - Lateral |
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What is the coracoid process?
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- An important landmark for muscle attachments
- Like a finger - Anterior |
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Where is the spine of the scapula?
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- Posterior
- Turns into the Acromion process |
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What is the glenoid fossa, and what are it's characteristics?
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- Socket for humerus
- Shallow - Easily injured |
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Where is the subscapular fossa?
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- Anterior side
- Hollow section |
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Where is the supraspinous fossa?
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- Posterior side
- Above spine - "It holds soup!" |
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Where is the infraspinous fossa?
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- Posterior side
- Below spine |
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What are the actions possible at the scapula?
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- Elevation
- Depression - Abduction - Adduction - Upward rotation - Downward rotation - Forward tilt - Return from forward tilt |
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On which bone can the bicipital groove be found?
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Humerus
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On the distal end of the humerus, what do the medial and lateral epicondyles articulate with?
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The radius and ulna
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What movement of the elbow does the capitulum allow for?
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Flexion, extension, and rotation
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What does the capitulum articulate with?
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Radius
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What does the trochlea of the humerus articulate with?
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Ulna
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What movement does the trochlea allow at the elbow?
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Flexion and extension
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What is the "carrying angle"?
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What places the forearm further away from the body due to the longer length of the medial trochlea
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What kind of overuse injuries can occur due to the carrying angle?
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Tennis elbow, nurse maid's elbow, etc.
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What are 2 reasons the shoulder joint has a great capacity for movement?
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- The joint isn't as deep as the acetabulum of the hip
- The free floating system of the scapula |
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What is the articulation of the shoulder joint?
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Between the head of the humerus and the glenoid fossa
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The sternoclavicular joint is a direct pathway from the _____ to the ______.
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- arms
- trunk |
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The sternoclavicular joint is almost like a ______ and ______ joint.
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ball and socket
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The meniscus is to the knee as the __________ is to the shoulder.
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Intra-articular disc
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