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28 Cards in this Set
- Front
- Back
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what is the pectoral girdle
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the clavicle and scapula
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what is the only bony attachment to the trunk
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clavicle
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what is the first bone to begin ossification but the last bone to complete it
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clavicle
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what is the only attachment to the thoracic wall
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through the clavicle at the acromioclavicular joint
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head of humerus
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has a shallow curved head which forms the ball of the ball and socket joint
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greater and lesser tubercles
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attachemnt sites for muscles which act on shoulder joint
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anatomical neck of humerus
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located between the head and the greater and the greater and lesser tubercles
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intertubucular sulcus
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also called bicipital groove
seperates the greater and lesser tubercles |
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what muscle runs in the bicipital groove
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bicepss brachii
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surgical neck
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located inferior to the tubercles and is the point where the bone narrows into a cylindrical shape
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deltoid tuberosity
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located on the anteriolateral surface of the middle of the bone and is the attachment site of the deltoid muscle
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what does the capitulum of the humerus articulate with
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head of the radius
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what does the trochlea of the humerus articulate with
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the trochlear notch of the ulna
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where does the head of the radius fit when the elbow is flexed
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the radial fossa
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where does the head of the ulna fit when the elbow is flexed
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the coronoid fossa
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what nerve runs in the spiral groove?
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the radial nerve
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where does the ulna fit when the elbow is extended
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the oelcranon fossa
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where does the proximal end of the humerus commonly fracture
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surgical neck
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what will happen if the epiphyseal cartialge is torn as a child
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growth retardation of the limb
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what are the 3 articulations in the elbow joint
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humeroradial joint, humeroulnar joint, proximal radiolnar joint
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what does the radial notch articulate with
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the headof the readius at the proximal radioulnar joint
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where does the brachialis muscle insert on the ulna
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the ulnar tuberosity
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does the ulna participate in the wrist joint
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no
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where does the biceps brachii muscle attach to the radius
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radial tuberosity
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what is the function of the dorsal tubercle
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guides the tendon of the extensor pollicis longus
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does the radius participate in the wrist joint
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yes
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how are the radius and ulna positioned in supination
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the ulna and radius are parallel
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how are the radius and ulna positioned in pronation
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the head of the radius pifots on the capitulum of the humerus swinging the distal enod of the radius across the ulna
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