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20 Cards in this Set
- Front
- Back
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What single bone does the brachium contain?
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The humerus
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What is the longest and largest bone of the upper extremity?
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the humerus
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What is at the proximal end of the humerus and what does it articulate with, on what portion of the scapula?
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The head, articulates with the glenoid cavity, on the lateral portion of scapula
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What is adjacent to the head of the humerus, and what are the bony prominencescalled?
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2 tubercles, Greater tubercle and lesser tubercle
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What is positioned more laterally from the head of the humerus and what does it help do?
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Greater tubercle, forms the rounded contour of the shoulder
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Where is the lesser tubercle located and what lies between the 2 tubercles and what is the tendon that goes through it?
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located medially, intertubercular groove, contains one of the tendons of the biceps brachii muscle
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what is between the tubercles and the head of the humerus?
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The anatomical neck
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What location of the humerus marks the former epiphyseal growth plate?
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Anatomical neck
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What bone marking is a narrowing of the bone immediately distal to the tubercles, at the transition from the head to the shaft/
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The surgical neck
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why is the surgical neck called what it is?
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It is a common fracture site in the elderly
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What is the roughened area located on the shaft of the humerus?
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The deltoid tuberosity
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What muscle attaches to the deltoid tuberosity and what does movement does it to the arm?
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The deltoid, elevates the arm horizontally
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What is found at the distal end of the humerus?
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Medial and lateral epicondyles, the capitulum, and the trochlea
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What is the lateral rounded condyle that receives the radius?
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The capitulum
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What is the pulley-shaped feature that articulates with what bone?
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Trochlea, articulates with the ulna (trochlear notch)
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What is on either side above the condyles, why are they there?
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The lateral and medial epicondyles, serves as a place for muscle attachment
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What do you really hit when you hit your funny bone?
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The ulnar nerve
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What are the 3 depressions at the distal end of the humerus?
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radial fossa, the coronoid fossa, and the olecranon fossa
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What shallow depressions are located on the anterior and distal end of the humerus?
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radial fossa and the coronoid fossa
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Where is the olecranon fossa located?
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on the posterior distal end of the humerus
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