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What makes up the arm?
- Pectoral Girdle (Clavicle/Scapula)
- Humerus
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What makes up the forearm?
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What makes up the hand?
- Carpals
- Metacarpals
- Phalanges
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- Clavicle- the only connection between to the sternum
- Where the appendicular skeleton attaches to the axial skeleton
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- Acromial end
- Flat in appearance
- Surface for articulation with acromion on lateral end
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- Conoid tubercle
- Bump on the inferior aspect
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- Sternal end
- Triangle in shape; a little thicker
- Surface for articulation with manubrium of stemum and first costal cartilage
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Anterior/Posterior Scapula
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- Inferior Angle
- The point of the scapula
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- Coracoid Process
- C shape protrusion important for muscle attachment
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- Glenoid Cavity
- Where the arm articulates like the acetabulum
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- Subscapular fossa
- Fossa=Large divot
- Sign you are looking at the front of the scapula
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- Supraspinous Fossa
- Fossa above the spine of scapula
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- Acromion
- Where the spine ends into a large blunt surface
- Behind caracoid
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- Spine of scapula
- Signifies the back
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- Infraspinous fossa
- Below the spine
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- Anterior/Posterior view of the Humerous
- Articulates w/scapula
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- Greater tubercle
- Lateral muscle attachment
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- Lesser tubercle
- Comes straight at us when looking at the anterior
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- Head of humerus
- Goes into the glenoid cavity
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- Intertubercular sulcus
- Grove in between the tubercle
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- Coronoid fossa
- Small groove above the trochlea
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- Medial Epicondyle
- Bone protrudes
- "Funny bone"
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- Trochlea Condyle
- Medial
- Looks like a spool of thread
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- Capitulum Condyle
- Lateral
- Looks like a bead
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- Radial Fossa
- Small groove
- Forearm articulates here when you flex
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- Surgical Neck
- Where the bone thins out
- Place where the bone breaks most often
- Where the growth plate was
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- Deltoid tuberosity
- Roughened on shaft
- Comes out laterally
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- Olecranon fossa
- Large groove
- Ulna fits in here when arm is extended
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- Glenohumeral Joint
- Shoulder joint
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Anterior/posterior view of Radius & Ulna
- Ulna is medial and "eats the trochlea
- Allows movement
Radius is lateral
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- Olecranon Process
- The top of the "C"
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- Trochlear notch
- Cut out for trochlea
- Curve of "C"
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- Coronoid Process
- Bottom part of "C"
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- Styloid process of Ulna
- Comes off of the head
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- Radial Tuberosity
- Biceps attach here
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- Styloid process of Radius
- More lateral
- Similar to the ankle
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- Proximal Row:
- Scaphoid, lunate, triquetrum, pisiform
- Distal Row:
- Trapezium, trapezoid, capitate, hamate
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