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Ch 8
The Appenducular Skeleton- UPPER
| Question | Answer |
|---|---|
| This - of the shoulders & hips, attach the limbs to the axial skeleton | Girdles |
| The bones of the arms & legs | limbs |
| Upper & lower limbs include | the long bones of the arms and legs, the wrist and ankle bones, and all the bones in the hands and feet |
| includes the clavicle & scapula- movements position the shoulder & provide a base for arm movement | Pectoral girdle |
| Upper limb includes | Clavicle, scapula, humerus, radius, ulna, carpals, metacarpals, phalanges |
| Curved long bone, forms front of pectoral girdle | Clavicle |
| Attached arm to axial skeleton at the manubrium of sternum | Clavicle |
| Protects neurovascular structures, sternal end of manubrium, acromial end at scapula | Clavicle |
| Flat triangular bone that forms back of pectoral girdle | Scapula |
| Muscle anchor of shoulder- rotator cuff, deltoids, triceps & biceps | Scapula |
| Located in scapula- attaches to clavicle, acromioclavicular joint | Acromion |
| Bone the pokes out & goes from one end of scapula to other | Spine of scapula |
| Socket for humeral head- located in scapula | Glenoid Fossa |
| Crows beak- located in scapula | Coracoid process |
| Shoulder bones | Clavicle, spatula, humerus |
| Shoulder joints | Sternoclavicular joint, acromioclavicular joint, glenohumeral joint |
| The only bone of the upper limb | Humerus |
| Parallel in anatomical position, flex at elbow joint with humerus | Ulna & radius |
| Rotate at wrist (pronation, supination) | Ulna & radius |
| Medial- on pinky side | Ulna |
| Lateral- on thumb side | Radius |
| Flexes the elbow & extends the arm | Ulna |
| Olecranon process, Semilunar notch | Ulna |
| Wrist rotation | Radius |
| 8 short bones in each wrist | Carpal bones |
| Lunate & scaphoid sit directly on radius, trapezium is base of the thumb | Carpal bones |
| The Carpal Bones | Lunate, Scaphoid, trapezium |
| Numbered I-IV, dorsal & palmar surface (make up actual hand) | Metacarpals |
| Finger bones | Phalanges |