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Ch 8

The Appenducular Skeleton- UPPER

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
Created by: Cfelts0324