The Appendicular Skeleton

The Appendicular Skeleton - The Appendicular Skeleton The...

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The Pectoral Girdle and Upper Limbs The Appendicular Skeleton Upper and lower limbs Pectoral and pelvic girdle Pectoral girdle (shoulder girdle) • Articulates the upper limbs with the trunk • Consists of clavicle and scapula Clavicle and scapula • Position the shoulder joint • Help move the upper limb • Provide a base for muscle attachment Scapula markings are attachment sites for tendons/ligaments of shoulder joint The upper limbs • Scapula articulates with the humerus at the glenohumoral joint • Greater and lesser tubercles are muscle attachment sites Humerus Carpal bones and hand • Carpus forms wrist • Two rows of short bones • Distal row articulates with metacarpals • Four fingers have three phalanges • Pollex (thumb) has two The pelvic girdle and lower limbs • More massive than the pectoral girdle • Consists of two os coxae
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The Appendicular Skeleton - The Appendicular Skeleton The...

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