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the axial division includes the pieces of the body that are medial to the other parts of the body.
consists of 80 bones making up the skull, rib cage and vertebral column.
- Support and protection for the organs within the dorsal and ventral body cavities.
- Provides the framework for the attachment of muscles that
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| The Appendicular Division |
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Consists of 126 bones making up the appendages and girdles that connect appendages to the body. The pectoral girdle consists of the clavicle and scapula. The pelvic girdle is formed by the two coxal bones which are fused anteriorly.
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are bones with complex shapes. Examples are the spinal vertebrae, the sphenoid and ethmoid.
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are thin, plate-like bones consisting of two layers of compact bone sandwiching spongy bone. These bones are light but very strong. Examples would be the cranial bones (frontal, parietals, temporals and occipital) which protect the brain, the ribs, sternum and scapula.
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are box-like in appearance. Externally, they are covered with compact bone. The interior contains spongy bone. Examples would be the wrist bones (carpals) and ankle bones (tarsals).
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Each long bone has ends or epiphyses, a shaft or diaphysis and marrow cavities. They are found in the upper and lower appendages, e.g., the humerus, radius, ulna, femur, tibia, fibula, metacarpals, metatarsals and phalanges.
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