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Vertebral column
A series of vertebrae that encloses and protects the spinal cord, provides support for the head, and serves as an attachment point for ribs.
The process where bone forms and grows is called __________.
ossification.
The __________ is responsible for producing blood cells within the bone marrow.
red marrow.
The __________ provides a supportive structure and surrounds the spinal cord.
vertebral column.
Cells known as __________ are involved in the breakdown of old bone tissue.
osteoclasts.
The outer layer of bone is made up of dense, hard tissue known as __________ bone.
compact.
__________ bone is characterized by an irregular network that helps resist stress.
Spongy.
Bone-forming cells that lay down new bone tissue are called __________.
osteoblasts.
The __________ system consists of concentric rings and is the structural unit of compact bone.
Haversian.
A __________ fracture occurs when a bone partially breaks like a green twig without breaking completely.
greenstick.
The skeletal structure that includes the limbs and girdles is known as the __________ skeleton.
appendicular.
Note 
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