Chapter 6 - Biology: Bones and Bone Tissue

25 July 2022
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Cells that develop into osteoblasts are called:
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Osteogenic cells
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Osteoblast are to bone deposition as:
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osteoclasts are to bone resorption
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Relatively inactive bone cells that help to maintain the ECM are:
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Osteocytes
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What canals connect lacunae together?
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canaliculi
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The small, fluid-filled cavity occupied by an osteocytes is called a(n):
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Lacuna
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What is NOT a component of an osteon?
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trabeculae
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The structural units of mature compact bone are called?
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Osteons
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What type of bone is adapted to withstand stresses arriving from many directions?
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Spongy bone
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Branching "ribs" of bone present in spongy bone are known as:
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Trabeculae
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Intramembranous ossification occurs in
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Skull bone
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What cells contribute to the process of calcification during intramembranous ossification?
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osteoblasts
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Primary ossification centers develop in long bones in the
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Diaphysis
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Secondary ossification centers are characteristic of:
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Endochondral ossification
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What type of bone growth do you think a 40-year old male experiences?
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Appositional growth
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What tissue serves as the model for bones formed during endochondral ossification?
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Hyaline
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Which of the following structures in a bone persists for life?
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Articular cartilage
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In the epiphyseal plate of a long bone, cartilage grows:
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By pushing the epiphysis away from the diaphysis
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Appositional growth produces:
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Bone growth in width
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What term implies bone deposition via osteoblasts?
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calcification
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bone reposition requires the activity of:
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Osteoclasts
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Which dietary requirement for bone health can be made in response to skin exposure to UV light?
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Vitamin D
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Bone growth and remodeling depends on adequate intake of:
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Calcium, vitamin C, and vitamin K
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What hormone promotes an increase in the activity of osteoclasts?
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Parathyroids hormone (PTH)
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What vitamin deficiency causes rickets in children?
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Vitamin D
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Which hormone, produced by the thyroid gland, works opposite to parathyroid hormone (PTH)?
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calcitonin