T/F The term osteoid refers to the organic part of the matrix of compact bones. |
True |
T/F Each consecutive bone lamellae has collagen fibers that wrap in alternating directions. |
True |
T/F In newborn infants, the medullary cavity and all areas of spongy bone contain yellow bone marrow. |
False |
T/F Bones are classified by whether they are weight-bearing or protective in function. |
False |
T/F Compact bone is replaced more often than spongy bone. |
False |
T/F All bones formed by intramembranous ossification are irregular bones. |
False |
T/F The structural unit of compact bone osteon resembles the growth rings of a tree trunk. |
True |
T/F Short, irregular, and flat bones have large marrow cavities in order to keep the weight of bones light. |
False |
T/F Bone tissue in the skeleton of a human fetus is completely formed at six months gestation. |
False |
T/F The periosteum is a tissue that serves only to protect the bone because it is not supplied with nerves or blood vessels. |
False |
Hematopoiesis refers to the formation of blood cells within the red marrow cavities of certain bones |
True |
An Osteon contains osteocytes, lamellae, and central canal, and is found in the compact bone only |
True |
The trabeculea of spongy bone are oriented toward lines of stress |
True |
cartilage has a flexible matrix that can accommodate mitosis of chondrocytes |
True |
Closure of the epiphyseal plate stops all bone growth |
False |
T/F The dividing cartilage cells in the epiphyseal plate are located farthest from the shaft. |
True |
An osteon contains osteocytes, lamellae, and a central canal, and is found in compact bone only. |
True |
Sixty-five percent of the mass of bone is a compound called hydroxyapatite. |
True |
CH6 AP1
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