12. Which of the following choices is CORRECT? A. trabeculae is the basic functional unit of compact bone B. Ca3(PO4) (hydroxyapatite) is the organic minerals contained in bone extracellular matrix C. Testosterone is hormone that is used in homone therapy to reduce osteoporosis in males D. Rickets is a condition that may cause bow legs in a child E. Parathyroid hormone (PTH) functions to increase the level of Ca in the blood F. All of the above G. Both A and B H. C, D and E

24. Osteoblasts secrete the organic bone matrix called osteoid. It is composed of __________ a. collagen b. ground substance c. hydroxyapatites  d. a and b e. a, b, and c

1. How do monosodium urate crystals cause gout to develop? 2. What is the main objective clinical finding in fibromyalgia? 3. How do metabolic muscle diseases develop? What causes them? 4. Name one toxic myopathy and explain why it develops. 5. From what cells do bone tumors originate? 6. Compare five major characteristics of benign bone tumors with those of malignant bone tumors. 7. How does the presence of metastatic tumors affect treatment options and prognosis of persons with osteosarcoma?

13. Briefly descīibe how each of the following affect bone development, growth and maintenance: Calcium. Phosphorus, Protein, Vitamin D (calcitriol), sex hormones (estrogen & testosterone), gravity and activity. 14. Describe how Parathyroid Hormone and Calcitonin and the bones are involved in the negative feedback control of blood Ca2+ levels. 15. Differentiate compound and simple fractures. Describe the following fractures and identify the common population for: greenstick, comminuted, spiral, and compression. 16. Describe the basic steps of bone healing.

What is the answer??

17. Bones grow in diameter due to bone formation

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12. Which of the following choices is CORRECT?  A) trabeculae is the basic functional unit of compact bone  B) Ca(PO.), (hydroxyapatite) is the inorganic minerals contained in bone extracellular matrix  C.) Testosterone is hormone that is used in hormone therapy to reduce osteoporosis in males  D.) Rickets is a condition that may cause bow legs in a child  E.)Parathyroid hormone (PTH) functions to decrease the level of calcium in the blood  F) All of the above  G) A, B, and E  H)Both C and D G    13. In young persons, the epiphyseal plate is composed of. in the which plays an important role during growth.  A. cartilage : thickening of bone  B. bone marrow : elongation of bone  C. bone marrow : thickening of bone  D. cartilage : elongation of bon  E. bone : thickening of bone  F. epithelial tissue: absorption and secretion    14. Which of the following do NOT causes of the osteoporosis?  A. lack of physical stress on the bones  B. postmenopausal lack of estrogen  C. Old age (elderly)…

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7. Explain why bone matrix is a composite material.  Name the two main materials involved and the properties that they each confer to bone.