An infant born to 22-year-old female meets all developmental milestones. His height corresponds to the 60th percentile. Osteoblasts near the growth plates of his long bones convert to osteocytes and remain connected to each other by: A. Tight junctions B. Hemidesmosomes C. Intermediate junctions D. Gap junctions E. Desmosomes

Osteogenic stem cells give rise to all of the following cell types EXCEPT: osteoclasts O osteocytes O osteoblasts

1). Embryonic growth of the femur. What cell will this process start with? 2). What type of cartilage growth begins with this type of cell? 3). These cells, which are found at the perimeter, will divide to produce what kind of cell? 4). Once it is sorrounded by matrix it becomes a? 5). What process causes the cartilage model to grow length? 6). What type of cell starts this process? 7). The models for the long bones, including the femur develop between 8 and 12 weeks gestation. What type of tissue is this model? 8). After 12 weeks, the cartilage model begins to calcify it's process called? 9). This process starts in the future diaphysis of the bone. Here, chondrocytes get larger meaning they start to and eat away the cartilage matrix is?

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)…