| A | B |
|---|
| replacement of old bone tissue by new | remodeling |
| indicates osteoblasts outnumber osteoclasts | bone spurs/arthritis |
| helps absorb calcium from the gastrointestinal tract to the blood | vitamin D |
| absorbs calcium when bones cannot store the excess | kidneys |
| maintains the matrix | vitamin C |
| regulates osteoblast maturation to osteocytes | vitamin A |
| primary hormone(s) responsible for bone growth | hGH |
| hormone(s) that aid osteoblasts (especially at puberty) and close epiphyseal plates | testosterone & estrogen |
| stress that causes deposition of more minearals in the matrix | exercise |
| saw a loss of matrix minerals due to inactivity | astronauts |
| minute currents that respond to stress to increase osteoblast activity | piezoelectric effect |
| gender that begins losing calcium at age 30 | female |
| mineral neeeded for muscle contraction, clotting and nerve impulses | calcium |
| mineral needed for DNA, RNA and ATP | phosphorus |
| hormone(s) that speeds up calcium absorption from the blood & deposits it in the matrix | calcitonin |
| hormone(s) that increases osteoclast activity and releases calcium to the blood | parathyroid hormone |
| extra credit code word | pumpkin; e-mail it to me (lpolhamus@bishopdwenger.com) |
