Predict Question 1: What effect will the saline injections have on the control rat’s vertebral bone density? Your answer : a. The saline injections will increase the rat’s vertebral bone density (indicated by a less-negative T score).
Predict Question 2: What effect will the estrogen injections have on the estrogen-treated rat’s vertebral bone density? Your answer : a. The estrogen injections will increase the rat’s vertebral bone density (indicated by a less-negative T score).
Predict Question 3: What effect will the calcitonin injections have on the calcitonin-treated rat’s vertebral bone density? Your answer : a. The calcitonin injections will increase the rat’s vertebral bone density (indicated by a less-negative T score).
You scored 100% by answering 4 out of 4 questions correctly. 1. Saline injections were used in this experiment to measure the effect of You correctly answered: c. a placebo on bone density.
2. In the ovariectomized rats used in this experiment
You correctly answered: d. osteoporosis was evident prior to the injections of estrogen. 3. Injection of calcitonin into an ovariectomized rat will
You correctly answered: b. inhibit osteoclast activity and stimulate calcium uptake and deposition in long bones. 4. As the rat’s bone density increases
You correctly answered: a. the X-ray scanning assay reports a less-negative T-score.
