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Osteoporosis and Less-negative T Score

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Osteoporosis and Less-negative T Score
Name: EJER4.ACT3
Exercise 4: Endocrine System Physiology: Activity 3: Hormone Replacement Therapy Lab Report
Pre-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
1. Follicle-stimulating hormone (FSH)
You correctly answered: d. stimulates ovarian follicle development.
2. Estrogen
You correctly answered: d. is produced by developing ovarian follicles.
3. Calcitonin
You correctly answered: b. works against the development of osteoporosis.
4. Which of the following statements is true?
You correctly answered: c. The ovaries stop secreting estrogen after menopause.

10/20/13

page 1

Experiment Results
Predict Question:
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). Experiment Data:
Rat

Elapsed Days

Saline injections

Estrogen injections

Control
Estrogen
Calcitonin

7
7
7

7
0
0

0
7
0

10/20/13

page 2

Calcitonin injections 0
0
7

T score
-2.84
-1.65
-2.07

Post-lab Quiz Results
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
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