You need to login first

Login information

Haven't yet registered?

×

Categories

Homework Help Boards (University / College Level)

Biology-Related

Science-Related

Others

Laboratory Help


Non-Homework Help Boards

Notes

Guidance

Discussion

×
* * * *

Support Us

If you found our community helpful, your small donation will continue to help us reach more students around the globe. You may also like us on Facebook or follow us on Twitter.
Pages: 1     Go Down
  New Topic  |  more  
PhysioEx exercise 4
Read 15524 times | 3 Replies | Average Rating Not Rated Yet
Jellyfish
*
Posts: 10
Points: 25
Rep:  +0  -0 

For a more comfortable homework help experience, try HomeworkClinic.com.
Please help!
EXERCISE 4
Endocrine System Physiology


Metabolism
The following questions refer to Activity 1: Determining Baseline Metabolic Rates.
1. Which rat had the fastest baseline metabolic rate?

2. Compare the baseline metabolic rates for the thyroidectomized rat and the normal rat and explain your results.

3. Compare the baseline metabolic rates for the hypophysectomized rat and the normal rat and explain your results.

The following questions refer to Activity 2: Determining the Effect of Thyroxine on Metabolic Rate.

4. What effect did administering thyroxine have on each of the rats?



5. Explain why thyroxine had these effects.


The following questions refer to Activity 3: Determining the Effect of TSH on Metabolic Rate.
6. Was there a change in the metabolic rate of the thyroidectomized rat with the administration of TSH? Explain your results.


7. Did the results for the thyroidectomized rat indicate hyperthyroidism or hypothyroidism?

The following questions refer to Activity 4: Determining the Effect of Propylthiouracil on Metabolic Rate.

8. Describe the effect of administering propylthiouracil on each of the rats, and explain why it had this effect.


9. Do you think the drug propylthiouracil is used to treat hypothyroidism or hyperthyroidism? Explain your answer.

Hormone Replacement Therapy
The following questions refer to Activity 5: Hormone Replacement Therapy.

10. Explain why ovariectomized rats were used in this experiment and correlate this to their baseline T score.


11. Recap your predictions regarding the effects of calcitonin and estrogen on bone density and explain why you made those predictions.


12. Why was one of the ovariectomized rats injected with saline?

13. What effect did the administration of estrogen injections have on the estrogen-treated rat?

14. What effect did the administration of calcitonin injections have on the calcitonin-treated rat?

15. How did your results compare to your predictions?


Insulin and Diabetes
The following question refers to Activity 6: Obtaining a Glucose Standard Curve.


16. What is a glucose standard curve, and how can you use this tool to determine a concentration of glucose?

The following questions refer to Activity 7: Measuring Fasting Plasma Glucose.

17. Which patient(s) had glucose reading(s) in the normal range?

18. Which patient(s) had glucose reading(s) in the diabetic range?

19. Which patient(s) had glucose reading(s) in the impaired range?

20. Describe the diagnosis for Patient 3.
 
The following questions refer to Activity 8: Measuring Cortisol and Adrenocorticotropic Hormone.
21. Which patient would most likely be diagnosed with Cushing’s disease? Why?


22. Which two patients have hormone levels characteristic of Cushing’s syndrome?

23. Patient 2 is being treated for rheumatoid arthritis with prednisone. How does this change the diagnosis?

24. Which patient would most likely be diagnosed with Addison’s disease? Why?

Report this PostReport Abuse
Reply# 1
*
Posts: 8372
Points: 4989
Rep:  +401  -11 
PhysioEx exercise 4
3 years ago
Ms. Lovely Nurse, you know I can't give you all the answers, but I will start you off with these:

Activity 2: Determining the Effect of Thyroxine on Metabolic Rate (p. 47)

7. On the normal rat, the is faster than the baseline metabolic rate. The action of thyroxine is to increase the metabolic rate of all cells. On the thyroidectomized rat, the metabolic rate after thyroxine injection is faster than the baseline metabolic rate. The injected thyroxine compensated for the thyroxine lost when the thyroid was removed. On the hypophysectomized rat, the metabolic rate after thyroxine injection is faster than the baseline metabolic rate. The injected thyroxine compensated for the thyroxine lost when the pituitary gland was removed. The pituitary gland did not produce TSH, therefore the thyroid gland did not produce thyroxine.

Activity 3: Determining the Effect of TSH on Metabolic Rate (pp. 47–48)

7. On the normal rat, the metabolic rate after TSH injection is faster than the baseline metabolic rate. The TSH increased production of thyroxine. On the thyroidectomized rat, the metabolic rate after TSH injection is the same as the baseline metabolic rate.

Since there is no thyroid gland in the thyroidectomized rat, the injected TSH had nothing to act upon. , On the hypophysectomized rat, the metabolic rate after TSH injection is faster than the baseline metabolic rate. The injected TSH compensated for the TSH lost when the pituitary gland was removed, and spurs production of thyroxine.




Report this PostReport Abuse
 
Reply# 2
Posts: 4
Points: 110
Rep:  +1  -0 
PhysioEx exercise 4
3 years ago
do you know where I can get an answer key to the physioex 8.0 for A&P exercises?


Report this PostReport Abuse
Reply# 3
Posts: 5
Points: 100
Rep:  +0  -0 
PhysioEx exercise 4
3 years ago
17. Which patient(s) had glucose reading(s) in the normal range?  patient # 1

18. Which patient(s) had glucose reading(s) in the diabetic range? patients #3 and #5

19. Which patient(s) had glucose reading(s) in the impaired range? patients #2 and #4

20. Describe the diagnosis for Patient 3. D.: gestational diabetes, sugars in the diet should be limited.

The following questions refer to Activity 8: Measuring Cortisol and Adrenocorticotropic Hormone.
21. Which patient would most likely be diagnosed with Cushing’s disease? Why? patient # 3 as levels of cortisol and ACTH were both high


22. Which two patients have hormone levels characteristic of Cushing’s syndrome? patients #2 and #5

23. Patient 2 is being treated for rheumatoid arthritis with prednisone. How does this change the diagnosis?Cushing's syndrom of Patient #2 is iatrogenic. D.: steroid diabetes

24. Which patient would most likely be diagnosed with Addison’s disease? Why?


Report this PostReport Abuse
Pages: 1     Go Up New Topic more
 
Related Topics
Note: This topic is currently locked from adding new posts. Only administrators and moderators can reply. If you'd like to contribute to this topic, start a new thread and make reference to this one. Otherwise, contact a moderator for more options.

Ask a Question

ask
Click to ask a question. 687 Students and 76 members are standing by to answer all your science and biology homework problems, free. So far today, 584 guests have joined.
Related Images
Views
649
Rating

Views
794
Rating

Views
969
Rating