Submit your completed calcium homeostasis assignment using the submission link.

BIOL 2401

BONE REMODELING ACTIVITY

The purpose of this assignment is to use the figure on the next page to explain the process of bone remodeling and the potential consequences of this process when things go wrong.

This assignment will help you practice the following skills:

• Interpreting a visual image

• Using a visual image to explain a concept

• Critical thinking

• Written communication

This assignment will help you gain the following knowledge:

• Understanding the importance of blood calcium balance in the body

• Understanding the role of parathyroid glands and various bone cells in the process of bone remodeling

• How relationship between blood calcium balance and bone disorders such as osteoporosis

Use the figure to answer the questions (all are on the next page). Each answer must be given in complete sentences.

You will work individually and submit one set of answers. Include your name on your submitted answers.

Answer the questions directly on this document so that the figure is included with your submitted answers.

Once completed, save the document with the following file name: HOMEOSTASIS_LAST NAME (replace “LAST NAME” with your last name!) Upload this document to the appropriate link in eCampus.

Acceptable file formats: .docx, .doc, .pdf, .rtf ONLY!

1. Answer in complete sentences.

2. Answer each question completely – this means that you should answer the questions as if you are explaining this concept to someone who knows nothing about this topic. Don’t assume the reader knows what you are talking about – be specific. “Explain” means: how do you know what you know?

3. Follow all document labeling and uploading instructions.

From the textbook: Figure 6.14 Parathyroid hormone (PTH)

control of blood calcium levels.

1. Describe what the image is showing. What is being balanced in this image? What is being used to illustrate this balance? (Answer this question as if you are describing this image to someone who can’t see it themselves.)

2. Explain the overall concept of how bone remodeling is controlled in the body. Refer to the image as you do this. Include the role of blood calcium levels, PTH, and osteoclasts in this balance. How do osteoblasts play a role?

3. Would hyperparathyroidism lead to an increased or decreased risk of osteoporosis? Use the image to EXPLAIN your answer.