PART A The discussion assignment provides a forum for discussing relevant topics for this week based on the course competencies covered. For this assignment, make sure you post your initial response t

PART A

The discussion assignment provides a forum for discussing relevant topics for this week based on the course competencies covered.

For this assignment, make sure you post your initial response to the Discussion Area by the due date assigned.

To support your work, use your course and text readings and also use outside academic sources (no wikis, etc.). As in all assignments, cite your sources in your work and provide references for the citations in APA format.

Metabolism

Utilizing knowledge from your learning and assigned readings, respond to the following questions:

1. Ketosis develops in the postabsorptive state. What is ketosis? Why does it develop? What metabolic effects does it have?
2. What happens during protein catabolism? How is this related to nitrogen balance?
3. Briefly outline the role of the liver in glucose metabolism.

The Urinary System

Utilizing knowledge from your learning and assigned readings, respond to the following questions:

1. List each organ of the urinary system and concisely describe its function.
2. Identify and describe the three major processes involved in urine formation.
3. What is the creatinine clearance?

PART B

Utilizing knowledge from your learning and assigned readings, respond to the following questions:

1. The maintenance of normal volume and composition of extracellular and intracellular fluids is vital to life. List and briefly describe the kinds of homeostasis involved.
2. Why does maintaining fluid balance in older people require a higher water intake than in a normal, healthy adult under age 40?
3. Why does potassium concentration rise in patients with acidosis? What is this called? What effects does it have?
4. Saline solution is used to reverse hypotonic hydration. Are body cell membranes permeable to saline? Explain your response.
5. Explain the renin-angiotensin mechanism.
6. Explain how ADH compensates for blood that contains too many solutes.