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A 68-year-old man with chronic renal failure was in the hospital in serious condition recovering from a heart attack. He had just undergone “balloon angioplasty” to redilate his left coronary artery, and was thus on an “npo” diet (i.e. he was not allowed to have food or drink by mouth). […]

Ryan is a 30-year-old man who recently made the decision to talk with his doctor about a somewhat sensitive issue. He just celebrated his third anniversary with his wife, and they have started talking seriously about having kids. Though he knows this is a big step, Ryan has always wanted […]

Metabolism and Homeostasis 1. What is metabolism? 2. What is the difference between catabolism and anabolism? 3. What is the homeostasis? What are the sensors, effectors and controllers of homeostasis? 4. How do antagonistic mechanisms manage homeostatic regulation? 5. What is an instance of negative feedback of the homeostatic regulation? […]

The maintenance of homeostasis is of major importance to all organ systems in the body and the overall survival of the individual. Explain how homeostasis is the maintenance of a dynamic range of environmental qualities rather than holding the internal environment at a set point. What would be wrong with […]