Which of the following is NOT a mechanism that maintains pH of body fluids?
a) Buffer systems
b) Proteins
c) Phosphates
d) Carbonic acid-bicarbonate
e) All of these correct
e
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Neural regulation of digestive processes is accomplished exclusively by the enteric nervous system of the gastrointestinal tract
Indicate whether the statement is true or false.
The metabolic pathways of cardiac muscle make it
A. somewhat susceptible to heart attack, because it has so few mitochondria. B. relatively resistant to heart attack, because it uses exclusively anaerobic metabolism. C. somewhat susceptible to heart attack, because it relies so exclusively on aerobic metabolism. D. relatively resistant to heart attack, because it has a great capacity to accrue oxygen debt. E. extremely susceptible to heart attack, because it uses such a variety of fuel sources.
A sample of tissue displays many large flattened spaces lined by fenestrated endothelium. Blood moves slowly through these spaces. This tissue sample most likely came from the
A) heart. B) lungs. C) liver. D) kidneys. E) skin.
Explain how cortisol suppresses the immune system, and why this is sometimes a useful therapy. What are some negative side effects of cortisol therapy? Why do doctors prescribe cortisol in doses that taper off at the end of the therapy period? Why do doctors sometimes prefer to prescribe nonsteroidal anti-inflammatory drugs?
What will be an ideal response?