Test Bank for Human Physiology 16th Edition BY(Whitney/Rolfe's) All Chapters 1 to 20 complete Verified edition ISBN:9780357447512

Test Bank for Human Physiology 16th Edition BY(Whitney/Rolfe's) All Chapters 1 to 20 complete Verified edition ISBN:9780357447512 What does the study of disease processes aid in understanding? - ANS = Normal functions. What do Phase IV clinical drug trials involve? - ANS = Testing a drug only on the specific human population who have the condition that the drug is intended to treat. What is the result of negative feedback? - ANS = A response that opposes the original deviation from normal. Is blood clotting an example of positive feedback? - ANS = Yes, because the action of the effector enhances the stimulus. What is the purpose of daily thyroid hormone replacement medication? - ANS = To maintain normal thyroid hormone levels. What does stratified epithelial tissue provide? - ANS = Protection, but it does not transport substances between the internal and external environments. What is the function of sebaceous glands? - ANS = To lubricate the skin. Can enamel be regenerated? - ANS = No, enamel cannot be regenerated. How can motor nerve fibers in the skin regulate blood flow? - ANS = By affecting the diameter of cutaneous blood vessels. Are blood plasma and interstitial fluid separated from each other? - ANS = Yes, but there is communication and exchange between these fluids. What does physiology emphasize? - ANS = Cause-and-effect mechanisms. What is the study of how disease or injury alters physiological processes called? - ANS = Pathophysiology. What is the first step in the scientific method? - ANS = The formation of a hypothesis. Which phase of clinical trials maximizes the number of test participants? - ANS = Phase III clinical trials. What do Phase I clinical trials NOT involve? - ANS = Testing on the target human population. What is the term for measurements in an experiment where the subject's group status is unknown? - ANS = Blind measurement. What makes a hypothesis scientific? - ANS = It can be tested. What must a theory be based on to be considered scientific? - ANS = Reproducible data. What is the normal range of blood glucose concentration after fasting? - ANS = Approximately 70 to 99 mg/100 ml. What is the normal range of arterial blood pH? - ANS = 7.35-7.45. In a feedback loop, what does the integrating center send information to? - ANS = The effector. What are the regulators of effectors in most feedback loops? - ANS = Hormones and nerve impulses. What are homeostatic regulatory mechanisms that are 'built-in' to the organs? - ANS = Intrinsic mechanisms. What type of homeostatic regulatory mechanisms are the endocrine and nervous systems considered? - ANS = Extrinsic mechanisms. When blood glucose levels rise, what role do pancreatic islets serve in the feedback loop? - ANS = They act as the integrating center. What detects a decrease in mean arterial pressure? - ANS = A sensor.