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Physiology2
Study for fianl
| Question | Answer |
|---|---|
| A hematocrit of 56% would be an indication of: | polycythemia |
| The chemoreceptors in the carotid bodies are particularly sensitive to: | hypercapnia |
| The term used to describe the collection of mechanisms that influence the circulation of blood is: | hemodynamics |
| The mechanisms of which three hormones work together to regulate blood volume? | aldosterone, ANH, and ADH |
| Molecules formed by the reactions of the complement cascade assemble themselves on the enemy cell’s surface, which results in | cytolisis |
| Which of the following is a powerful poison that acts directly on any cell and quickly kills it? | lymphotoxin |
| Chemotaxis is the process by which a cell navigates toward the source of the chemotactic factor by way of | detecting and then moving toward higher concentrations of the factor. |
| By the time the blood leaves the lung capillaries to return to the heart, what percentage of the blood’s hemoglobin has united with oxygen? | 97% |
| External respiration can be defined as: | the exchange of gases between the lung and the blood capillaries in the lung. pulmonary ventilation. |
| The PCO2 in alveolar air is _____ blood. | less than in the systemic venous equal to the systemic arterial |
| Which of the following would you expect to happen to cellular respiration during exercise? | Increased cellular respiration occurs during exercise, causing a rise in plasma PCO2, which is detected by central chemoreceptors in the brain and perhaps peripheral chemoreceptors in the carotid sinus and aorta to cause an increase in respiration rate. |
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Valeriea9848