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physiology wk 7-13
| Question | Answer |
|---|---|
| The fastest nerve fibers in the body can conduct an impulse that is how much faster than the slowest fibers in the body? | Almost 500 times faster, |
| Which of the following is true about pain receptors? | Alpha fibers are associated with sharp localized pain. |
| Memory cells: | Become plasma cells when exposed to an antigen. |
| The functions of the lymph nodes are | defense and heamatopoiesis |
| Which of the following is a powerful poison that acts directly on any cell and quickly kills it? | lymphotoxin |
| The ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is called | adaptive immunity |
| Complement can best be described as an | enzyme in blood |
| ciliated cells lining the respiratory tract | help move the mucus blanket towards the pharynx |
| Which of the following combinations in arterial blood could cause an increase in the respiratory rate | increased PC02 decreased arterial pressure decreased pH and decreased PO2 |
| External respiration can be defined as | the exchange of gases between the lung and the blood capillaries in the lung and pulmonary ventilation |
Created by:
samir3688
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