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Ex Phys Ch. 14
Ch. 14 (Quiz 3)
Question | Answer |
---|---|
carotid bodies | monitor the state of arterial blood just before it perfuses the brain |
neurogenic factors for ventilatory control: | 1)cortical influence2)peripheral influence(pg. 297) |
ventilatory equivalent | the ratio of minute ventilation to oxygen consumption |
ventilatory threshold | the point at which pulmonary ventilation increases disproportionately with oxygen consumption during graded exercise |
lactate threshold | the highest oxygen consumption or exercise intensity achieved with less than a 1.0 mM increase in blood lactate concentration above the preexercise level |
onset of blood lactate accumulation (OBLA) | when blood lactate concentration systematically increases to 4.0 mM |
2 factors that influence endurance performance in a specific exercise mode: | 1)maximum capacity to consume oxygen (VO2max)2)maximum level for steady rate exercise (OBLA) |
exercise-induced arterial hypoxemia (EIH) | when the potential for inequality in alveolar ventilation relative to pulmonary capillary blood flow during high-intensity exercise may compromise arterial saturation and oxygen transport capacity (pg. 307) |
bicarbonate buffer | consists of the weak acid, CARBONIC ACID and its salt, SODIUM BICARBONATE |
alkaline reserve | buffer reserve |