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HSC 308 E2
Exam 2
| Question | Answer |
|---|---|
| Direct Calorimetry | heat produced during metabolic processes is measured directly |
| Indirect Calorimetry | by measuring VO2 we get an indirect estimate of energy expenditure |
| Respiratory Quotient (RQ) | ratio of CO2 produced to O2 consumed CO2/O2 - .70-1.00 |
| Respiratory Exchange Ratio (RER) | measuring expired air from the lungs can be above or below .70-1.00 |
| Resting Metabolic Rate (RMR) | amount of energy required to maintain bodily functions during rest |
| Resting Daily Energy Expenditure (RDEE) | the amount of energy you expend daily at rest - 60-75% of TDEE |
| Metabolic Equivalent (MET) | used to measure or identify levels of activity |
| Thermic Effect of Food (TEF) | represents the energy required to digest, absorb, and assimilate nutrients |
| Insensible Water Loss | water lost as water vapor |
| Ventilation | the movement of air into and out of the lungs |
| Anatomic Dead Space | inspired air that does not reach the respiratory division (150-200ml) |
| Conducting Division | Functions to conduct air to the alveoli, as well as warm, humidify, and filter the air |
| Respiratory Division | Function is gas exchange in the smaller bronchioles and alveoli |
| Tidal Volume (TV) | the amount of air inspired and expired during normal breathing (0.4-1L) |
| Forced Vital Capacity (FVC) | the amount of air inspired and expired during maximal breathing (3-5L) |
| Residual Volume (RV) | the amount of air left in the lungs even after forced expiration (1-1.5L) |
| Total Lung Capacity | the amount of gas contained in the lungs at the end of a maximal inhalation VC + RV |
| FEV 1.0 | Percentage of the FVC expired in one second normal = 85% <70% = COPD |
| Maximum Voluntary Ventilation (MVV) | maximum volume of air inspired in one minute normal = 80-180ml |
| Minute Ventilation (VE) | the amount of air breathed in one minute |
| Pulmonary Diffusion | the exchange of gasses between the air and blood |
| Bohr Effect | increases in temperature and acidity cause the oxyhemoglobin dissociation curve to shift down and to the right |
| Ventilatory Equivalent | ratio of minute ventilation to oxygen consumption VE/VO2 |
| Ventilatory Threshold | during high intensity exercise, minute ventilation increases disproportionately to the increase in VO2 ventilatory equivalent>30 |
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