# Anatomy and Physiology II Ch. 23 - Part 5

### 19 terms by typestereo

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### Tidal volume

Amount of air inhaled or exhaled during normal breathing; approx 500mL

### Inspiratory reserve volume

Maximum amount of air inhaled after a normal inhalation; approx. 3100mL

### Expiratory reserve volume

Maximum amount of air exhaled after a normal exhalation; approx 1,200mL

### Residual volume

The amount of air that remains in the lung after you forcibly exhale

### Minimal volume

The amount of air in the lungs after they've collapsed; approx. 100ml

### Vital capacity

Maximum amount of air you can exhale after a maximum inhalation; tidal volume + IRV + ERV = 4800mL

### Inspiratory capacity

Maximum amount of air that one can inhale; tidal volume + IRV = 3600mL

### Functional residual capacity

Amount of air left in lungs after normal exhalation; residual volume + ERV = 2400ml

### Total lung capacity

The total of all respiratory capacities; approx 6000mL/6L per minute

### Dalton's law

Law stating that in a mixture of gases, the total pressure is the sum of the pressure of each of its individual components; explains the process of simple diffusion of gases in the lungs and tissue; partial pressure determines rate of diffusion for O2 and CO2; all gasses move from greater to lesser pressure

### External respiration

Exchange of O2 and CO2 between alveoli and the blood in the pulmonary capillaries; factors that make external respiration efficient: thin and large surface area of alveolar membranes, extensive branching of pulmonary capillaries, pressure gradient across the membrane, and short distance during exchange

### Tuberculosis

Disease that affects external respiration due the thickening of alveoli; caused by a bacteria which causes a fibrous thickening of the wall

### Emphysema

Disease caused by smoking where the alveolar walls burst, thus complicating the process of external respiration (gas exchange)

### Internal respiration

Gas exchange between oxygenated blood and all of the body tissues

### Henry's law

Law stating that the ability of a gas to dissolve in a solution depends on its partial pressure and its solubility coefficient; explains how gases are carried in the blood

### Solubility coefficient

Measurement of how easily gases dissolve in solutions; higher partial pressure and greater SC - will dissolve if numbers are high

### O2 and CO2

Have a low solubility coefficient and is thus hard to dissolve into blood

### Hyperbaria

Any environment where you have more of any amount of oxygen; forces more than normal amount of O2 into blood

### Hyperbaric chamber

Treatment for patients who are deprived of O2

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