In the two divisions of the respiratory tract, this is the site of oxygen diffusion
What is lower RT
100
This is the membrane that oxygen diffuses across
What is AC membrane
100
This is the point where the trachea divides into right and left primary bronchi
What is Carina
100
Exhalation begins when this muscle relaxes
What is diaphragm
100
If you were to take 10 breaths/min and inhaled about 600 mL/breath and oxygen in the air was 20% this would be your minute ventilation of oxygen
What is 1200mL/min
200
This is the law that states that a higher partial pressure of a gas will lead to more diffusion across a gas-liquid membrane
What is Henrys law
200
This cell type forms the exchange surfaces of the alveolus
What is simple squamous
200
This is the conducting airways with the air that does not undergo respiratory exchange
What is anatomic dead space
200
An increase in this will affect alveolar surface tension to cause decreased pulmonary ventilation, but will have no effect on lung compliance
What is surfactant
200
This is one of the factors that move the oxygen-Hb saturation curve to the left
What is high pO2, low temperature, low pCO2, Low H+, High, pH
300
This is the dominant method of carbon dioxide transport in the blood
What is as bicarb not bound to Hb
300
This is the pressure in the alveoli after inspiration in mmHg
What is 760mmHg
300
This is the rhythmicity center for respiration
What is Medulla
300
movine in this direction between sea level and the top of a mountain would increase the partial pressure of oxygen
What is mountain to sea
300
This is the percent of oxygen in air at sea level
What is 21%
400
As the pressure of this gas increases, more of it makes its way across the AC membrane despite its low solubility and can lead to the bends
What is N
400
These are the smallest bronchioles prior to reaching the alveoli
What is terminal brochiole
400
These are the arteries that carry oxygenated blood to the lungs
What is brochial
400
All of the following factors will affect the rate of pulmonary and systemic gas exchange EXCEPT
external air temperature
partial pressure difference of the gases
surface area available for gas exchange
diffusion distance
molecular weight and solubility of the gases
What is temperature
400
This is the process to measure volumes of air during inspiration, expiration and residually.
What is spirometry
500
This is the SaO2 of the blood in the pulmonary arteries prior to oxygenation in a physiologically healthy person
What is 75%
500
These cells secrete surfactant
What is Type II alveolar cells
500
This fissure is missing in the left lung
What is the horizontal fissure
500
This is the law that the partial pressure of each gas is proportional to the percentage of that gas in a gas solution
What is Dalton's
500
Moving the O-Hb saturation curve to the left leads to this effect on individual HB rings