BIOL 141 EXAM 3 PSU ZEMAN QUESTIONS WITH VERIFIED ANSWERS GRADED A+
three process of respiration - Answers pulmonary ventilation
gas diffusion
gas transfer
pulmonary ventilation - Answers physical movement of air into lungs
gas diffusion - Answers across the respiratory membrane
gas transport - Answers to tissues in the body
2 parts of respiratory tract - Answers conduction and respiratory portion
Conducting Portion - Answers site of ventilation (movement of air), nose to bronchioles
Respiratory Portion - Answers Site of respiration (exchanging CO2 and O2... bronchioles and
alveoli
Three pressures of ventialtion - Answers intrapleural pressure
atmospheric pressure
intrapulmonary pressure
intrapleural pressure - Answers pressure between membranes
atmospheric pressure - Answers air pressure outside the body
intrapulmonary pressure - Answers air pressure in lungs
Boyle's Law - Answers pressure and volume are inversely related " The pressure of a given
quantity of gas is inversely proportional to its volume (like blood in the heart, only applied to a
gas instead of a liquid)
Gas moved from high pressure to low pressure that goes for our body too
gradients of pressure cause air movement within our lungs
Pleura - Answers membrane that encases the pleural cavity
visceral pleura - Answers membrane that wraps the lungs
parietal pleura - Answers membrane that wraps the body wall
, inhalation - Answers more volume less pressure, air flows in
pressure inside falls so air moves in
diaphragm contracts and lowers
rib muscles contract and expand
exhalation - Answers less volume, more pressure, air goes out
diaphragm relaxes and moves up and the rib muscles relax
f - Answers respiratory rate (avg-15)
Vt - Answers amount of gas inhaled during one breath (avg-500 ml)
Ve - Answers Respiratory minute volume
Ve= f *Vt
(7500mL = 15*500 ml)
7500mL= 7.5 Liters/min - Answers (7500mL = 15*500 ml)
7500mL= 7.5 Liters/min
Va - Answers alveolar ventilation
-air at the alveolar respiratory membrane per minute
-subtract air from trachea ad major bronchi not involved in exchange (anatomic dead space, Vd
is a constant) from tidal volume
Va=f*(Vt-Vd)= Rate x (Tidal Vol-Dead Space
Va=15(500-150)
three process of respiration - Answers pulmonary ventilation
gas diffusion
gas transfer
pulmonary ventilation - Answers physical movement of air into lungs
gas diffusion - Answers across the respiratory membrane
gas transport - Answers to tissues in the body
2 parts of respiratory tract - Answers conduction and respiratory portion
Conducting Portion - Answers site of ventilation (movement of air), nose to bronchioles
Respiratory Portion - Answers Site of respiration (exchanging CO2 and O2... bronchioles and
alveoli
Three pressures of ventialtion - Answers intrapleural pressure
atmospheric pressure
intrapulmonary pressure
intrapleural pressure - Answers pressure between membranes
atmospheric pressure - Answers air pressure outside the body
intrapulmonary pressure - Answers air pressure in lungs
Boyle's Law - Answers pressure and volume are inversely related " The pressure of a given
quantity of gas is inversely proportional to its volume (like blood in the heart, only applied to a
gas instead of a liquid)
Gas moved from high pressure to low pressure that goes for our body too
gradients of pressure cause air movement within our lungs
Pleura - Answers membrane that encases the pleural cavity
visceral pleura - Answers membrane that wraps the lungs
parietal pleura - Answers membrane that wraps the body wall
, inhalation - Answers more volume less pressure, air flows in
pressure inside falls so air moves in
diaphragm contracts and lowers
rib muscles contract and expand
exhalation - Answers less volume, more pressure, air goes out
diaphragm relaxes and moves up and the rib muscles relax
f - Answers respiratory rate (avg-15)
Vt - Answers amount of gas inhaled during one breath (avg-500 ml)
Ve - Answers Respiratory minute volume
Ve= f *Vt
(7500mL = 15*500 ml)
7500mL= 7.5 Liters/min - Answers (7500mL = 15*500 ml)
7500mL= 7.5 Liters/min
Va - Answers alveolar ventilation
-air at the alveolar respiratory membrane per minute
-subtract air from trachea ad major bronchi not involved in exchange (anatomic dead space, Vd
is a constant) from tidal volume
Va=f*(Vt-Vd)= Rate x (Tidal Vol-Dead Space
Va=15(500-150)
