BIOL 141 EXAM 3 PSU ZEMAN
QUESTIONS AND ANSWERS
three process of respiration - Correct Answers -pulmonary ventilation
gas diffusion
gas transfer
pulmonary ventilation - Correct Answers -physical movement of air into lungs
gas diffusion - Correct Answers -across the respiratory membrane
gas transport - Correct Answers -to tissues in the body
2 parts of respiratory tract - Correct Answers -conduction and respiratory portion
Conducting Portion - Correct Answers -site of ventilation (movement of air), nose to
bronchioles
Respiratory Portion - Correct Answers -Site of respiration (exchanging CO2 and O2...
bronchioles and alveoli
Three pressures of ventialtion - Correct Answers -intrapleural pressure
atmospheric pressure
intrapulmonary pressure
respiratory membrane - Correct Answers -alveolus and capillary
job is to separate the air and capillaries
gas transport in red blood cells - Correct Answers -Oxygen is transported directly by red
blood cells
-Blood= blood cells and plasma
-O2 binds to hemoglobin- protein found in RBC
-Hemoglobin unloads oxygen down a concentration gradient in tissues where oxygen
levels are lowered
ventilation formular - Correct Answers -breaths per minute multiplied by alveolar lung
volume
intrapleural pressure - Correct Answers -pressure between membranes
, atmospheric pressure - Correct Answers -air pressure outside the body
intrapulmonary pressure - Correct Answers -air pressure in lungs
Boyle's Law - Correct 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 - Correct Answers -membrane that encases the pleural cavity
visceral pleura - Correct Answers -membrane that wraps the lungs
parietal pleura - Correct Answers -membrane that wraps the body wall
inhalation - Correct 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 - Correct Answers -less volume, more pressure, air goes out
diaphragm relaxes and moves up and the rib muscles relax
f - Correct Answers -respiratory rate (avg-15)
Vt - Correct Answers -amount of gas inhaled during one breath (avg-500 ml)
Ve - Correct Answers -Respiratory minute volume
Ve= f *Vt
(7500mL = 15*500 ml)
7500mL= 7.5 Liters/min - Correct Answers -(7500mL = 15*500 ml)
7500mL= 7.5 Liters/min
Va - Correct Answers -alveolar ventilation
-air at the alveolar respiratory membrane per minute
QUESTIONS AND ANSWERS
three process of respiration - Correct Answers -pulmonary ventilation
gas diffusion
gas transfer
pulmonary ventilation - Correct Answers -physical movement of air into lungs
gas diffusion - Correct Answers -across the respiratory membrane
gas transport - Correct Answers -to tissues in the body
2 parts of respiratory tract - Correct Answers -conduction and respiratory portion
Conducting Portion - Correct Answers -site of ventilation (movement of air), nose to
bronchioles
Respiratory Portion - Correct Answers -Site of respiration (exchanging CO2 and O2...
bronchioles and alveoli
Three pressures of ventialtion - Correct Answers -intrapleural pressure
atmospheric pressure
intrapulmonary pressure
respiratory membrane - Correct Answers -alveolus and capillary
job is to separate the air and capillaries
gas transport in red blood cells - Correct Answers -Oxygen is transported directly by red
blood cells
-Blood= blood cells and plasma
-O2 binds to hemoglobin- protein found in RBC
-Hemoglobin unloads oxygen down a concentration gradient in tissues where oxygen
levels are lowered
ventilation formular - Correct Answers -breaths per minute multiplied by alveolar lung
volume
intrapleural pressure - Correct Answers -pressure between membranes
, atmospheric pressure - Correct Answers -air pressure outside the body
intrapulmonary pressure - Correct Answers -air pressure in lungs
Boyle's Law - Correct 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 - Correct Answers -membrane that encases the pleural cavity
visceral pleura - Correct Answers -membrane that wraps the lungs
parietal pleura - Correct Answers -membrane that wraps the body wall
inhalation - Correct 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 - Correct Answers -less volume, more pressure, air goes out
diaphragm relaxes and moves up and the rib muscles relax
f - Correct Answers -respiratory rate (avg-15)
Vt - Correct Answers -amount of gas inhaled during one breath (avg-500 ml)
Ve - Correct Answers -Respiratory minute volume
Ve= f *Vt
(7500mL = 15*500 ml)
7500mL= 7.5 Liters/min - Correct Answers -(7500mL = 15*500 ml)
7500mL= 7.5 Liters/min
Va - Correct Answers -alveolar ventilation
-air at the alveolar respiratory membrane per minute
