WCU PHYS 261 Final || A+ Verified Already.
internal respiration and external respiration correct answers What are the 2 types of respiration?
from a high area to a low area correct answers In which direction does air flow due to pressure
differences?
Gas exchange that occurs between the aleveoli and RBCs, and between the RBCs and tissue
correct answers What is internal respiration?
air movement between the lungs and the atmosphere correct answers What is external
respiration?
when air moves from the atmosphere into the lungs correct answers What is inhalation?
when air moves from the lungs into the atmosphere correct answers What is exhalation?
that pressure and volume are inversely proportional correct answers What is Boyle's Law?
760 mmHg correct answers What is the atmospheric pressure at sea level?
pressure inside the lungs correct answers What is intrapulmonary pressure?
volume inside the lungs correct answers What is intrapulmonary volume?
760mmHg correct answers What is the atmospheric pressure and intrapulmonary pressure when
you are at rest?(neither inhaling or exhaling)
, 400ml air correct answers What is the lung volume during rest?
lower correct answers For inspiration, is the intrapulmonary pressure higher or lower than the
atmospheric pressure?
-blood O2 levels are low, while CO2 is high
-chemoreceptors get stimulated
-chemoreceptors stimulate medulla(respiratory center)
-medulla stimulates the phrenic nerve
-phrenic nerve stimulates the diaphragm and respiratory muscles
-diaphragm and muscles move down and outward
-negative pressure created inside the lungs
-thoracic veins drain blood into the lungs
-increase in intrapulmonary volume
-decrease in intrapulmonary pressure by 4mmHg= 756mmHg
-air enters lungs correct answers What are the steps of inspiration?
Central receptors
-located near the medulla
-detect hydrogen concentration in CSF and by detecting hydrogen, it can tell if CO2 has
increased
Peripheral receptors
-found in carotid artery and aortic bodies
-detects a decrease in O2 levels, and if decreased, it stimulates the medulla correct answers What
are the 2 types of chemoreceptors and their functions?
-inhalation caused the lungs to be filled with air
-stimulates stretch receptors within the medulla
internal respiration and external respiration correct answers What are the 2 types of respiration?
from a high area to a low area correct answers In which direction does air flow due to pressure
differences?
Gas exchange that occurs between the aleveoli and RBCs, and between the RBCs and tissue
correct answers What is internal respiration?
air movement between the lungs and the atmosphere correct answers What is external
respiration?
when air moves from the atmosphere into the lungs correct answers What is inhalation?
when air moves from the lungs into the atmosphere correct answers What is exhalation?
that pressure and volume are inversely proportional correct answers What is Boyle's Law?
760 mmHg correct answers What is the atmospheric pressure at sea level?
pressure inside the lungs correct answers What is intrapulmonary pressure?
volume inside the lungs correct answers What is intrapulmonary volume?
760mmHg correct answers What is the atmospheric pressure and intrapulmonary pressure when
you are at rest?(neither inhaling or exhaling)
, 400ml air correct answers What is the lung volume during rest?
lower correct answers For inspiration, is the intrapulmonary pressure higher or lower than the
atmospheric pressure?
-blood O2 levels are low, while CO2 is high
-chemoreceptors get stimulated
-chemoreceptors stimulate medulla(respiratory center)
-medulla stimulates the phrenic nerve
-phrenic nerve stimulates the diaphragm and respiratory muscles
-diaphragm and muscles move down and outward
-negative pressure created inside the lungs
-thoracic veins drain blood into the lungs
-increase in intrapulmonary volume
-decrease in intrapulmonary pressure by 4mmHg= 756mmHg
-air enters lungs correct answers What are the steps of inspiration?
Central receptors
-located near the medulla
-detect hydrogen concentration in CSF and by detecting hydrogen, it can tell if CO2 has
increased
Peripheral receptors
-found in carotid artery and aortic bodies
-detects a decrease in O2 levels, and if decreased, it stimulates the medulla correct answers What
are the 2 types of chemoreceptors and their functions?
-inhalation caused the lungs to be filled with air
-stimulates stretch receptors within the medulla
