2/13/25, 5:31 PM WCU PHYS 261 Final Exam | Questions and Answers | Latest Version | Already Passed | (West Coast University) Flashcards | Qui…
WCU PHYS 261 Final Exam | Questions and
Answers | Latest Version | Already Passed | (West
Coast University)
Save
Terms in this set (102)
What are the 2 types of internal respiration and external respiration
respiration?
In which direction does air from a high area to a low area
flow due to pressure
differences?
What is internal Gas exchange that occurs between the aleveoli and
respiration? RBCs, and between the RBCs and tissue
What is external air movement between the lungs and the atmosphere
respiration?
What is inhalation? when air moves from the atmosphere into the lungs
What is exhalation? when air moves from the lungs into the atmosphere
What is Boyle's Law? that pressure and volume are inversely proportional
What is the atmospheric 760 mmHg
pressure at sea level?
What is intrapulmonary pressure inside the lungs
pressure?
What is intrapulmonary volume inside the lungs
volume?
https://quizlet.com/1005589283/wcu-phys-261-final-exam-questions-and-answers-latest-version-already-passed-west-coast-university-flash-cards/?new 1/13
, 2/13/25, 5:31 PM WCU PHYS 261 Final Exam | Questions and Answers | Latest Version | Already Passed | (West Coast University) Flashcards | Qui…
What is the atmospheric 760mmHg
pressure and
intrapulmonary pressure
when you are at rest?
(neither inhaling or
exhaling)
What is the lung volume 400ml air
during rest?
For inspiration, is the lower
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
What are the steps of respiratory muscles
inspiration? -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
Central receptors
-located near the medulla
-detect hydrogen concentration in CSF and by
What are the 2 types of
detecting hydrogen, it can tell if CO2 has increased
chemoreceptors and their
Peripheral receptors
functions?
-found in carotid artery and aortic bodies
-detects a decrease in O2 levels, and if decreased, it
stimulates the medulla
https://quizlet.com/1005589283/wcu-phys-261-final-exam-questions-and-answers-latest-version-already-passed-west-coast-university-flash-cards/?new 2/13
WCU PHYS 261 Final Exam | Questions and
Answers | Latest Version | Already Passed | (West
Coast University)
Save
Terms in this set (102)
What are the 2 types of internal respiration and external respiration
respiration?
In which direction does air from a high area to a low area
flow due to pressure
differences?
What is internal Gas exchange that occurs between the aleveoli and
respiration? RBCs, and between the RBCs and tissue
What is external air movement between the lungs and the atmosphere
respiration?
What is inhalation? when air moves from the atmosphere into the lungs
What is exhalation? when air moves from the lungs into the atmosphere
What is Boyle's Law? that pressure and volume are inversely proportional
What is the atmospheric 760 mmHg
pressure at sea level?
What is intrapulmonary pressure inside the lungs
pressure?
What is intrapulmonary volume inside the lungs
volume?
https://quizlet.com/1005589283/wcu-phys-261-final-exam-questions-and-answers-latest-version-already-passed-west-coast-university-flash-cards/?new 1/13
, 2/13/25, 5:31 PM WCU PHYS 261 Final Exam | Questions and Answers | Latest Version | Already Passed | (West Coast University) Flashcards | Qui…
What is the atmospheric 760mmHg
pressure and
intrapulmonary pressure
when you are at rest?
(neither inhaling or
exhaling)
What is the lung volume 400ml air
during rest?
For inspiration, is the lower
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
What are the steps of respiratory muscles
inspiration? -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
Central receptors
-located near the medulla
-detect hydrogen concentration in CSF and by
What are the 2 types of
detecting hydrogen, it can tell if CO2 has increased
chemoreceptors and their
Peripheral receptors
functions?
-found in carotid artery and aortic bodies
-detects a decrease in O2 levels, and if decreased, it
stimulates the medulla
https://quizlet.com/1005589283/wcu-phys-261-final-exam-questions-and-answers-latest-version-already-passed-west-coast-university-flash-cards/?new 2/13
