HMKN 191 lab Exam 2 Questions With Correct Answers
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Course
HMKN 191
Institution
HMKN 191
HMKN 191 lab Exam 2 Questions With
Correct Answers
Pulmonary ventilation - answermovement of air b/w the atmosphere and the lungs that occurs
when we inhale and exhale
external respiration - answermovement of oxygen from alveoli into pulmonary capillaries and
co2 from pulmonary capillaries to ...
HMKN 191 lab Exam 2 Questions With
Correct Answers
Pulmonary ventilation - answer✔movement of air b/w the atmosphere and the lungs that occurs
when we inhale and exhale
external respiration - answer✔movement of oxygen from alveoli into pulmonary capillaries and
co2 from pulmonary capillaries to alveoli
internal respiration - answer✔movement of oxygen from capillaries into body cells and co2 from
body cells into capillaties
boyle's law - answer✔the pressure of gas in an enclosed container is inversely proportional to the
volume of the container
what happens when lung volume increases? (boyle's law) - answer✔the pressure inside decreases
and the air flows in lungs
normal inhalation is caused by - answer✔contraction of the diaphragm
normal exhalation - answer✔passive process involving relaxation of the diaphragm and elastic
recoil of lungs
lengths of thoracic cavity in inhalation and exhalation - answer✔increases with inhalation,
decreases with exhalation
what happens to the parietal pleura as the thorax expands? - answer✔is it pulled outward
what happens when the pleural cavity slightly increases in volume? - answer✔decrease in
intrapleural pressure (pressure between internal layers)
when the air leaves lungs what happens to thorax, interpleural and alveolar pressure and lungs? -
answer✔thorax decreases length, lungs recoil, interpleural an alveolar pressure increases
co2 formed - answer✔during aerobic cellular respiration and diffuses out of cells into interstitial
fluid and into blood stream
what is co2 in blood stream called - answer✔bicarbonate ions
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