BIOL 141 EXAM 3 PSU ZEMAN EXAM QUESTIONS WITH 100% CORRECT ANSWERS LATEST VERSION 2025/2026.

BIOL 141 EXAM 3 PSU ZEMAN EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS LATEST VERSION 2025/2026.




Three process of respiration - ANS pulmonary ventilation

gas diffusion

gas transfer



pulmonary ventilation - ANS physical movement of air into lungs



gas diffusion - ANS across the respiratory membrane



gas transport - ANS to tissues in the body



2 parts of respiratory tract - ANS conduction and respiratory portion



Conducting Portion - ANS site of ventilation (movement of air), nose to bronchioles



Respiratory Portion - ANS Site of respiration (exchanging CO2 and O2... bronchioles and
alveoli


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, Three pressures of ventialtion - ANS intrapleural pressure

atmospheric pressure

intrapulmonary pressure



intrapleural pressure - ANS pressure between membranes



atmospheric pressure - ANS air pressure outside the body



intrapulmonary pressure - ANS air pressure in lungs



Boyle's Law - ANS 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 - ANS membrane that encases the pleural cavity



visceral pleura - ANS membrane that wraps the lungs



parietal pleura - ANS membrane that wraps the body wall



inhalation - ANS more volume less pressure, air flows in

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