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Exam (elaborations)

Biol 141 Exam 3 PSU Zeman Questions And Answers

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Biol 141 Exam 3 PSU Zeman Questions And Answers

Institution
Biol 141
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Biol 141










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Institution
Biol 141
Course
Biol 141

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Uploaded on
October 12, 2025
Number of pages
16
Written in
2025/2026
Type
Exam (elaborations)
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Questions & answers

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Biol 141 Exam 3 PSU Zeman Questions
And Answers


three process of respiration-correct-answer-pulmonary ventilation
gas diffusion
gas transfer




pulmonary ventilation-correct-answer-physical movement of air into lungs




gas diffusion-correct-answer-across the respiratory membrane




gas transport-correct-answer-to tissues in the body




2 parts of respiratory tract-correct-answer-conduction and respiratory portion




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

,2|Page




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




Three pressures of ventialtion-correct-answer-intrapleural pressure
atmospheric pressure
intrapulmonary pressure




intrapleural pressure-correct-answer-pressure between membranes




atmospheric pressure-correct-answer-air pressure outside the body




intrapulmonary pressure-correct-answer-air pressure in lungs




peripheral chemoreceptors-correct-answer-cells located in major ateries leaving
the heart
mostly monitor O2
when O2 drops, they increase action potentials

, 3|Page




inspiratory neurons-correct-answer-used in "quiet" and normal or forced
breathing


contraction of diaphragm and rib muscles --- inhalation




expiratory neurons-correct-answer-forced and active breathing
contraction of accessory ribs and abs-- forcing exhalation




heart rate rises-correct-answer-when too much co2




heart rate lowers-correct-answer-when too less of co2




proprioreceptors-correct-answer-Type of sensory receptor that monitors the
body's position in space.




baroreceptors-correct-answer-detect changes in blood pressure

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