Organization of Respiratory System; Gas Laws-Lecture-1a

Organization of Respiratory System; Gas Laws-Lecture-1a -...

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Respiration Dr. Daniel Swartz Office: 227 Sherman Hall Phone: 829-2536 E-Mail: swartzda@buffalo.edu Exam: October 13, 2008
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Expected: Read and know all material in CHAPTERS 17 and 18 . I will identify equations that you need to MEMORIZE . Do NOT be rude and inconsiderate during lectures. You will be responsible for ALL material if we cover it or not. I will ask if you have QUESTIONS , make appointment If you have additional questions. I will Identify KEY POINTS .
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Organization of Respiratory System – Gas Laws
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Figure 17-1 Four integrated processes: 1) Ventilation (breathing) - Inspiration - expiration 2) Exchange of O 2 and CO 2 between lungs and the blood. 3) Transport of O 2 and CO 2 in the blood. 4) Exchange of gases between blood and cells. Overview of Respiration
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Figure 17-2a Respiration Anatomy
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Figure 17-2b Thoracic Cage – bones and muscles (Skeletal muscle)
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Figure 17-2c
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Figure 17-2d Pleural Fluid = 3.0ml - Slippery surface - Holds lungs tight against thoracic wall (cohesiveness of water)
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Figure 17-3
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Figure 17-2 – Overview (1 of 2)
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Figure 17-2e Collapsible Airway
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Unformatted text preview: -Bronchioles-Respiratory Bronchioles -Alveoli Figure 17-4 Air Flow Velocity Decreases Figure 17-2f Cover 80-90% of alveolar surface Figure 17-2g Figure 17-2h Vascular Smooth Muscle Cells (VSMC) Type I Epithelial Cells - Covers 80 - 90% of alveoli Figure 17-2 Overview (2 of 2) Pulmonary Blood Flow Pulmonary blood volume = 0.5L (10% total) Pulmonary capillary volume = 75 mL Pulmonary blood pressure = 25/8 mmHg Congestive Heart Failure (CHF) Poor Left Ventricular Heart Function Blood pools in pulmonary circulation Increase pulmonary pressure Pulmonary edema (Interstitial fluid) Shortness of breath and blood in phlegm Table 17-1 Table 17-2 Partial Pressure of Gas Daltons Law Partial pressure of a gas = P atm X % of gas in atmosphere. Partial pressure of oxygen = 760 mmHg X 21%. Po 2 = 760 X 0.21 = 160 mmHg. Boyles Law P 1 V 1 = P 2 V 2 100mmHg X 1.0 L = 200mmHg X 0.5 L Figure 17-5...
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This note was uploaded on 10/02/2008 for the course PGY 300 taught by Professor Krasney during the Fall '05 term at SUNY Buffalo.

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Organization of Respiratory System; Gas Laws-Lecture-1a -...

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