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RESPIRATORY SYSTEM PART IV NOVEMBER 3
RESPIRATORY SYSTEMPART IVNOVEMBER 3
AGENDA
● QUIZ● QUESTIONS● VIDEO● NOTES
QUIZ
QUESTIONS
FOCUSED BREATHING
NOTES
Transport and Diffusion of Gases
Air we breathe = mixture of gases
● Oxygen = 20.9%● Carbon dioxide = 0.0391%
PARTIAL PRESSURE
PARTIAL PRESSURE
OXYGEN TRANSPORT AND DIFFUSION
Transported through the blood in 2 different ways
1. 1.5% - dissolved in the plasma2. 98.5% - attached to Hb to form oxyhemoglobin
OXYGEN TRANSPORT AND DIFFUSION
Hemoglobin
ERYTHROCYTES
Hemoglobin HemeRBC
● 4 irons/Hb → 250 million Hb/RBC → 1 billion O2/RBC● 98.5% O2 devliered via Hb
CARBON TRANSPORT AND DIFFUSION
Transported through the blood in 3 different ways
1. 7% - dissolved in the plasma2. 20% - attached to Hb to form carbaminohemoglobin3. 73% - reacts with water in the plasma → carbonic acid
CARBON TRANSPORT AND DIFFUSION
