1432cv2 - level-breathing pure O 2 is insignificant – Hb...

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2 Cardio Respiratory 2 Gas Exchange and Transport • Diffusion - random motion from high to low [ ] • Hemoglobin(Hb) - iron containing protein in red blood cells that reversibly binds O 2 – Oxy-hemoglobin • Men have slightly higher Hb content – M - 15.5 ; W - 13.5 g / 100ml blood • Hb is nearly 100% saturated with oxygen at sea
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Unformatted text preview: level -breathing pure O 2 is insignificant – Hb content of blood determines its O 2 carrying capacity -and delivery of O 2 to working muscle – Cigarettes - carbon monoxide - binds Hb - higher affinity than O 2 – blood doping - re-infuse rbc – EPO - hormone for rbc production...
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