Transcript text: Percentage $\mathrm{O}_{2}$ saturation of hemoglobin
Solution
Solution Steps
Step 1: Identify the Question
The question asks about the oxygen load delivered to the systemic tissues based on the given graph.
Step 2: Analyze the Graph
The graph shows the relationship between the partial pressure of O₂ (Po₂) in mm Hg and the percentage of O₂ saturation of hemoglobin. It also indicates the amount of O₂ in mL per dL of blood.
Step 3: Determine the Oxygen Delivery
To determine the oxygen load delivered to the systemic tissues, observe the difference in O₂ saturation between the alveoli and systemic tissues. The alveoli typically have a higher Po₂, leading to higher O₂ saturation, while systemic tissues have a lower Po₂, leading to lower O₂ saturation.
Final Answer
According to the graph, hemoglobin delivers about 5 mL of its oxygen load to the systemic tissues.