Oxygen Consumption Increases with Exercise Due to the Fact That

question 10

Essay

Oxygen consumption increases with exercise due to the fact that the contracting muscles are doing work and require ATP to produce the contractions.
A) How does the body meet the increased demand for oxygen?
B) Calculate the oxygen consumption of a runner using the following information:
Heart Rate: 130 bpm; Stroke Volume: 270 mL/beat;
Arterial oxygen content: 250 mL O₂/L blood,

• A) How does the body meet the increased demand for oxygen?
• B) Calculate the oxygen consumption of a runner using the following information:
• Heart Rate: 130 bpm; Stroke Volume: 270 mL/beat;
• Arterial oxygen content: 250 mL O₂/L blood,

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Definitions:

Atria

The upper chambers of the heart.

Inferior Vena Cava

The large vein that carries deoxygenated blood from the lower half of the body into the heart.

Right Atrium

The right upper chamber of the heart that receives deoxygenated blood from the body through the venae cavae and pumps it into the right ventricle.

Systole

The phase of the heart cycle during which the heart muscles contract and pump blood into the arteries.