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Cardiovascular system - Essay Example

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Masters
Author : klockomyah
Essay
Biology
Pages 10 (2510 words)

Summary

Demonstrate the adaptability of the cardiovascular system to autoregulate to two different, stressful conditions (1. Max test 2. Steady state exercise at 65% maximum oxygen level).The cardiovascular system has the capabilities to adapt to a number of external factors. …

Extract of sample
Cardiovascular system

Demonstrate the adaptability of the cardiovascular system to autoregulate to two different, stressful conditions (1. Max test 2. Steady state exercise at 65% maximum oxygen level). Explain in detail how the different cardiovascular components such as heart rate, systolic blood pressure, diastolic blood pressure, total pulmonary resistance, stroke volume and blood flow, respond to these stressful conditions. Explain in detail the physiological mechanisms responsible for the changes observed.The cardiovascular system has the capabilities to adapt to a number of external factors. An example of the cardiovascular system’s ability to adapt is seen in response to a max test. This test measures the volume of oxygen in the blood that the body uses in one minute of maximal exercise. A stationary exercise machine is used when administering the test. The first-minute interval is done at a very easy level. As each minute passes the levels become increasingly more difficult until you reach a levels when you can no longer
continue. The max test requires you to wear a mask and to breathe through your mouth. The mask is connected to an analyzer that looks at the levels of carbon
dioxide and oxygen in the exhaled gas. You are also hooked up to a heart monitor. Using the information gathered you could figure out your cardiovascular
fitness and define your maximum aerobic power.The max test causes an increase in heart rate, because there is an increased need by your muscles for oxygenated blood

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