Plot blood pressure against time for one cardiac cycle in humans, drawing separate lines for the pressure in the aorta, the left
1 answer:
The expansion of the aorta causes a rise in blood volume and blood pressure.
<h3>What is the cardiac cycle?</h3>Heartbeat pattern The cardiac cycle includes all of the physiological processes connected to a single pulse, including the electrical, muscular (pressures and volumes), sensory, and other activities. During each cardiac cycle, both ventricles and atria beat alternately.
<h3>Briefing:</h3>The human heart's cardiac cycle includes two phases: ventricular relaxation and atrial contraction. The right ventricle has low pressure when the right ventricular systolic pressure is frequently less than 30 mm Hg. The left ventricle has a thicker wall and more muscle mass than the right ventricle as a result of the blood flowing at a high pressure. The expansion of the aorta causes a rise in blood volume and blood pressure.
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The experiment to help Lillian's parents will consist of planting various carrots using both kinds of fertilizers, and maintaining a constant carrot type, amount of light, and amount of water throughout each plant.
In order to perform an accurate experiment, we need to identify three kinds of variables:
- Independent variable
- Dependent variable
- Control variable
In an experiment, the Independent variable is one <u>whose value does not depend on the others</u>. What this means is that this variable will not react to changes that occur in others. In this experiment, the independent variable is the fertilizer, given that it is not affected by the species of carrot, type of soil, or any other variable present.
The dependent variable in an experiment is just the opposite, it is, as the name implies, a variable whose value depends on the other variables present. In an experiment, this variable represents the data that we seek to measure. For this experiment, the dependent variable is the growth rate of the carrots because it is affected by the amount of water, light, and type of fertilizer we use, as well as being what we wish to measure.
Finally, the last variable we must identify is that of the control variable, also known as the constant or standardized variable. This variable is of vital importance for the accuracy of any experiment. This variable corresponds to those <u>factors which we maintain constant through each trial in the experiment,</u> for the example above, <em>it is the amount of </em><em>water </em><em>and </em><em>light</em><em>, as well as the </em><em>type </em><em>of </em><em>carrot</em>, Lillian's parents will use.
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