Problem:
For this procedure we tested are heart rate to see how it changed depending on what level activity we did. Heart rate is when the heart contracts because it is pumping the oxygenated blood through the aorta. Then the blood goes through your heart through the vena cava. Once you start moving the blood go through the capillaries to your lungs, legs, head and arms the blood flows through the inferior and superior capillaries. The part of the heart blood that that keeps the blood from flowing backwards would be the valves.
Hypothesis: I hypothesize that if the faster and more often we move our muscles the higher our heart rate would be. Then, when you move your muscle they need blood the more blood is pumping to make a faster heart
For this procedure we tested are heart rate to see how it changed depending on what level activity we did. Heart rate is when the heart contracts because it is pumping the oxygenated blood through the aorta. Then the blood goes through your heart through the vena cava. Once you start moving the blood go through the capillaries to your lungs, legs, head and arms the blood flows through the inferior and superior capillaries. The part of the heart blood that that keeps the blood from flowing backwards would be the valves.
Hypothesis: I hypothesize that if the faster and more often we move our muscles the higher our heart rate would be. Then, when you move your muscle they need blood the more blood is pumping to make a faster heart