Today we reviewed how to do your lab and the histograms involved. Below is a video explaining histograms. While we've not done "frequency tables" it might be helpful for you to make one (or several) when you revisit your lab.
We also finished our loop around the circulatory system.
From the Aorta we move to the systemic arteries to systemic arterioles (even smaller) to systemic capillaries (this is where what happens?). Capillaries are very small and numerous so they can reach every cell and gas exchange can occur.
In Systemic Capillaries, what then moves into the blood from cells? Blood then flows into venuoles (small veins) then into veins (lower pressure than arteries, thinner, less muscle) then into the largest veins (the Inferior or Superior Vena Cava - what is the difference?). From the vena cava, blood (is it deoxgenated still?) moves into the Right Atrium ( small, some muscle), contracts to move blood through a valve (what does the valve do?) and along with gravity moves blood into the Right Ventricle (larger, Very muscular, but still less than the Left Ventricle). The Right ventricle pumps deoxgenated blood into the Pulmonary Arteries (why arteries?) into the lungs (via p. arterioles -> p. capillaries) where gas exchange occurs. What gases move in what direction? This blood then moves into the Pulmonary Veins (why veins?) and then into the Left Atrium (small, low amounts of muscle) which sends blood (what kind?) through a valve into the Left Ventricle. And now we are back where we started!
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