Unit 3 Reflection
Unit 3 was all about the circulatory system. It included the heart, cycle of blood through the heart, heart diseases, and a brief segment on the respiratory system. The cardiovascular system works flawlessly with a combination of the heart, vessels, and accessory organs such as the lungs, liver, and kidneys. Starting in the heart, blood comes in through the super/inferior vena cavas into the right atrium. It then flows through the tricuspid valve into the right ventricle, where it is pushed through the pulmonary semilunar value to the lungs. After going through the lungs, the blood returns through the pulmonary vein into the left atrium down to the left ventricle through the bicuspid (mitral) valve. From there it goes through the aortic semilunar valve, out through the aorta to the rest of the body.
Cardiovascular health is the health of the heart and the blood vessels. To promote cardiovascular health, one can exercise, eat right, and monitor their blood pressure and cholesterol levels. In the case that maintain a healthy lifestyle is not met, one can develop problems such as atherosclerosis, which could lead to heart attacks or strokes due to the blood clots in the vessels.
After this unit, I definitely am more informed about the circulatory system than I was before. I was surprised how much time we spent on the dysfunctions of the circulatory system because it never occurred to me how major the topic was. A little bit more time about the circulatory system functioning in there rest of the body might have added some helpful, additional information to the unit.
This unit went a lot smoother than the last one. The content was easier to understand than the last unit because this included more rote memorization. I feel that my strengths lie in my ability to memorize and apply that information to problems, which became particularly helpful with all the terms this unit. One weakness I have is how quickly that knowledge is applied to certain problems. Especially on calculations, which haven't popped up, my speed decreases often leading to time issues. However, this has yet to become a problem during this course.
My unit 2 health goals are still in progress, as they should be. I have been getting a tad bit more sleep due to the end of the band season, and I look forward to being able to start up my spring sport again. Also, I got through the first round of college applications, which has made the process a bit more relaxed than before. I hope that I will continue to improve on my sleep as well as my eating habits.
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| Our chalk diagram of the heart |
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| Sheep's heart dissection |
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| Taking a look into the sheep's right ventricle |
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