Trevor decided to analyze the evolution of the heart by creating a webpage using HTML, CSS, and JavaScript. Trevor includes a timeline of major events that lead to the development of the human heart. His project started with the tubular heart around 600 million years ago. The tubular heart is one of the first hearts to be developed and did not support unilateral flow. Next, the hagfish heart is one of the earliest vertebrate hearts and is a closed circulatory system with a portal vein that sends blood to the gills and the heart. Next, around 400 million years ago, dual circulation evolved, which improved blood oxygenation efficiency. This is when vertebrates began to move to the land and out of the water, and gills were no longer needed and the lungs started to develop. The reptile heart from 327 million years ago has two evolutionary paths: one with a three-chambered heart with a deviated blood flow, and another with a four-chambered heart, creating two aortas and two ventricles. Finally, it covers the mammalian heart 220 million years ago. This heart is known for its four chambers, dual circulation, and higher blood pressure for better oxygen and nutrient distribution. Deoxygenated blood pumps to the lungs to collect oxygen, then travels to the tissues and heart to provide them with oxygen and pumps back to start the process over again sending blood throughout the body. The art portion of this project presents the evolutionary history of the human heart by adding creative webpages and designs.
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Trevor decided to analyze the evolution of the heart by creating a webpage using HTML, CSS, and JavaScript. Trevor includes a timeline of major events that lead to the development of the human heart. His project started with the tubular heart around 600 million years ago. The tubular heart is one of the first hearts to be developed and did not support unilateral flow. Next, the hagfish heart is one of the earliest vertebrate hearts and is a closed circulatory system with a portal vein that sends blood to the gills and the heart. Next, around 400 million years ago, dual circulation evolved, which improved blood oxygenation efficiency. This is when vertebrates began to move to the land and out of the water, and gills were no longer needed and the lungs started to develop. The reptile heart from 327 million years ago has two evolutionary paths: one with a three-chambered heart with a deviated blood flow, and another with a four-chambered heart, creating two aortas and two ventricles. Finally, it covers the mammalian heart 220 million years ago. This heart is known for its four chambers, dual circulation, and higher blood pressure for better oxygen and nutrient distribution. Deoxygenated blood pumps to the lungs to collect oxygen, then travels to the tissues and heart to provide them with oxygen and pumps back to start the process over again sending blood throughout the body. The art portion of this project presents the evolutionary history of the human heart by adding creative webpages and designs.