Your heart has four valves. Normally, these valves open to let blood flow through your heart, and then shut to keep it from flow
ing backward. Sometimes the valves don't work properly, causing some or all of the following disorders. In regurgitation, blood leaks back through the valve in the wrong direction. In valve prolapse, the valves have "floppy" flaps and don't close tightly. It's one of the most common heart valve conditions. Sometimes it causes regurgitation. In stenosis, the valve doesn't open enough and blocks blood flow. Based on your knowledge of the heart, explain how regurgitation, valve prolapse, and stenosis each adversely affects blood flow and the oxygenation of body tissues.
Your heart has four valves. Normally, these valves open to let blood flow through your heart, and then shut to keep it from flowing backward. Sometimes the valves don't work properly, causing some or all of the following disorders. In regurgitation, blood leaks back through the valve in the wrong direction. In valve prolapse, the valves have "floppy" flaps and don't close tightly. It's one of the most common heart valve conditions. Sometimes it causes regurgitation. In stenosis, the valve doesn't open enough and blocks blood flow. Based on your knowledge of the heart, explain how regurgitation, valve prolapse, and stenosis each adversely affects blood flow and the oxygenation of body tissues.
As the text just states vavles oone to let blood fkow through into the heart but it also said that sometime they're don't work properly and cause disorders and the valve prolapse is when the vavles have floppy flaps ans don't close
Regurgitation affects the blood flow by mixing oxygen-rich blood with oxygen-poor. The heart has to pump more to oxygenate the whole body resulting in a rapid, fluttering heartbeat. Tissues get oxygenated but regurgitation could be fatal, because the heart cannot work overtime forever.
Valve prolapse affects blood flow when the blood flows back up. This causes a racing or irregular heartbeat. Sometimes blood can flow back up to the lungs. There isn't a big impact in the oxygenation of body tissues.
Stenosis causes the ventricle to thicken and pump overtime to get enough blood through. This works for a while but this will lead to heart failure because the heart can't do it for a lifetime. The tissues are oxygenated but overtime it will be an issue.
Cholera is an acute type of diarrheal illness that affected millions of people around the world over the centuries. <em>Vibrio cholerae </em>is the<em> </em> causative bacterium of the disease. It is transmitted by drinking contaminated water of food with <em>vibrio cholerae.</em> The source of the contamination is usually the feces of an infected person or water contaminated with sewage.
Humans gain more energy from eating the plants rather than the cow.
Explanation:
More consumers in a chain of eating means less energy reaches the final consumer. Approximately 10% of the energy from food is given to the consumer when eaten, and this chain continues down the line of consumers. This is known as the 10% rule in biology. This rule is used by an ecosystem to limit the amount of animals it can support.