Photosynthesis takes place in the roots of the plant
No they are not the opposite, they are the end products for photosynthesis.
At the end of the esophagus is a thick ring of a muscle called a sphincter which allows food to enter the stomach but not from the stomach back into the esophagus. Once the food enters the stomach it is mixed with the digestive juices.
The oldest client is at more risk for heart failure. A third heart sound is caused by a sudden reduction in the speed of blood flow from the left atrium to the left ventricle. It is said to be a normal phenomenon for young people and athletes but in older people who do not exercise, it indicates a congestive heart failure.