I'm not sure of your question, but I think you're looking for <span>esophageal sphincter. </span>
<span>TRUE! Regular aerobic exercise increases the strength of the heart to pump blood, improves capillary density in muscles and organs and increase the pliability of the blood vessels to move blood. All of this combines to improve VO2 max or the maximal amount of oxygen the body can use during exercise.</span>
Cleans the blood when the kidneys are unable to