You are talking about "heart failure". There are two kinds. Edema (swelling) in the feet happens when the heart is having trouble pumping blood out of the body and to the lungs for oxygenation. Because of this, fluids build up in the extremities. Sometimes the heart has trouble pumping blood out of the lungs and back into the body's general circulation. In this case the build-up of fluid is in the lungs.
You may not know this but as well as pumping, your heart also sucks blood back into its' chambers like a vaccum which is how your blood gets returned to your heart.
The coronary arteries carry blood to the muscle that makes up the heart but this blood comes directly from the large artery called the aorta.Otherwise arteries always carry blood way from the heart and veins carry it back. As far as if it they carry oxygen or not, veins carry blood back from the body without oxygen and back from the lungs with oxygen.
The right side of the heart pumps blood to the lungs to pick up oxygen. From the lungs it goes back to the left side of the heart, which pumps it out to the rest of the body. Blood then returns to the right side of the heart and starts the cycle over.
Your heart pumps blood to all organs in your body. when you stand upright blood will be pumped to your feet with much less effort than standing on your head. When you are under normal gravitational force, even though gravity has an effect on blood flow, your blood circulation is totally controlled by your heart. So when you stand on your head blood will also be pumped to your feet.
Gravity
You are talking about "heart failure". There are two kinds. Edema (swelling) in the feet happens when the heart is having trouble pumping blood out of the body and to the lungs for oxygenation. Because of this, fluids build up in the extremities. Sometimes the heart has trouble pumping blood out of the lungs and back into the body's general circulation. In this case the build-up of fluid is in the lungs.
The pulmonary arteries are the blood vessels that carry blood back up to the upper parts of the heart. There is one on each side of the heart that helps with this.
Answer Wiggling toes isn't as good as actually getting up and getting going or, you can lay back and put your feet up on pillows level with your heart. The heart has to pump hard to get the blood flow to the lower extremities.
You may not know this but as well as pumping, your heart also sucks blood back into its' chambers like a vaccum which is how your blood gets returned to your heart.
The pulmonary arteries are the blood vessels that carry blood back up to the upper parts of the heart. There is one on each side of the heart that helps with this.
The pulmonary circulation system is responsible for moving blood from the heart to the lungs for oxygenation and then back to the heart to be pumped to the rest of the body. The pulmonary arteries carry deoxygenated blood from the heart to the lungs, where it picks up oxygen, and the pulmonary veins return oxygenated blood back to the heart.
It can blast blood up to 30 feet in an average human. 60 feet in an athlete.
peripheral veins have valves to help get the blood back up to the heart but arteries do not because they have enough pressure from the pumping of the heart to get the blood out to the body.
i dontfriquinknow
The coronary arteries carry blood to the muscle that makes up the heart but this blood comes directly from the large artery called the aorta.Otherwise arteries always carry blood way from the heart and veins carry it back. As far as if it they carry oxygen or not, veins carry blood back from the body without oxygen and back from the lungs with oxygen.
Because the 4 feet, when kept in a natural barefoot state, pump blood back up to the heart as they expand and contract with each step. When the foot is set down on the ground, it expands and fills with blood. When the foot is picked up, it contracts and the blood is sent back up the hoof to the heart. Roughly a liter of blood is pumped through the body between each 4 feet every 20 strides. So some may call the feet the other four hearts. HOWEVER, with horseshoes, the hoof cannot expand, therefore reducing circulation, straining the horses heart more since it lost the use of its "four hearts" and that is part of the reason there is this natural horse, barefoot movement going on.