How does blood get back to hearts of paralyzed people?

Question

Normal people have muscles at the vein that exerts a pressure to assist the blood back to the heart. Then how does the paralyzed get blood back to their hearts?

Answer 1

Like the first answerer said the heart is a muscle.  In fact it is the most powerful muscle in your entire body.  It's involuntary mechanisms, continuously and tirelessly (as long as you live) pump the blood throughout your entire body.  The mechanism that brings blood to the heart and takes it away from the heart is the pressure created by the heart's pumping.  The tissue that makes up your veins, arteries and capillaries isn't muscle tissue at all.  So your question in it's premise contains the misconception that the tissue of the veins, arteries and capillaries is muscle.  The ONLY muscle that has anything to do with blood pressure and the circulation of blood in your body is your heart.

Answer 2

blood returns to the heart by two means:

1- the muscle pushes the blood through the veins

2- the valves that close in order to prevent the blood from returning to the members again

that occurs to normal and paralysed people the same

because the returning of blood to the heart has nothing to do with paralysed people because people are paralysed for a different reason. it's not the blood, the veins, the heart

but it's the nervous system. paralysed people can't move their legs for example because there's a problem in the nervous system that prevents the nervous influx to get to the leg. but that doesn't affect the veins and the blood.

Answer 3

Yeah i agree with you, since the veins have rather low pressure and no pulsatile flow, they do rely on the contraction of muscle as we move to pump the blood back to the heart, they also rely on the valves to prevent backflow of blood. however paralyzed people are essentially immobilized, so they do not have the muscle pumping to push the blood back to the heart. they have to rely on the valves, so they tend to have alot of blood pooling in the lower legs forming varicose veins, and swollen legs. since they dont have to stand either if their paralyzed, the gravity wouldnt cause as much pooling of blood im guessing. so basically they have slow return of blood back to the heart i think.

Answer 4

It's not the muscles at the vein that exerts pressure. The heart is the muscle that pumps the blood to all parts of the body and returns it to the heart again. What you feel at your artery or vein is the pulse of your heart, not the artery or vein muscle.