Historical biological theories tend to describe that behaviors are inherited biological tendencies passed down through evolution, and contemporary biosocial theories are explained by saying that genes and other biological features are more facilitators of human behavior instead of determinants.
Like the heart, the LVAD is a pump. One end hooks up to the left ventricle -- that's the chamber of the heart that pumps blood out of the lungs and into the body. The other end hooks up to the aorta, the body's main artery. A tube passes from the device through the skin.
First, when the rateâs that fast, the heart canât efficiently empty the blood from its chambers. Second, those chambersâ pumping rhythms can get out of sync. (Normally your atria pump blood to your ventricles, which pump it out milliseconds later. You can hear that when you listen through a stethoscope.