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.
The heart is a muscle. It has four chambers that pump blood. The upper two chambers are called the atria and the lower two chambers are called the ventricles.. The heart is really two pumps that work together to move blood through the body.The right-sided pump fills with blood returning from the body and pumps it to the lungs to receive oxygen.This right-sided pump is a thinner muscle than the left-sided pump because it only has to pump blood to the lungs. The left side of the heart receives blood from the lungs and pumps it out to all parts of the body.he heart is a muscle. It has four chambers that pump blood. The upper two chambers are called the atria and the lower two chambers are called the ventricles.. The heart is really two pumps that work together to move blood through the body.