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.
LVAD means Left Ventricular Assist Device. An LVAD is a surgically implanted mechanical device that helps the heart pump blood. In other words, they are heart pumps or heart assist devices.. If both your heart's pumping chambers are failing, 2 heart pumps may be used, one for each ventricle. The last few years have been a bonanza for this kind of technology, so settle in and read all about it.