the.com/left ventricle
The heart's power lifter — one chamber doing most of the actual work of living.
means The heart's thick-walled lower-left chamber that pumps oxygen-rich blood out through the aorta to the entire body.
from 'Ventricle' comes from Latin ventriculus, 'little belly,' a diminutive of venter ('belly, womb') — anatomists used it for any small hollow or cavity in the body, not just the heart; the brain has ventricles too. 'Left' is just plain Old English lyft, originally meaning 'weak' or 'worthless,' a slur that stuck because most people favor their right hand — ironic, since the left ventricle is the heart's strongest chamber, built with thicker muscle to push blood all the way out to the toes.
- wall thickness
- up to three times thicker than the right ventricle
- job
- pumps blood to the entire body, not just lungs
- pressure
- generates roughly five times the right side's output pressure
- failure risk
- most common site of heart failure diagnosis