The heart is a ____ that pumps ____ around the body. It has ____ chambers which are separated by ____ to stop the blood flowing backwards. ​ The ____ side of the heart contains deoxygenated blood and pumps blood to the ____. The ____ side of the heart has a thicker muscular wall because it pumps oxygenated blood around the ____.

Tauler de classificació

Estil visual

Opcions

Canvia de fonament

Restaurar desada automàtica: ?