Which Heart Chamber Has the Thickest Muscle Wall?

Answer

The human heart is made up of four chambers. There are two superior atria and two inferior ventricles. The heart chamber that has the thickest muscle wall is the left ventricle. The left ventricle is responsible for pumping the blood around the heart and so it needs to have a strong muscle wall.
Reference:
Q&A Related to "Which Heart Chamber Has the Thickest Muscle..."
Left ventricle, as it pumps blood around the whole body. The right ventricle only pumps blood as far as the lungs.
http://wiki.answers.com/Q/Which_heart_chamber_has_...
The left ventricle has the thickest wall because it must work the hardest
http://www.chacha.com/question/which-heart-chamber...
The left ventricle. The muscle must be much stronger in this chamber because it propels blood out into the systemic circuit. The right ventricle only has to pump blood through the
http://answers.yahoo.com/question/index?qid=200812...
Left ventricle -- it works the hardest & needs the most muscle mass.
http://www.answerbag.co.uk/q_view/784200
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