ज्यामुळे शुद्ध रक्ताचे शरीरभर रक्तवाहिन्यांद्वारे अभिसरण होते तो छातीत डाव्या बाजूला असणारा एक अवयव.

The hollow muscular organ located behind the sternum and between the lungs. Its rhythmic contractions move the blood through the body.