base of heart

base of heart

[TA]
that part of the heart that lies opposite the apex, formed mainly by the left atrium but to a small extent by the posterior part of the right atrium; it is directed backward and to the right and is separated from the vertebral column by the esophagus and aorta.
Synonym(s): basis cordis [TA]

base of heart

(bās hahrt)
That part of the heart that lies opposite the apex, formed mainly by the left atrium but to a small extent by the posterior part of the right atrium; it is directed backward and to the right and is separated from the vertebral column by the esophagus and aorta.
Synonym(s): basis cordis [TA] .
References in periodicals archive ?
Oesophageal foreign bodies are most commonly lodged at the thoracic inlet, base of heart and caudal oesophagus, where extraoesophageal stricture restrict oesophageal dilatation.
where short axis diameter significantly reduces than the long axis diameter because of contraction of base of heart and displacement of aortomitral curtain towards centre of mitral orifice).
These regions included pharyngeal oesophagus, thoracic inlet, base of heart and distal oesophagus (Houlton et al.
They further reported of reduction of 26% [+ or -] 3% in mitral valve orifice area during systole due to contraction of base of heart and displacement of aortic-mitral curtain toward center of mitral orifice.