Skip to main content
Glite Dictionary
interatrial

interatrial

8.1
An area between the two upper chambers of the heart
  • adjective
  • /ˌɪntərˈeɪtriəl/
  • Specialized
: interauricular
  • Atrial septal aneurysm is a congenital malformation of the septum primum layer of the interatrial septum, but differences between interatrial pressure forces have also been reported as a cause of its development.
  • interatrial septum

Examples

  • Atrial septal aneurysm is a congenital malformation of the septum primum layer of the interatrial septum, but differences between interatrial pressure forces have also been reported as a cause of its development.

    Academic text (2007)

  • The interatrial septum separates the left and right atria of the heart, preventing the mixing of oxygen-rich and oxygen-poor blood.

  • In cases of interatrial shunting, blood flows abnormally between the atria, which can lead to various heart issues.

  • Doctors monitor interatrial pressures in patients with certain heart conditions to assess their risk of developing complications.

Surface Forms

interatrial positive

Morphology

interatrial = atrial (transparent) = inter + atrial

The adjective 'atrial' (relating to an atrium) combined with the productive prefix 'inter-' yields the straightforward meaning 'between the atria'.

Etymology

Interatrial is made of inter- 'between' and atrial from atrium 'entrance hall' or 'chamber'. In the heart an atrium is an 'upper chamber', so interatrial means 'between the two upper chambers' of the heart.