Interatrial septum
The partition separating the upper chambers (the atria) of the heart.

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interatrial septum n the wall separating the right and left atria of the heart called also atrial septum

Medical dictionary. 2011.

Look at other dictionaries:

  • Interatrial septum — Infobox Anatomy Name = PAGENAME Latin = GraySubject = 138 GrayPage = 530 Caption = Interior of right side of heart. (labeled at right, as atrial septum ) Caption2 = Interior of dorsal half of heart of human embryo of about thirty five days.… …   Wikipedia

  • interatrial septum of heart — septum interatriale cordis [TA] the wall that separates the atria of the heart …   Medical dictionary

  • Septum (disambiguation) — Septum or septa may refer to: * Septum, a partition of two cavities or spaces * Septum (marine biology), in marine biology, a thin membrane separating each shell chamber in cephalopods that retained their external shell * Septum nasi or septum,… …   Wikipedia

  • Septum, cardiac — The cardiac septum is the dividing wall between the right and left sides of the heart. That portion of the septum that separates the two upper chambers (the right and left atria) of the heart is termed the atrial (or interatrial) septum while the …   Medical dictionary

  • Septum, heart — The septum of the heart is the dividing wall between the right and left sides of the heart. That portion of the septum that separates the two upper chambers (the right and left atria) of the heart is termed the atrial (or interatrial) septum… …   Medical dictionary

  • Septum, interatrial — The wall separating the upper chambers (the atria) of the heart. A hole in the interatrial septum is termed an atrial septal defect (ASD) …   Medical dictionary

  • septum secundum — the second septum in the embryonic heart, to the right of the septum primum; after birth it fuses with the septum primum to close the foramen ovale and form the interatrial septum …   Medical dictionary

  • interatrial — “+ adjective Etymology: inter + atrial : situated between the atria of the heart interatrial septum * * * adj …   Useful english dictionary

  • Septum — A word borrowed from the Latin "saeptum" meaning a "dividing wall or enclosure." * * * 1. [TA] A thin wall dividing two cavities or masses of softer tissue. See septal area, transparent s.. 2. In fungi, a wall; usually a cross …   Medical dictionary

  • Interventricular septum — Section of the heart showing the ventricular septum. Interior of dorsal half …   Wikipedia

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