interatrial foramen

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• Primary interatrial foramen — Interior of dorsal half of heart from a human embryo of about thirty days. (Ostium primum visible below septum primum, but not labeled.) Latin …   Wikipedia

• interatrial foramen primum — ostium primum …   Medical dictionary

• interatrial foramen secundum — ostium secundum …   Medical dictionary

• Foramen secundum — Latin foramen secundum Days 33 Code TE E5.11.1.5.2.1.2 The ostium secundum (or foramen secundum) is a foramen in the septum primum. It should not be confused with the foramen ovale, which is a foramen in the septum secundum …   Wikipedia

• Foramen ovale (heart) — Not to be confused with ostium secundum. Foramen ovale (heart) Sketch showing foramen ovale in a fetal heart. Red arrow shows blood from the inferior caval vein. HF: right atrium, VF: left atrium. HH og VH: right and left ventricle. The heart… …   Wikipedia

• Foramen — A natural opening. Although a foramen is usually through bone, it can be an opening through other types of tissue, as with the foramen ovale. * * * An aperture or perforation through a bone or a membranous structure. SYN: trema (1). [L. an… …   Medical dictionary

• 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

• Circulatory system — This article is about the organ system. For the band, see Circulatory System. For transport in plants, see Vascular tissue. Circulatory system …   Wikipedia

• ostium secundum — ostium se·cun·dum sə kən dəm n an opening in the upper part of the developing embryonic interatrial septum corresponding to the foramen ovale of the fetus * * * an opening high in the septum primum of the embryonic heart, approximately where the… …   Medical dictionary

• animal development — Introduction  the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by …   Universalium

• ostium — A small opening, especially one of entrance into a hollow organ or canal. SEE ALSO: orifice, opening, os, mouth (2). [L. door, entrance, mouth] o. abdominale tubae uterinae [TA] SYN: abdominal o. of uterine tube …   Medical dictionary