dorsal foramen

dorsal foramen
A posterior perforation of the cardial plate that may or may not encroach on the beak of the brachial valve.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • Foramen secundum — Latin foramen secundum Days 33 Code TE E5. 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 ischiadicum majus — Das Foramen ischiadicum majus („großes Sitzbeinloch“) ist eine Öffnung der Körperwand im Bereich der Gesäßregion. Knöchern wird dieses Loch bauchwärts (ventral) vom großen Sitzbeinausschnitt (Incisura ischiadica major, → Sitzbein) begrenzt.… …   Deutsch Wikipedia

  • Dorsal mesentery — Abdominal part of digestive tube and its attachment to the primitive or common mesentery. Human embryo of six weeks …   Wikipedia

  • Foramen magnum — es el nombre del orificio en la parte inferior del cráneo, a través del cual el extremo de la espina dorsal se inserta en el cerebro. En la evolución del hombre, mientras mas abajo estuviera el foramen magnum, mas erguida era la posicion de la… …   Enciclopedia Universal

  • foramen cecum — foramen ce·cum sē kəm n a shallow depression in the posterior dorsal midline of the tongue that is the remnant of the more cranial part of the embryonic duct from which the thyroid gland developed …   Medical dictionary

  • Foramen orbitorotundum — Schädel in Seitenansicht: 1. Stirnbein (Os frontale) 2. Scheitelbein (Os parietale) 3. Nasenbein (Os nasale) 4 …   Deutsch Wikipedia

  • Dorsal aorta — This article is about the embryonic artery. For the artery in adult fish, see Aorta#In other animals. Dorsal aortae Profile view of a human embryo estimated at twenty or twenty one days old. (Dorsal aorta labeled at center left.) …   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

  • 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

  • Dorsal nerve of the penis — Nerve: Dorsal nerve of the penis Pudendal nerve, its course through the lesser sciatic foramen, and branches, including dorsal nerve of the penis at bottom left …   Wikipedia

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