mesocardium

mesocardium
The double layer of splanchnic mesoderm supporting the embryonic heart in the pericardial cavity. It disappears before birth. [meso- + G. kardia, heart]
- dorsal m. the part of the m. dorsal to the embryonic heart; it breaks down to form the transverse sinus of the pericardium.
- ventral m. the part of the m. ventral to the embryonic cardiac tube; transitory in all vertebrates; in the higher mammals, it breaks through as soon as its component layers of epicardium make contact with each other.

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me·so·car·di·um -'kärd-ē-əm n
1) the transitory mesentery of the embryonic heart
2) either of two tubular prolongations of the epicardium that enclose the aorta and pulmonary trunk and the venae cavae and pulmonary veins

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meso·car·di·um (mez″o-) (me″zo-kahrґde-əm) [meso- + Gr. kardia heart] the part of the embryonic mesentery that connects the heart with the body wall ventrally and the foregut dorsally.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Mesocardium dorsale — dorsalinis širdies pasaitas statusas T sritis gyvūnų raida, augimas, ontogenezė, embriologija atitikmenys: lot. Mesocardium dorsale ryšiai: platesnis terminas – paprastoji vamzdelinė širdis …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • Mesocardium ventrale — ventralinis širdies pasaitas statusas T sritis gyvūnų raida, augimas, ontogenezė, embriologija atitikmenys: lot. Mesocardium ventrale ryšiai: platesnis terminas – paprastoji vamzdelinė širdis …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • mesocardium — /mez euh kahr dee euhm, mes , mee zeuh , seuh /, n., pl. mesocardia / dee euh/. Embryol. the double layer of splanchnic mesoderm supporting the embryonic heart. [MESO + CARDIUM] * * * …   Universalium

  • mesocardium — n. double layer of germ cells which supports the heart of an embryo (Embryology) …   English contemporary dictionary

  • mesocardium — meso·car·di·um …   English syllables

  • mesocardium — dēəm noun ( s) Etymology: New Latin, from mes + cardium 1. : the transitory mesentery of the embryonic heart 2. : the portion of the epicardium enclosing the blood vessels that join the heart * * * …   Useful english dictionary

  • arterial mesocardium — the part of the lamina visceralis pericardii serosi (visceral pericardium) that encloses the aorta and pulmonary artery …   Medical dictionary

  • dorsal mesocardium — the temporary dorsal mesentery of the heart in the embryo; its site in adults is represented by the transverse sinus of the pericardium …   Medical dictionary

  • venous mesocardium — the part of the lamina visceralis pericardii serosi (visceral pericardium) that encloses the venae cavae and pulmonary veins …   Medical dictionary

  • ventral mesocardium — a mesentery attaching the heart to the ventral body wall; it is scarcely represented in human development …   Medical dictionary

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