cardiac jelly


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jelly

 [jel´e]
a soft, coherent, resilient substance; generally, a colloidal semisolid mass.
cardiac jelly a gelatinous substance present between the endothelium and myocardium of the embryonic heart that transforms into the connective tissue of the endocardium.
contraceptive jelly a nongreasy jelly containing a spermicide, used in the vagina for prevention of conception.
petroleum jelly petrolatum.
Wharton's jelly the soft, jelly-like intracellular substance of the umbilical cord.

car·di·ac jel·ly

the gelatinous, noncellular material between the endothelial lining and the myocardial layer of the heart in early embryos; later in development it serves as a substratum for cardiac mesenchyme.

car·di·ac jel·ly

(kahr'dē-ak jel'ē)
The gelatinous, noncellular material between the endothelial lining and the myocardial layer of the heart in very early embryos; later in development it serves as a substratum for cardiac mesenchyme (i.e., embryonic connective tissue).
References in periodicals archive ?
However, at the same level in the right wall, the myocardium did not form [Figure 4]b, arrow] and only a few a-SMA-positive cells were observed in the neighboring cardiac jelly [Figure 4]c, asterisk].
Also [25] reported in human embryo that at end of 3rd week of gestation the endocardium was lined by endothelial cells which rest on the cardiac jelly layer.
The cardiac jelly lying between the myocardium and endocardium is largely synthesized by myocardial cells.