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body stalk

   Also found in: Dictionary/thesaurus, Legal, Encyclopedia 0.01 sec.
stalk (stawk) an elongated anatomical structure resembling the stem of a plant.
allantoic stalk  the slender tube interposed between the urogenital sinus and allantoic sac; it is the precursor of the urachus.
body stalk , connecting stalk a bridge of mesoderm connecting the caudal end of the young embryo with the trophoblastic tissues; the precursor of part of the umbilical cord.
pineal stalk  habenula (2).
yolk stalk  a narrow duct connecting the yolk sac (umbilical vesicle) with the midgut of the early embryo.

body stalk,
the elongated part of the embryo that is connected to the chorion. See also allantois.


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