- pars occlusa arteriae umbilicalis
- [TA] the portion of an umbilical artery that atrophies at birth when the placental circulation ceases to become the medial umbilical ligament. Cf. p. patens arteriae umbilicalis.
Medical dictionary. 2011.
pars occlusa arteriae umbilicalis
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pars patens arteriae umbilicalis — [TA] patent part of umbilical artery: the proximal section of the fetal umbilical cord, which remains patent in the adult, although reduced in size. Cf. p. occlusa arteriae umbilicalis … Medical dictionary