|a cord connecting the embryo or fetus with the placenta of the mother and transporting nourishment from the mother and wastes from the fetus|
|one of the two organs in the back of the abdominal cavity that excrete urine, regulate fluid and electrolytes, and act as endocrine glands|
cul-de-sac (kŭl'dĭ-sāk', k&oobreve;l'-)
n. pl. culs-de-sac (kŭlz'-, k&oobreve;lz'-) or cul-de-sacs
A saclike cavity or tube open only at one end.