Umbilical cord
An umbilical cord functioned as a connection between pre-born mammals and their mothers that delivered blood and nutrients. The attachment ran from the infant's navel to the placenta located in the mother's uterus.

In 2366, Jean-Luc Picard described the android Lal's dependency on her "father" Data to Vice admiral Haftel by saying that the umbilical cord (in this case, metaphorical) was virtually uncut. () 

In 2368, Worf cut newborn Molly O'Brien's umbilical cord while delivering her when the  was experiencing the effects of a quantum filament. ()

See also
 Umbilical separation

External link

Anatomy