mammary gland cord formation
The process in which the mammary gland cord forms by elongation of the mammary bud. The cord is formed once the elongating bud breaks through the mesenchyme and reaches the fat pad.
GO:0016331
morphogenesis of embryonic epithelium
is_a
GO:0072175
epithelial tube formation
is_a
GO:0060652
mammary gland cord morphogenesis
part_of
mammary gland sprout formation
exact